NSB: count from 0, vnf_0, tg_9, private->uplink, public->downlink

Also rename private to uplink, public to downlink

for scale-out template we need to count from 0
so we can use range() without +1/-1 errors

vnf_0, vnf_1
tg_0, tg_1

also fix Ixia defaults

Change-Id: I6aecfbb95f99af20f012a9df19c19be77d1b5b77
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Edward MacGillivray <edward.s.macgillivray@intel.com>

151 files changed, 1088 insertions, 1062 deletions

diff --git a/samples/vnf_samples/nsut/2trex/tc_trex_baremetal_context.yaml b/samples/vnf_samples/nsut/2trex/tc_trex_baremetal_context.yaml
index e0ba6d96f..d96236e17 100644
--- a/samples/vnf_samples/nsut/2trex/tc_trex_baremetal_context.yaml
+++ b/samples/vnf_samples/nsut/2trex/tc_trex_baremetal_context.yaml
@@ -23,12 +23,12 @@ scenarios:
 
   nodes:  # This section is copied from pod.xml or resolved via Heat
     trexgen__1: trafficgen_1.yardstick
-    trexvnf__1: vnf.yardstick
+    trexvnf__0: vnf.yardstick
 
   vnf_options:
     trexgen__1:
-      target_ip: trexvnf__1.xe0.local_ip  # TODO: resolve to config vars
-    trexvnf__1:
+      target_ip: trexvnf__0.xe0.local_ip  # TODO: resolve to config vars
+    trexvnf__0:
       target_ip: trexgen__1.xe1.local_ip  # TODO: resolve to config vars
   runner:
     type: Duration
diff --git a/samples/vnf_samples/nsut/2trex/trex_tg_topology.yaml b/samples/vnf_samples/nsut/2trex/trex_tg_topology.yaml
index 1a9b50c84..822cf5eba 100644
--- a/samples/vnf_samples/nsut/2trex/trex_tg_topology.yaml
+++ b/samples/vnf_samples/nsut/2trex/trex_tg_topology.yaml
@@ -20,15 +20,15 @@ nsd:nsd-catalog:
         description: trex-tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: trexgen__1
+            vnfd-id-ref: trexgen__0
             VNF model: ../../vnf_descriptors/tg_trex_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: trexvnf__1
+            vnfd-id-ref: trexvnf__0
             VNF model: ../../vnf_descriptors/tg_trex_tpl.yaml      #VNF type
 
         vld:
-        -   id: private
-            name: trexgen__1 to trexvnf__1 link 1
+        -   id: uplink
+            name: trexgen__0 to trexvnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
@@ -38,8 +38,8 @@ nsd:nsd-catalog:
                 vnfd-connection-point-ref: xe0
                 vnfd-id-ref: trexgen
 
-        -   id: public
-            name: trexvnf__1 to trexgen__1 link 2
+        -   id: downlink
+            name: trexvnf__0 to trexgen__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
diff --git a/samples/vnf_samples/nsut/acl/acl-tg-topology-3node.yaml b/samples/vnf_samples/nsut/acl/acl-tg-topology-3node.yaml
index 36cb2e88b..b51f3eb04 100644
--- a/samples/vnf_samples/nsut/acl/acl-tg-topology-3node.yaml
+++ b/samples/vnf_samples/nsut/acl/acl-tg-topology-3node.yaml
@@ -20,43 +20,43 @@ nsd:nsd-catalog:
         description: 3tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/acl_vnf.yaml      #VNF type
         -   member-vnf-index: '3'
-            vnfd-id-ref: tg__2
+            vnfd-id-ref: tg__1
             VNF model: ../../vnf_descriptors/udp_replay_vnf.yaml      #VNF type
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
-        -   id: private_2
-            name: tg__1 to vnf__1 link 2
+                vnfd-id-ref: vnf__0
+        -   id: uplink_1
+            name: tg__0 to vnf__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
-        -   id: public_1
-            name: vnf__1 to tg__2 link 2
+                vnfd-id-ref: tg__0
+        -   id: downlink_0
+            name: vnf__0 to tg__1 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '3'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__2
+                vnfd-id-ref: tg__1
diff --git a/samples/vnf_samples/nsut/acl/acl-tg-topology.yaml b/samples/vnf_samples/nsut/acl/acl-tg-topology.yaml
index 9bc3e8559..00666092f 100644
--- a/samples/vnf_samples/nsut/acl/acl-tg-topology.yaml
+++ b/samples/vnf_samples/nsut/acl/acl-tg-topology.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: 3tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/acl_vnf.yaml      #VNF type
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixia.yaml b/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixia.yaml
index 606d557e9..e6932acbd 100644
--- a/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixia.yaml
+++ b/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixia.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with VACL,L3fwd and VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/ixia_rfc2544_tpl.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/acl_vnf.yaml
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                  #TREX
+                vnfd-id-ref: tg__0                  #TREX
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  #VNF
+                vnfd-id-ref: vnf__0                  #VNF
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  #L3fwd
+                vnfd-id-ref: vnf__0                  #L3fwd
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1                  #VACL VNF
+                vnfd-id-ref: tg__0                  #VACL VNF
diff --git a/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixload.yaml b/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixload.yaml
index 2fc173aed..97a316625 100644
--- a/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixload.yaml
+++ b/samples/vnf_samples/nsut/acl/acl_vnf_topology_ixload.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with HTTP and vACL VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_ixload.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/acl_vnf.yaml
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                   # HTTP Client
+                vnfd-id-ref: tg__0                   # HTTP Client
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  # VNF
+                vnfd-id-ref: vnf__0                  # VNF
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  # HTTP Server
+                vnfd-id-ref: vnf__0                  # HTTP Server
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1                   # VACL VNF
+                vnfd-id-ref: tg__0                   # VACL VNF
diff --git a/samples/vnf_samples/nsut/acl/ixia_traffic.cfg b/samples/vnf_samples/nsut/acl/ixia_traffic.cfg
index f749865c5..3f7e33471 100644
--- a/samples/vnf_samples/nsut/acl/ixia_traffic.cfg
+++ b/samples/vnf_samples/nsut/acl/ixia_traffic.cfg
@@ -1,5 +1,5 @@
 {
-    "private_1": {
+    "uplink_0": {
         "id": 1,
         "bidir": "False",
         "duration": 60,
@@ -23,7 +23,7 @@
         },
         "traffic_type": "continuous"
     },
-    "public_1": {
+    "downlink_0": {
         "id": 2,
         "bidir": "False",
         "duration": 60,
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
index 1220cae73..31ee32b7b 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
@@ -19,18 +19,18 @@ scenarios:
   traffic_profile: "../../traffic_profiles/http_tests/HTTP_1b-requests_65000_concurrency.yaml"
   topology: acl_vnf_topology_ixload.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
index 7359c6257..2da7d6675 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency.yaml"
   topology: acl_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml
index 2503add5e..088ef5474 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
index eb0dcb63d..3e1345a17 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml
index 1261aa0c8..9753812ac 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml
@@ -19,22 +19,22 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology-3node.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
+      src_ip: [{'tg__0': 'xe0'}]
       dst_ip: [{'tg__1': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
       correlated_traffic: true
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml
index ce9ada745..5bd0f175b 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml
@@ -20,20 +20,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'HW', lb_count: 1, worker_config: '1C/1T', worker_threads: {{worker_thread}}}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_worstcaserules_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_worstcaserules_1flow_64B_trex.yaml
index eb0dcb63d..3e1345a17 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_worstcaserules_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_ipv4_worstcaserules_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml
index e06ab8f2d..1cf37ca26 100644
--- a/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/acl/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/acl/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
index f39d1be9e..c335c263a 100644
--- a/samples/vnf_samples/nsut/acl/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
   runner:
diff --git a/samples/vnf_samples/nsut/acl/tc_heat_trex_external_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml b/samples/vnf_samples/nsut/acl/tc_heat_trex_external_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml
index 982c0371d..f0869ecf8 100644
--- a/samples/vnf_samples/nsut/acl/tc_heat_trex_external_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/acl/tc_heat_trex_external_rfc2544_ipv4_1rule_1flow_64B_packetsize.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.baremetal
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.baremetal
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology-3node.yaml b/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology-3node.yaml
index 7b681b52a..e4c0fc9ee 100644
--- a/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology-3node.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology-3node.yaml
@@ -20,43 +20,43 @@ nsd:nsd-catalog:
         description: 3tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/cgnapt_vnf.yaml      #VNF type
         -   member-vnf-index: '3'
-            vnfd-id-ref: tg__2
+            vnfd-id-ref: tg__1
             VNF model: ../../vnf_descriptors/udp_replay_vnf.yaml #VNF type
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
-        -   id: private_2
-            name: tg__1 to vnf__1 link 2
+                vnfd-id-ref: vnf__0
+        -   id: uplink_1
+            name: tg__0 to vnf__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
-        -   id: public_1
-            name: vnf__1 to tg__2 link 2
+                vnfd-id-ref: tg__0
+        -   id: downlink_0
+            name: vnf__0 to tg__1 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '3'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__2
+                vnfd-id-ref: tg__1
diff --git a/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology.yaml b/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology.yaml
index e668c2eb9..d67f38a4f 100644
--- a/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/cgnapt-vnf-topology.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: 3tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/cgnapt_vnf.yaml      #VNF type
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixia.yaml b/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixia.yaml
index a13a64fd5..fbc9ab95c 100644
--- a/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixia.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixia.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with vCGNAPT VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/ixia_rfc2544_tpl.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/cgnapt_vnf.yaml
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixload.yaml b/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixload.yaml
index b4feaf03d..71535dfb7 100644
--- a/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixload.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/cgnapt_vnf_topology_ixload.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with HTTP and vCGNAPT VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_ixload.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/cgnapt_vnf.yaml
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                   # HTTP Client
+                vnfd-id-ref: tg__0                   # HTTP Client
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  # VNF
+                vnfd-id-ref: vnf__0                  # VNF
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  # HTTP Server
+                vnfd-id-ref: vnf__0                  # HTTP Server
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1                   # VCGNAPT VNF
+                vnfd-id-ref: tg__0                   # VCGNAPT VNF
diff --git a/samples/vnf_samples/nsut/cgnapt/ixia_traffic.cfg b/samples/vnf_samples/nsut/cgnapt/ixia_traffic.cfg
index f749865c5..3f7e33471 100644
--- a/samples/vnf_samples/nsut/cgnapt/ixia_traffic.cfg
+++ b/samples/vnf_samples/nsut/cgnapt/ixia_traffic.cfg
@@ -1,5 +1,5 @@
 {
-    "private_1": {
+    "uplink_0": {
         "id": 1,
         "bidir": "False",
         "duration": 60,
@@ -23,7 +23,7 @@
         },
         "traffic_type": "continuous"
     },
-    "public_1": {
+    "downlink_0": {
         "id": 2,
         "bidir": "False",
         "duration": 60,
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
index 6d769d4f4..d5fda5804 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
@@ -19,8 +19,8 @@ scenarios:
   traffic_profile: "../../traffic_profiles/http_tests/HTTP_1b-requests_65000_concurrency.yaml"
   topology: cgnapt_vnf_topology_ixload.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
@@ -28,7 +28,7 @@ scenarios:
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
   runner:
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml
index 6160ca090..7d6203c0c 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml
@@ -19,21 +19,21 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency.yaml"
   topology: cgnapt_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       publicip: ["152.16.40.10"]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
   runner:
     type: Iteration
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia_scale_up.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia_scale_up.yaml
index 1dd2a6e91..cd74655d5 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia_scale_up.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia_scale_up.yaml
@@ -20,21 +20,21 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency_cgnapt.yaml"
   topology: cgnapt_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       publicip: ["152.16.40.10"]
       count: 1000
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: {{worker_thread}}}
       nfvi_enable: True
   runner:
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml
index f93176dde..3390cf022 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml
@@ -19,21 +19,21 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput_cgnapt.yaml
   topology: cgnapt-vnf-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       publicip: ["152.16.40.10"]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
   runner:
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml
index f110ab233..424422dd2 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml
@@ -19,22 +19,22 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput_cgnapt.yaml
   topology: cgnapt-vnf-topology-3node.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__2': 'xe0'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__1': 'xe0'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
       correlated_traffic: true
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       napt: 'dynamic'
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_scale_up.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_scale_up.yaml
index dcc6c502b..3736715ac 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_scale_up.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_scale_up.yaml
@@ -20,21 +20,21 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput_cgnapt.yaml
   topology: cgnapt-vnf-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       publicip: ["152.16.40.10"]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'HW', lb_count: 1, worker_config: '1C/1T', worker_threads: {{worker_thread}}}
       nfvi_enable: True
   runner:
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_64B_trex.yaml
index f55278523..0fbd402ac 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_64B_trex.yaml
@@ -19,22 +19,22 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput_cgnapt.yaml
   topology: cgnapt-vnf-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       publicip: ["152.16.40.10"]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
       latency: true
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
   runner:
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_dynamic_cgnapt_ixia.yaml b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_dynamic_cgnapt_ixia.yaml
index 55292a371..e400b1750 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_dynamic_cgnapt_ixia.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_baremetal_rfc2544_with_latency_ipv4_1flow_dynamic_cgnapt_ixia.yaml
@@ -19,16 +19,16 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency.yaml"
   topology: cgnapt-vnf-topology-ixia-3node.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__2': 'xe0'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__1': 'xe0'}]
       count: 1
     traffic_type: 4
     rfc2544:
@@ -36,7 +36,7 @@ scenarios:
       correlated_traffic: true
       latency: true
       fec_port_mode: '10G'
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       napt: 'dynamic'
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_heat_external_rfc2544_ipv4_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/cgnapt/tc_heat_external_rfc2544_ipv4_1flow_64B_trex.yaml
index c62e89f40..b3061a385 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_heat_external_rfc2544_ipv4_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_heat_external_rfc2544_ipv4_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput_cgnapt.yaml
   topology: cgnapt-vnf-topology.yaml
   nodes:
-    tg__1: trafficgen_1.baremetal
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.baremetal
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
   runner:
     type: Iteration
diff --git a/samples/vnf_samples/nsut/cgnapt/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/cgnapt/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml
index 8e8424891..50398b15e 100644
--- a/samples/vnf_samples/nsut/cgnapt/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/cgnapt/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput_cgnapt.yaml
   topology: cgnapt-vnf-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
   runner:
     type: Iteration
diff --git a/samples/vnf_samples/nsut/ping/ping_tg_topology.yaml b/samples/vnf_samples/nsut/ping/ping_tg_topology.yaml
index b2b852a79..244d0b6d6 100644
--- a/samples/vnf_samples/nsut/ping/ping_tg_topology.yaml
+++ b/samples/vnf_samples/nsut/ping/ping_tg_topology.yaml
@@ -20,15 +20,15 @@ nsd:nsd-catalog:
         description: ping-tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_ping_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/tg_ping_tpl.yaml      #VNF type
 
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
@@ -38,8 +38,8 @@ nsd:nsd-catalog:
                 vnfd-connection-point-ref: xe0
                 vnfd-id-ref: trexgen
 
-        -   id: public
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
diff --git a/samples/vnf_samples/nsut/ping/tc_external_ping_heat_context.yaml b/samples/vnf_samples/nsut/ping/tc_external_ping_heat_context.yaml
index c5a52f27e..6e3dd3280 100644
--- a/samples/vnf_samples/nsut/ping/tc_external_ping_heat_context.yaml
+++ b/samples/vnf_samples/nsut/ping/tc_external_ping_heat_context.yaml
@@ -22,8 +22,8 @@ scenarios:
   topology: ping_tg_topology.yaml
 
   nodes:
-    tg__1: trafficgen_1.baremetal
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.baremetal
+    vnf__0: vnf.yardstick
 
   runner:
     type: Duration
@@ -50,7 +50,6 @@ contexts:
         external_network: "yardstick-public"
       xe0:
         cidr: '10.0.2.0/24'
-
       xe1:
         cidr: '10.0.3.0/24'
 
diff --git a/samples/vnf_samples/nsut/ping/tc_ping_baremetal_context.yaml b/samples/vnf_samples/nsut/ping/tc_ping_baremetal_context.yaml
index 5f2c55b81..63f252484 100644
--- a/samples/vnf_samples/nsut/ping/tc_ping_baremetal_context.yaml
+++ b/samples/vnf_samples/nsut/ping/tc_ping_baremetal_context.yaml
@@ -22,13 +22,13 @@ scenarios:
   topology: ping_tg_topology.yaml  # TODO: look in relative path where the tc.yaml is found
 
   nodes:  # This section is copied from pod.xml or resolved via Heat
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   vnf_options:
-    tg__1:
-      target_ip: pingvnf__1.xe0.local_ip  # TODO: resolve to config vars
-    vnf__1:
+    tg__0:
+      target_ip: pingvnf__0.xe0.local_ip  # TODO: resolve to config vars
+    vnf__0:
       target_ip: pinggen__1.xe1.local_ip  # TODO: resolve to config vars
   runner:
     type: Duration
diff --git a/samples/vnf_samples/nsut/ping/tc_ping_heat_context.yaml b/samples/vnf_samples/nsut/ping/tc_ping_heat_context.yaml
index e6bf44311..a3a11f670 100644
--- a/samples/vnf_samples/nsut/ping/tc_ping_heat_context.yaml
+++ b/samples/vnf_samples/nsut/ping/tc_ping_heat_context.yaml
@@ -22,8 +22,8 @@ scenarios:
   topology: ping_tg_topology.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   runner:
     type: Duration
diff --git a/samples/vnf_samples/nsut/ping/tc_ping_ovs_dpdk_context.yaml b/samples/vnf_samples/nsut/ping/tc_ping_ovs_dpdk_context.yaml
index 7654b0f96..5733f0df8 100644
--- a/samples/vnf_samples/nsut/ping/tc_ping_ovs_dpdk_context.yaml
+++ b/samples/vnf_samples/nsut/ping/tc_ping_ovs_dpdk_context.yaml
@@ -22,13 +22,13 @@ scenarios:
   topology: ping_tg_topology.yaml  # TODO: look in relative path where the tc.yaml is found
 
   nodes:  # This section is copied from pod.xml or resolved via Heat
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   vnf_options:
-    tg__1:
-      target_ip: pingvnf__1.xe0.local_ip  # TODO: resolve to config vars
-    vnf__1:
+    tg__0:
+      target_ip: pingvnf__0.xe0.local_ip  # TODO: resolve to config vars
+    vnf__0:
       target_ip: pinggen__1.xe1.local_ip  # TODO: resolve to config vars
   runner:
     type: Duration
diff --git a/samples/vnf_samples/nsut/prox/baremetal/throughput/tc_ipv4_1flow_64B_packetsize.yaml b/samples/vnf_samples/nsut/prox/baremetal/throughput/tc_ipv4_1flow_64B_packetsize.yaml
index e8ad24443..1fe2ed943 100644
--- a/samples/vnf_samples/nsut/prox/baremetal/throughput/tc_ipv4_1flow_64B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/baremetal/throughput/tc_ipv4_1flow_64B_packetsize.yaml
@@ -19,8 +19,8 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: "../../prox-tg-topology.yaml"
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/ovs-dpdk/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml b/samples/vnf_samples/nsut/prox/ovs-dpdk/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml
index 4695f0bfe..73fea8122 100644
--- a/samples/vnf_samples/nsut/prox/ovs-dpdk/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml
+++ b/samples/vnf_samples/nsut/prox/ovs-dpdk/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml
@@ -22,9 +22,9 @@ scenarios:
   topology: ../../acl-tg-topology-http.yaml
 
   nodes:
-    vnf__1: vnf.yardstick
-    tg__1: trafficgen_1.yardstick
-    tg__2: trafficgen_2.yardstick
+    vnf__0: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    tg__1: trafficgen_2.yardstick
 
   options:
     acl:
diff --git a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml
index f08289de9..0ca0005b2 100644
--- a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml
@@ -19,9 +19,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml
index 92f367855..d51b42f84 100644
--- a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml
@@ -19,9 +19,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml
index bc6ea4d2b..37da8e6c7 100644
--- a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml
@@ -19,9 +19,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml
index 05bf56fb7..cbe3e97ae 100644
--- a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml
@@ -19,9 +19,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml
index d560f56cf..707b46e7f 100644
--- a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml
@@ -19,9 +19,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml
index 68fdf96e4..b1003df3d 100644
--- a/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/ovs-dpdk/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml
@@ -19,9 +19,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/prox-tg-topology-1.yaml b/samples/vnf_samples/nsut/prox/prox-tg-topology-1.yaml
index b65d9d94b..ee7909b3b 100644
--- a/samples/vnf_samples/nsut/prox/prox-tg-topology-1.yaml
+++ b/samples/vnf_samples/nsut/prox/prox-tg-topology-1.yaml
@@ -20,30 +20,30 @@ nsd:nsd-catalog:
         description: prox-tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_prox_tpl-1.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/prox_vnf-1.yaml
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/prox/prox-tg-topology-2.yaml b/samples/vnf_samples/nsut/prox/prox-tg-topology-2.yaml
index dc19136cd..9421935a9 100644
--- a/samples/vnf_samples/nsut/prox/prox-tg-topology-2.yaml
+++ b/samples/vnf_samples/nsut/prox/prox-tg-topology-2.yaml
@@ -20,30 +20,30 @@ nsd:nsd-catalog:
         description: prox-tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_prox_tpl-2.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/prox_vnf-2.yaml
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/prox/prox-tg-topology-4.yaml b/samples/vnf_samples/nsut/prox/prox-tg-topology-4.yaml
index 17fe403b2..eda239e3b 100644
--- a/samples/vnf_samples/nsut/prox/prox-tg-topology-4.yaml
+++ b/samples/vnf_samples/nsut/prox/prox-tg-topology-4.yaml
@@ -20,50 +20,50 @@ nsd:nsd-catalog:
         description: prox-tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_prox_tpl-4.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/prox_vnf-4.yaml
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
-        -   id: public2
-            name: vnf__1 to tg__1 link 3
+                vnfd-id-ref: tg__0
+        -   id: downlink_1
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe2
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe2
-                vnfd-id-ref: tg__1
-        -   id: public3
-            name: vnf__1 to tg__1 link 4
+                vnfd-id-ref: tg__0
+        -   id: downlink_2
+            name: vnf__0 to tg__0 link 3
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe3
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe3
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/prox/sriov/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml b/samples/vnf_samples/nsut/prox/sriov/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml
index b98ffc51c..15892b886 100644
--- a/samples/vnf_samples/nsut/prox/sriov/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml
+++ b/samples/vnf_samples/nsut/prox/sriov/http_tests/tc_FileSize-1K_Requests-1M_Concurrency-100.yaml
@@ -17,9 +17,9 @@ scenarios:
   topology: ../../acl-tg-topology-http.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
 
   options:
     acl:
diff --git a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml
index bc7891e80..1238ed41c 100644
--- a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_1518B_packetsize.yaml
@@ -14,9 +14,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml
index e3a105b0f..059a6502f 100644
--- a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_64B_packetsize.yaml
@@ -14,9 +14,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml
index 6d89feea0..b6aa48a0e 100644
--- a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_1rule_1flow_IMIX_packetsize.yaml
@@ -14,9 +14,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml
index 571f4f47b..baa4b5997 100644
--- a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_1518B_packetsize.yaml
@@ -14,9 +14,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml
index c70846566..590150602 100644
--- a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_64B_packetsize.yaml
@@ -14,9 +14,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml
index 026719799..517dd9024 100644
--- a/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml
+++ b/samples/vnf_samples/nsut/prox/sriov/throughput/tc_ipv4_worstcaserules_1flow_IMIX_packetsize.yaml
@@ -14,9 +14,9 @@ scenarios:
   traffic_profile: "../../../../traffic_profiles/ipv4_throughput.yaml"
   topology: ../../acl-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   tc_options:
     rfc2544:
       allowed_drop_rate: 0.8 - 1
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-2.yaml
index 7ced79c7b..4b51998f4 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-2.yaml
@@ -22,18 +22,18 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_acl-2.cfg"
       prox_args:
         "-t": ""
       prox_files: "configs/acl_rules-2.lua"
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_acl-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-4.yaml
index e9def4cc7..ef9eaf79b 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_acl-4.yaml
@@ -22,18 +22,18 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_acl-4.cfg"
       prox_args:
         "-t": ""
       prox_files: "configs/acl_rules-2.lua"
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_acl-4.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_binsearch.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_binsearch.yaml
index 0173fdc3e..4cc383636 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_binsearch.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_binsearch.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v035/build/prox
       prox_config: "configs/handle_none-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v035/build/prox
       prox_config: "configs/gen_all-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_buffering-1.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_buffering-1.yaml
index 6344b415f..7b28a923b 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_buffering-1.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_buffering-1.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-1.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_buffering-1.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_buffering-1.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-2.yaml
index d4672e839..49a079ab8 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-2.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-4.yaml
index e6bcac40b..a0aec0160 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd-4.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd-4.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd-4.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-2.yaml
index 9ebfceb73..101fb9dd3 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-2.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd_pktTouch-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd_pktTouch-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-4.yaml
index e8ba5ef9a..5bc22874c 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l2fwd_pktTouch-4.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd_pktTouch-4.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd_pktTouch-4.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-2.yaml
index f6dc7310e..b3ed8bb58 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-2.yaml
@@ -22,11 +22,11 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l3fwd-2.cfg"
       prox_args:
@@ -34,7 +34,7 @@ scenarios:
       prox_files:
         "configs/ipv4.lua" : ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l3fwd-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-4.yaml
index 4d37f391f..9d50566e7 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_l3fwd-4.yaml
@@ -22,11 +22,11 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l3fwd-4.cfg"
       prox_args:
@@ -34,7 +34,7 @@ scenarios:
       prox_files:
         "configs/ipv4.lua" : ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l3fwd-4.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-2.yaml
index 59f279529..2994ee378 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-2.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_mpls_tag_untag-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_mpls_tag_untag-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-4.yaml
index 11db293b7..6ed8aed3a 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_mpls_tagging-4.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_mpls_tag_untag-4.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_mpls_tag_untag-4.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_ramp.yaml b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_ramp.yaml
index c21266cef..fc28b929a 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_baremetal_ramp.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_baremetal_ramp.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v035/build/prox
       prox_config: "configs/handle_none-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v035/build/prox
       prox_config: "configs/gen_all-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context.yaml
index 67552ec88..7834a5c9b 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v035/build/prox
       prox_config: "configs/l3-swap-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v035/build/prox
       prox_config: "configs/l3-gen-2.cfg"
       prox_args:
@@ -76,7 +76,7 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-2.yaml
index 5310a5c8a..123cec976 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-2.yaml
@@ -22,18 +22,18 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_acl-2.cfg"
       prox_args:
         "-t": ""
       prox_files: "configs/acl_rules-2.lua"
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_acl-2.cfg"
       prox_args:
@@ -77,13 +77,13 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-4.yaml
index 5ed96736c..9ede5a060 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_acl-4.yaml
@@ -22,18 +22,18 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_acl-4.cfg"
       prox_args:
         "-t": ""
       prox_files: "configs/acl_rules-2.lua"
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_acl-4.cfg"
       prox_args:
@@ -77,25 +77,25 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe2:
       cidr: '10.0.4.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe3:
       cidr: '10.0.5.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_buffering-1.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_buffering-1.yaml
index 43742c383..a62fa5f2c 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_buffering-1.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_buffering-1.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-1.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_buffering-1.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_buffering-1.cfg"
       prox_args:
@@ -74,7 +74,7 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-2.yaml
index 270ff0411..6193fd3fb 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-2.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd-2.cfg"
       prox_args:
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-4.yaml
index 0650a0966..881bcfb0e 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd-4.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd-4.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd-4.cfg"
       prox_args:
@@ -73,25 +73,25 @@ context:
       cidr: '10.0.1.0/24'
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe2:
       cidr: '10.0.4.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe3:
       cidr: '10.0.5.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-2.yaml
index 20cf43d70..48a85d4f3 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-2.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd_pktTouch-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd_pktTouch-2.cfg"
       prox_args:
@@ -73,13 +73,13 @@ context:
       cidr: '10.0.1.0/24'
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-4.yaml
index 570bdd0fb..5bc06e8c2 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l2fwd_pktTouch-4.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_l2fwd_pktTouch-4.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_l2fwd_pktTouch-4.cfg"
       prox_args:
@@ -73,25 +73,25 @@ context:
       cidr: '10.0.1.0/24'
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe2:
       cidr: '10.0.4.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe3:
       cidr: '10.0.5.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-2.yaml
index 068f0a2da..c7a7aa881 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-2.yaml
@@ -22,11 +22,11 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037.1/build/prox
       prox_config: "configs/handle_l3fwd-2.cfg"
       prox_args:
@@ -34,7 +34,7 @@ scenarios:
       prox_files:
         "configs/ipv4.lua" : ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037.1/build/prox
       prox_config: "configs/gen_l3fwd-2.cfg"
       prox_args:
@@ -77,13 +77,13 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
\ No newline at end of file
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-4.yaml
index d51cd31a7..f5172d545 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_l3fwd-4.yaml
@@ -22,11 +22,11 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037.1/build/prox
       prox_config: "configs/handle_l3fwd-4.cfg"
       prox_args:
@@ -34,7 +34,7 @@ scenarios:
       prox_files:
         "configs/ipv4.lua" : ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037.1/build/prox
       prox_config: "configs/gen_l3fwd-4.cfg"
       prox_args:
@@ -77,25 +77,25 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe2:
       cidr: '10.0.4.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe3:
       cidr: '10.0.5.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
\ No newline at end of file
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-2.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-2.yaml
index 0f7119514..10d0984c0 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-2.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-2.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-2.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_mpls_tag_untag-2.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_mpls_tag_untag-2.cfg"
       prox_args:
@@ -75,13 +75,13 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-4.yaml b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-4.yaml
index 4b3bd789a..75555ccc6 100644
--- a/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-4.yaml
+++ b/samples/vnf_samples/nsut/prox/tc_prox_heat_context_mpls_tagging-4.yaml
@@ -22,17 +22,17 @@ scenarios:
   topology: prox-tg-topology-4.yaml
 
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
 
   options:
-    vnf__1:
+    vnf__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/handle_mpls_tag_untag-4.cfg"
       prox_args:
         "-t": ""
 
-    tg__1:
+    tg__0:
       prox_path: /root/dppd-PROX-v037/build/prox
       prox_config: "configs/gen_mpls_tag_untag-4.cfg"
       prox_args:
@@ -75,25 +75,25 @@ context:
       external_network: "yardstick-public"
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe2:
       cidr: '10.0.4.0/24'
-      vld_id: public
+      vld_id: downlink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
     xe3:
       cidr: '10.0.5.0/24'
-      vld_id: private
+      vld_id: uplink
       allowed_address_pairs:
         - ip_address:
             '0.0.0.0/0'
diff --git a/samples/vnf_samples/nsut/udp_replay/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/udp_replay/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml
index 8640df9a0..78e92ce74 100644
--- a/samples/vnf_samples/nsut/udp_replay/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/udp_replay/tc_baremetal_rfc2544_ipv4_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput_cgnapt.yaml
   topology: udp_replay-vnf-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       nfvi_enable: True
   runner:
     type: Iteration
diff --git a/samples/vnf_samples/nsut/udp_replay/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/udp_replay/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml
index 09a20c33d..c8654a5a2 100644
--- a/samples/vnf_samples/nsut/udp_replay/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/udp_replay/tc_heat_rfc2544_ipv4_1flow_64B_trex.yaml
@@ -19,14 +19,14 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: udp_replay-vnf-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     packetsize: 64
     traffic_type: 4
-    vnf__1:
+    vnf__0:
        hw_csum: false
-    tg__1:
+    tg__0:
        hw_csum: false
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
@@ -67,13 +67,13 @@ context:
       cidr: '10.0.1.0/24'
     xe0:
       cidr: '10.0.2.0/24'
-      vld_id: public
+      vld_id: downlink
       enable_dhcp: False
       gateway_ip: null
       port_security_enabled: False
     xe1:
       cidr: '10.0.3.0/24'
-      vld_id: private
+      vld_id: uplink
       enable_dhcp: False
       gateway_ip: null
       port_security_enabled: False
diff --git a/samples/vnf_samples/nsut/udp_replay/udp_replay-vnf-topology.yaml b/samples/vnf_samples/nsut/udp_replay/udp_replay-vnf-topology.yaml
index b13de7e90..b76f90b49 100644
--- a/samples/vnf_samples/nsut/udp_replay/udp_replay-vnf-topology.yaml
+++ b/samples/vnf_samples/nsut/udp_replay/udp_replay-vnf-topology.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: 3tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/udp_replay_vnf.yaml      #VNF type
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/vfw/ixia_traffic.cfg b/samples/vnf_samples/nsut/vfw/ixia_traffic.cfg
index f749865c5..3f7e33471 100644
--- a/samples/vnf_samples/nsut/vfw/ixia_traffic.cfg
+++ b/samples/vnf_samples/nsut/vfw/ixia_traffic.cfg
@@ -1,5 +1,5 @@
 {
-    "private_1": {
+    "uplink_0": {
         "id": 1,
         "bidir": "False",
         "duration": 60,
@@ -23,7 +23,7 @@
         },
         "traffic_type": "continuous"
     },
-    "public_1": {
+    "downlink_0": {
         "id": 2,
         "bidir": "False",
         "duration": 60,
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
index 0897fed18..5b2dae20f 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_http_ixload_1b_Requests-65000_Concurrency.yaml
@@ -19,8 +19,8 @@ scenarios:
   traffic_profile: "../../traffic_profiles/http_tests/HTTP_1b-requests_65000_concurrency.yaml"
   topology: vfw_vnf_topology_ixload.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
@@ -28,7 +28,7 @@ scenarios:
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
index 9808398f2..b6eb5c191 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency.yaml"
   topology: vfw_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia_scale_up.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia_scale_up.yaml
index 5a90acdf9..161a27678 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia_scale_up.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_ixia_scale_up.yaml
@@ -20,20 +20,20 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency.yaml"
   topology: vfw_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1000
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       nfvi_enable: True
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: {{worker_thread}}}
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
index b0150d851..249511418 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: vfw-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml
index 6a55bfb77..e58130ab6 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_corelated_traffic.yaml
@@ -19,22 +19,22 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: vfw-tg-topology-3node.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__2': 'xe0'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__1': 'xe0'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
       correlated_traffic: true
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml
index 9773c3adb..8b21c27f0 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_ipv4_1rule_1flow_64B_trex_scale_up.yaml
@@ -20,20 +20,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: vfw-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'HW', lb_count: 1, worker_config: '1C/1T', worker_threads: {{worker_thread}}}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_ixia.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_ixia.yaml
index 4656cc85f..1e2c8e53f 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_ixia.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_ixia.yaml
@@ -19,21 +19,21 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency.yaml"
   topology: vfw_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
       latency: true
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml
index d11f097c5..38ed9282a 100644
--- a/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_baremetal_rfc2544_with_latency_ipv4_1rule_1flow_64B_trex.yaml
@@ -19,21 +19,21 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: vfw-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
       latency: true
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
       nfvi_enable: True
diff --git a/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml b/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
index 06b19ebad..d00b443d5 100644
--- a/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_ixia.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ixia_ipv4_latency.yaml
   topology: vfw_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick1
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick1
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
   runner:
@@ -68,14 +68,14 @@ contexts:
         cidr: '10.0.1.0/24'
       xe0:
         cidr: '10.0.2.0/24'
-        vld_id: public_1
+        vld_id: downlink_0
         gateway_ip: 'null'
         provider: true
         physical_network: phystenant1
         port_security_enabled: False
       xe1:
         cidr: '10.0.3.0/24'
-        vld_id: private_1
+        vld_id: uplink_0
         gateway_ip: 'null'
         provider: true
         physical_network: phystenant2
diff --git a/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
index cab0b9a14..86974d270 100644
--- a/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_heat_external_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: vfw-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.baremetal
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.baremetal
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
   runner:
diff --git a/samples/vnf_samples/nsut/vfw/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml b/samples/vnf_samples/nsut/vfw/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
index 13fb850ab..16815bf45 100644
--- a/samples/vnf_samples/nsut/vfw/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
+++ b/samples/vnf_samples/nsut/vfw/tc_heat_rfc2544_ipv4_1rule_1flow_64B_trex.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: ../../traffic_profiles/ipv4_throughput.yaml
   topology: vfw-tg-topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       rules: acl_1rule.yaml
       vnf_config: {lb_config: 'SW', lb_count: 1, worker_config: '1C/1T', worker_threads: 1}
   runner:
diff --git a/samples/vnf_samples/nsut/vfw/vfw-tg-topology-3node.yaml b/samples/vnf_samples/nsut/vfw/vfw-tg-topology-3node.yaml
index e1496efad..c1b439a03 100644
--- a/samples/vnf_samples/nsut/vfw/vfw-tg-topology-3node.yaml
+++ b/samples/vnf_samples/nsut/vfw/vfw-tg-topology-3node.yaml
@@ -20,34 +20,43 @@ nsd:nsd-catalog:
         description: 3tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vfw_vnf.yaml      #VNF type
         -   member-vnf-index: '3'
-            vnfd-id-ref: tg__2
+            vnfd-id-ref: tg__1
             VNF model: ../../vnf_descriptors/udp_replay_vnf.yaml      #VNF type
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
-
-        -   id: public_1
-            name: vnf__1 to tg__2 link 2
+                vnfd-id-ref: vnf__0
+        -   id: uplink_1
+            name: tg__0 to vnf__0 link 2
+            type: ELAN
+            vnfd-connection-point-ref:
+            -   member-vnf-index-ref: '1'
+                vnfd-connection-point-ref: xe1
+                vnfd-id-ref: tg__0
+            -   member-vnf-index-ref: '1'
+                vnfd-connection-point-ref: xe1
+                vnfd-id-ref: tg__0
+        -   id: downlink_0
+            name: vnf__0 to tg__1 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '3'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__2
+                vnfd-id-ref: tg__1
diff --git a/samples/vnf_samples/nsut/vfw/vfw-tg-topology-4port.yaml b/samples/vnf_samples/nsut/vfw/vfw-tg-topology-4port.yaml
index 7babb820a..93e5bf7a1 100644
--- a/samples/vnf_samples/nsut/vfw/vfw-tg-topology-4port.yaml
+++ b/samples/vnf_samples/nsut/vfw/vfw-tg-topology-4port.yaml
@@ -27,7 +27,7 @@ nsd:nsd-catalog:
             VNF model: ../../vnf_descriptors/vfw_vnf.yaml      #VNF type
 
         vld:
-        -   id: private_0
+        -   id: uplink_0
             name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
@@ -37,7 +37,7 @@ nsd:nsd-catalog:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
                 vnfd-id-ref: vnf__0
-        -   id: public_0
+        -   id: downlink_0
             name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
@@ -48,7 +48,7 @@ nsd:nsd-catalog:
                 vnfd-connection-point-ref: xe1
                 vnfd-id-ref: tg__0
 
-        -   id: private_1
+        -   id: uplink_1
             name: tg__0 to vnf__0 link 3
             type: ELAN
             vnfd-connection-point-ref:
@@ -58,7 +58,7 @@ nsd:nsd-catalog:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe2
                 vnfd-id-ref: vnf__0
-        -   id: public_1
+        -   id: downlink_1
             name: vnf__0 to tg__0 link 4
             type: ELAN
             vnfd-connection-point-ref:
diff --git a/samples/vnf_samples/nsut/vfw/vfw-tg-topology.yaml b/samples/vnf_samples/nsut/vfw/vfw-tg-topology.yaml
index b224ec14d..2a76df5c5 100644
--- a/samples/vnf_samples/nsut/vfw/vfw-tg-topology.yaml
+++ b/samples/vnf_samples/nsut/vfw/vfw-tg-topology.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: 3tg-topology
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml      #VNF type
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vfw_vnf.yaml      #VNF type
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixia.yaml b/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixia.yaml
index 3585ba6d9..6c722d63b 100644
--- a/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixia.yaml
+++ b/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixia.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with vFW VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/ixia_rfc2544_tpl.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vfw_vnf.yaml
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1
+                vnfd-id-ref: vnf__0
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1
+                vnfd-id-ref: tg__0
diff --git a/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixload.yaml b/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixload.yaml
index 9e7062321..f14de0a74 100644
--- a/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixload.yaml
+++ b/samples/vnf_samples/nsut/vfw/vfw_vnf_topology_ixload.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with HTTP and vFW VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_ixload.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vfw_vnf.yaml
 
         vld:
-        -   id: private_1
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink_0
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                   # HTTP Client
+                vnfd-id-ref: tg__0                   # HTTP Client
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  # VNF
+                vnfd-id-ref: vnf__0                  # VNF
 
-        -   id: public_1
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink_0
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  # HTTP Server
+                vnfd-id-ref: vnf__0                  # HTTP Server
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1                   # VFW VNF
+                vnfd-id-ref: tg__0                   # VFW VNF
diff --git a/samples/vnf_samples/nsut/vpe/ixia_traffic.cfg b/samples/vnf_samples/nsut/vpe/ixia_traffic.cfg
index cdeee6e35..a0cf372cf 100644
--- a/samples/vnf_samples/nsut/vpe/ixia_traffic.cfg
+++ b/samples/vnf_samples/nsut/vpe/ixia_traffic.cfg
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 {
-    "private_1": {
+    "uplink_0": {
         "id": 1,
         "bidir": "False",
         "duration": 60,
@@ -36,7 +36,7 @@
         },
         "traffic_type": "continuous"
     },
-    "public_1": {
+    "downlink_0": {
         "id": 2,
         "bidir": "False",
         "duration": 60,
diff --git a/samples/vnf_samples/nsut/vpe/tc_baremetal_http_ipv4_ixload.yaml b/samples/vnf_samples/nsut/vpe/tc_baremetal_http_ipv4_ixload.yaml
index a40179390..1914f1a09 100644
--- a/samples/vnf_samples/nsut/vpe/tc_baremetal_http_ipv4_ixload.yaml
+++ b/samples/vnf_samples/nsut/vpe/tc_baremetal_http_ipv4_ixload.yaml
@@ -19,18 +19,18 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ipv4_throughput_vpe.yaml"
   topology: vpe_vnf_topology_ixload.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
-    vnf__1:
+    vnf__0:
       nfvi_enable: True
       vnf_config: vpe_config
   runner:
diff --git a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_1518B.yaml b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_1518B.yaml
index bff9743e0..42c0de85a 100644
--- a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_1518B.yaml
+++ b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_1518B.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ipv4_throughput_vpe.yaml"
   topology: vpe_vnf_topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {1518B: 100}
       public: {1518B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       nfvi_enable: True
       vnf_config: vpe_config
   runner:
diff --git a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B.yaml b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B.yaml
index 50874ac5c..ffb2b41ac 100644
--- a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B.yaml
+++ b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ipv4_throughput_vpe.yaml"
   topology: vpe_vnf_topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       nfvi_enable: True
       vnf_config: vpe_config
   runner:
diff --git a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml
index 394d07861..0d732a8de 100644
--- a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml
+++ b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_ixia.yaml
@@ -19,20 +19,20 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ixia_ipv4_latency_vpe.yaml"
   topology: vpe_vnf_topology_ixia.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       nfvi_enable: True
       vnf_config: vpe_config
   runner:
diff --git a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml
index 972d58bdf..b04f6aa97 100644
--- a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml
+++ b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_64B_trex_corelated_traffic.yaml
@@ -19,22 +19,22 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ipv4_throughput_vpe.yaml"
   topology: vpe_vnf_topology-3node.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
-    tg__2: trafficgen_2.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
+    tg__1: trafficgen_2.yardstick
   options:
     framesize:
       private: {64B: 100}
       public: {64B: 100}
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__2': 'xe0'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__1': 'xe0'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
       correlated_traffic: true
-    vnf__1:
+    vnf__0:
       nfvi_enable: True
       vnf_config: vpe_config
   runner:
diff --git a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_IMIX.yaml b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_IMIX.yaml
index 092f068c9..8bdf39e38 100644
--- a/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_IMIX.yaml
+++ b/samples/vnf_samples/nsut/vpe/tc_baremetal_rfc2544_ipv4_1flow_IMIX.yaml
@@ -19,21 +19,21 @@ scenarios:
   traffic_profile: "../../traffic_profiles/ipv4_throughput_vpe.yaml"
   topology: vpe_vnf_topology.yaml
   nodes:
-    tg__1: trafficgen_1.yardstick
-    vnf__1: vnf.yardstick
+    tg__0: trafficgen_1.yardstick
+    vnf__0: vnf.yardstick
   options:
     framesize:
       private: {64B: 5, 128B: 11, 256B: 16, 373B: 10, 570B: 35, 1400B: 10, 1500B: 13}
       public: {64B: 5, 128B: 3, 256B: 4, 373B: 6, 570B: 8, 1400B: 36, 1500B: 38}
 
     flow:
-      src_ip: [{'tg__1': 'xe0'}]
-      dst_ip: [{'tg__1': 'xe1'}]
+      src_ip: [{'tg__0': 'xe0'}]
+      dst_ip: [{'tg__0': 'xe1'}]
       count: 1
     traffic_type: 4
     rfc2544:
       allowed_drop_rate: 0.0001 - 0.0001
-    vnf__1:
+    vnf__0:
       nfvi_enable: True
       vnf_config: vpe_config
   runner:
diff --git a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology-3node.yaml b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology-3node.yaml
index c56a7e173..8a1d335de 100644
--- a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology-3node.yaml
+++ b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology-3node.yaml
@@ -20,34 +20,34 @@ nsd:nsd-catalog:
         description: scenario with VPE,L3fwd and VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml       #tg_vpe_upstream.yaml   #VPE VNF
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vpe_vnf.yaml    #tg_l3fwd.yaml #tg_trex_tpl.yaml       #TREX
         -   member-vnf-index: '3'
-            vnfd-id-ref: tg__2
+            vnfd-id-ref: tg__1
             VNF model: ../../vnf_descriptors/udp_replay_vnf.yaml       #tg_vpe_upstream.yaml   #VPE VNF
 
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                  #TREX
+                vnfd-id-ref: tg__0                  #TREX
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  #VNF
+                vnfd-id-ref: vnf__0                  #VNF
 
-        -   id: public
-            name: vnf__1 to tg__2 link 2
+        -   id: downlink
+            name: vnf__0 to tg__1 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  #L3fwd
+                vnfd-id-ref: vnf__0                  #L3fwd
             -   member-vnf-index-ref: '3'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__2                  #VPE VNF
+                vnfd-id-ref: tg__1                  #VPE VNF
diff --git a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology.yaml b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology.yaml
index 0de4b6e79..5ad45028a 100644
--- a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology.yaml
+++ b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with VPE,L3fwd and VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_rfc2544_tpl.yaml       #tg_vpe_upstream.yaml   #VPE VNF
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vpe_vnf.yaml    #tg_l3fwd.yaml #tg_trex_tpl.yaml       #TREX
 
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                  #TREX
+                vnfd-id-ref: tg__0                  #TREX
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  #VNF
+                vnfd-id-ref: vnf__0                  #VNF
 
-        -   id: public
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  #L3fwd
+                vnfd-id-ref: vnf__0                  #L3fwd
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1                  #VPE VNF
+                vnfd-id-ref: tg__0                  #VPE VNF
diff --git a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixia.yaml b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixia.yaml
index 610805d3b..315a30845 100644
--- a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixia.yaml
+++ b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixia.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with VPE,L3fwd and VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/ixia_rfc2544_tpl.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vpe_vnf.yaml
 
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                  #TREX
+                vnfd-id-ref: tg__0                  #TREX
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  #VNF
+                vnfd-id-ref: vnf__0                  #VNF
 
-        -   id: public
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  #L3fwd
+                vnfd-id-ref: vnf__0                  #L3fwd
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1                  #VPE VNF
+                vnfd-id-ref: tg__0                  #VPE VNF
diff --git a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixload.yaml b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixload.yaml
index 5505a832b..aa1dc0d4f 100644
--- a/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixload.yaml
+++ b/samples/vnf_samples/nsut/vpe/vpe_vnf_topology_ixload.yaml
@@ -20,31 +20,31 @@ nsd:nsd-catalog:
         description: scenario with VPE,L3fwd and VNF
         constituent-vnfd:
         -   member-vnf-index: '1'
-            vnfd-id-ref: tg__1
+            vnfd-id-ref: tg__0
             VNF model: ../../vnf_descriptors/tg_ixload.yaml
         -   member-vnf-index: '2'
-            vnfd-id-ref: vnf__1
+            vnfd-id-ref: vnf__0
             VNF model: ../../vnf_descriptors/vpe_vnf.yaml
 
         vld:
-        -   id: private
-            name: tg__1 to vnf__1 link 1
+        -   id: uplink
+            name: tg__0 to vnf__0 link 1
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: tg__1                  #TREX
+                vnfd-id-ref: tg__0                  #TREX
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe0
-                vnfd-id-ref: vnf__1                  #VNF
+                vnfd-id-ref: vnf__0                  #VNF
 
-        -   id: public
-            name: vnf__1 to tg__1 link 2
+        -   id: downlink
+            name: vnf__0 to tg__0 link 2
             type: ELAN
             vnfd-connection-point-ref:
             -   member-vnf-index-ref: '2'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: vnf__1                  #L3fwd
+                vnfd-id-ref: vnf__0                  #L3fwd
             -   member-vnf-index-ref: '1'
                 vnfd-connection-point-ref: xe1
-                vnfd-id-ref: tg__1                  #VPE VNF
+                vnfd-id-ref: tg__0                  #VPE VNF
diff --git a/samples/vnf_samples/traffic_profiles/example.yaml b/samples/vnf_samples/traffic_profiles/example.yaml
index fc2501526..443fb88cf 100644
--- a/samples/vnf_samples/traffic_profiles/example.yaml
+++ b/samples/vnf_samples/traffic_profiles/example.yaml
@@ -150,8 +150,8 @@ public:
                 570B: {{get(imix_570B, 12) }}
                 1400B: {{get(imix_1400B, 12) }}
                 1518b: {{get(imix_1500B, 12) }}
-            srcmac: {{get(private.ipv4_1.dst_mac}} # xe0.local_mac
-            dstmac: {{get)private.ipv4_1.src_mac}} # xe0.dst_mac
+            srcmac: {{get(uplink.ipv4_1.dst_mac}} # xe0.local_mac
+            dstmac: {{get)uplink.ipv4_1.src_mac}} # xe0.dst_mac
             QinQ:
                 S-VLAN:
                     id: {{ get(flow.s_vlan_range, "0") }}
@@ -166,33 +166,33 @@ public:
 
         outer_l3v4:
             proto: {{ get(flow.outer_proto, "udp") }},
-            srcip4: {{ get(private.ipv4_1.outer_l3v4.dstip4) }}
-            dstip4: {{ get(private.ipv4_1.outer_l3v4.srcip4) }}
+            srcip4: {{ get(uplink.ipv4_1.outer_l3v4.dstip4) }}
+            dstip4: {{ get(uplink.ipv4_1.outer_l3v4.srcip4) }}
             ttl: 32
             dscp:  {{ get(flow.tos, 0) }}
 
         outer_l4:
-            srcport: {{ get(private.ipv4_1.outer_l4.dstport) }}
-            dstport: {{ get(private.ipv4_1.outer_l4.srcport) }}
+            srcport: {{ get(uplink.ipv4_1.outer_l4.dstport) }}
+            dstport: {{ get(uplink.ipv4_1.outer_l4.srcport) }}
             vni: {{ get(flow.vxlan_vni, "2345") }} #optional
             inner_l2: #optional
-                srcmac: {{ get(private.ipv4_1.outer_l4.inner_l2.dstmac) }}
-                dstmac: {{ get(private.ipv4_1.outer_l4.inner_l2.srcmac) }}
+                srcmac: {{ get(uplink.ipv4_1.outer_l4.inner_l2.dstmac) }}
+                dstmac: {{ get(uplink.ipv4_1.outer_l4.inner_l2.srcmac) }}
 
         inner_l3v4: #optional
             proto: {{ get(flow.inner_proto, "udp") }},
-            srcip4: {{ get(private.ipv4_1.inner_l3v4.dstip4) }}
-            dstip4: {{ get(private.ipv4_1.inner_l3v4.srcip4) }}
+            srcip4: {{ get(uplink.ipv4_1.inner_l3v4.dstip4) }}
+            dstip4: {{ get(uplink.ipv4_1.inner_l3v4.srcip4) }}
             ttl: 32
             dscp:  {{ get(flow.inner_tos, 0) }}
 
         inner_l3v6:
             proto: {{ get(flow.inner_proto, "udp") }},
-            srcip6: {{ get(private.ipv4_1.inner_l3v6.dstip6) }}
-            dstip6: {{ get(private.ipv4_1.inner_l3v6.srcip6) }}
+            srcip6: {{ get(uplink.ipv4_1.inner_l3v6.dstip6) }}
+            dstip6: {{ get(uplink.ipv4_1.inner_l3v6.srcip6) }}
             ttl: 32
             tc: {{ get(flow.inner_tos, 0) }}
 
         inner_l4:
-            srcport: {{ get(private.ipv4_1.inner_l4.dstport) }}
-            dstport: {{ get(private.ipv4_1.inner_l4.srcport) }}
+            srcport: {{ get(uplink.ipv4_1.inner_l4.dstport) }}
+            dstport: {{ get(uplink.ipv4_1.inner_l4.srcport) }}
diff --git a/samples/vnf_samples/traffic_profiles/http_tests/HTTP_1b-requests_65000_concurrency.yaml b/samples/vnf_samples/traffic_profiles/http_tests/HTTP_1b-requests_65000_concurrency.yaml
index a7394abf1..5da20ffcc 100644
--- a/samples/vnf_samples/traffic_profiles/http_tests/HTTP_1b-requests_65000_concurrency.yaml
+++ b/samples/vnf_samples/traffic_profiles/http_tests/HTTP_1b-requests_65000_concurrency.yaml
@@ -6,7 +6,7 @@ traffic_profile:
   traffic_type: TrafficProfileGenericHTTP
 
 #http client specific values
-private_1:
+uplink_0:
     http_no_requests: "1000"                # number of http iterations
     http_concurency: "65000"                  # number of threads to be run
     http_locator:  "/1B.bin"              # http locator to be read
@@ -17,7 +17,7 @@ private_1:
     attacker_tests: "False"                 # True : If attacker Test, False : Otherwise
 
 #http server side
-public_1:
+downlink_0:
     http_locator_image_size: "1B"      # image size requested by http client
     http_bind_address: "152.40.40.20"   # where address is bound
     http_bind_port: "9004"              # when port is bound
diff --git a/samples/vnf_samples/traffic_profiles/ipv4_throughput.yaml b/samples/vnf_samples/traffic_profiles/ipv4_throughput.yaml
index 6e0c693a5..7d51122f4 100644
--- a/samples/vnf_samples/traffic_profiles/ipv4_throughput.yaml
+++ b/samples/vnf_samples/traffic_profiles/ipv4_throughput.yaml
@@ -45,24 +45,24 @@ traffic_profile:
   # that specifies a range (e.g. ipv4 address, port)
 
 
-private_1:
+uplink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.64B', '0') }}"
-                128B: "{{ get(imix, 'imix.private.128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.373B', '0') }}"
-                512B: "{{ get(imix, 'imix.private.512B', '0') }}"
-                570B: "{{get(imix, 'imix.private.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.private.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.1518B', '0') }}"
+                64B: "{{get(imix, 'imix.uplink.64B', '0') }}"
+                128B: "{{get(imix, 'imix.uplink.128B', '0') }}"
+                256B: "{{get(imix, 'imix.uplink.256B', '0') }}"
+                373B: "{{get(imix, 'imix.uplink.373B', '0') }}"
+                512B: "{{get(imix, 'imix.uplink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.uplink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
-            srcip4: "{{get(flow, 'flow.src_ip_0', '1.1.1.1-1.1.255.255') }}"
-            dstip4: "{{get(flow, 'flow.dst_ip_0', '90.90.1.1-90.90.255.255') }}"
+            srcip4: "{{get(flow, 'flow.src_ip_0', '10.0.2.1-10.0.2.255') }}"
+            dstip4: "{{get(flow, 'flow.dst_ip_0', '10.0.3.1-10.0.3.255') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
             ttl: 32
             dscp: 0
@@ -70,24 +70,24 @@ private_1:
             srcport: "{{get(flow, 'flow.src_port_0', '1234-4321') }}"
             dstport: "{{get(flow, 'flow.dst_port_0', '2001-4001') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_1:
+downlink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.public.64B', '0') }}"
-                128B: "{{ get(imix, 'imix.public.128B', '0') }}"
-                256B: "{{ get(imix, 'imix.public.256B', '0') }}"
-                373b: "{{ get(imix, 'imix.public.373B', '0') }}"
-                512B: "{{ get(imix, 'imix.public.512B', '0') }}"
-                570B: "{{get(imix, 'imix.public.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.public.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.public.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.public.1518B', '0') }}"
+                64B: "{{ get(imix, 'imix.downlink.64B', '0') }}"
+                128B: "{{ get(imix, 'imix.downlink.128B', '0') }}"
+                256B: "{{ get(imix, 'imix.downlink.256B', '0') }}"
+                373b: "{{ get(imix, 'imix.downlink.373B', '0') }}"
+                512B: "{{ get(imix, 'imix.downlink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.downlink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.downlink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.downlink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.downlink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
-            srcip4: "{{get(flow, 'flow.dst_ip_0', '90.90.1.1-90.90.255.255') }}"
-            dstip4: "{{get(flow, 'flow.src_ip_0', '1.1.1.1-1.1.255.255') }}"
+            srcip4: "{{get(flow, 'flow.dst_ip_0', '10.0.3.1-10.0.3.255') }}"
+            dstip4: "{{get(flow, 'flow.src_ip_0', '10.0.2.1-10.0.2.255') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
             ttl: 32
             dscp: 0
diff --git a/samples/vnf_samples/traffic_profiles/ipv4_throughput_cgnapt.yaml b/samples/vnf_samples/traffic_profiles/ipv4_throughput_cgnapt.yaml
index df04a93e5..60a78a0c6 100644
--- a/samples/vnf_samples/traffic_profiles/ipv4_throughput_cgnapt.yaml
+++ b/samples/vnf_samples/traffic_profiles/ipv4_throughput_cgnapt.yaml
@@ -45,19 +45,19 @@ traffic_profile:
   # that specifies a range (e.g. ipv4 address, port)
 
 
-private_1:
+uplink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{get(imix, 'imix.private.64B', '0') }}"
-                128B: "{{get(imix, 'imix.private.128B', '0') }}"
-                256B: "{{get(imix, 'imix.private.256B', '0') }}"
-                373B: "{{get(imix, 'imix.private.373B', '0') }}"
-                512B: "{{get(imix, 'imix.private.512B', '0') }}"
-                570B: "{{get(imix, 'imix.private.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.private.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.1518B', '0') }}"
+                64B: "{{get(imix, 'imix.uplink.64B', '0') }}"
+                128B: "{{get(imix, 'imix.uplink.128B', '0') }}"
+                256B: "{{get(imix, 'imix.uplink.256B', '0') }}"
+                373B: "{{get(imix, 'imix.uplink.373B', '0') }}"
+                512B: "{{get(imix, 'imix.uplink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.uplink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
@@ -70,19 +70,19 @@ private_1:
             srcport: "{{get(flow, 'flow.src_port_0', '1234-4321') }}"
             dstport: "{{get(flow, 'flow.dst_port_0', '2001-4001') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_1:
+downlink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.public.64B', '0') }}"
-                128B: "{{ get(imix, 'imix.public.128B', '0') }}"
-                256B: "{{ get(imix, 'imix.public.256B', '0') }}"
-                373b: "{{ get(imix, 'imix.public.373B', '0') }}"
-                512B: "{{ get(imix, 'imix.public.512B', '0') }}"
-                570B: "{{get(imix, 'imix.public.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.public.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.public.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.public.1518B', '0') }}"
+                64B: "{{ get(imix, 'imix.downlink.64B', '0') }}"
+                128B: "{{ get(imix, 'imix.downlink.128B', '0') }}"
+                256B: "{{ get(imix, 'imix.downlink.256B', '0') }}"
+                373b: "{{ get(imix, 'imix.downlink.373B', '0') }}"
+                512B: "{{ get(imix, 'imix.downlink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.downlink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.downlink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.downlink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.downlink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
diff --git a/samples/vnf_samples/traffic_profiles/ipv4_throughput_vpe.yaml b/samples/vnf_samples/traffic_profiles/ipv4_throughput_vpe.yaml
index da9bc40da..f42db932c 100644
--- a/samples/vnf_samples/traffic_profiles/ipv4_throughput_vpe.yaml
+++ b/samples/vnf_samples/traffic_profiles/ipv4_throughput_vpe.yaml
@@ -45,19 +45,19 @@ traffic_profile:
   # that specifies a range (e.g. ipv4 address, port)
 
 
-private_1:
+uplink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.64B', '0') }}"
-                128B: "{{ get(imix, 'imix.private.128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.373B', '0') }}"
-                512B: "{{ get(imix, 'imix.private.512B', '0') }}"
-                570B: "{{get(imix, 'imix.private.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.private.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.1518B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.64B', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.373B', '0') }}"
+                512B: "{{ get(imix, 'imix.uplink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.uplink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.1518B', '0') }}"
 
             QinQ:
                 S-VLAN:
@@ -81,17 +81,17 @@ private_1:
             srcport: "{{get(flow, 'flow.src_port_0', '0') }}"
             dstport: "{{get(flow, 'flow.dst_port_0', '0') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_1:
+downlink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
         outer_l3v4:
             proto: "tcp"
@@ -105,19 +105,19 @@ public_1:
             srcport: "{{get(flow, 'flow.dst_port_0', '0') }}"
             dstport: "{{get(flow, 'flow.src_port_0', '0') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-private_2:
+uplink_1:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.public.64B', '0') }}"
-                128B: "{{ get(imix, 'imix.public.128B', '0') }}"
-                256B: "{{ get(imix, 'imix.public.256B', '0') }}"
-                373b: "{{ get(imix, 'imix.public.373B', '0') }}"
-                512B: "{{ get(imix, 'imix.public.512B', '0') }}"
-                570B: "{{get(imix, 'imix.public.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.public.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.public.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.public.1518B', '0') }}"
+                64B: "{{ get(imix, 'imix.downlink.64B', '0') }}"
+                128B: "{{ get(imix, 'imix.downlink.128B', '0') }}"
+                256B: "{{ get(imix, 'imix.downlink.256B', '0') }}"
+                373b: "{{ get(imix, 'imix.downlink.373B', '0') }}"
+                512B: "{{ get(imix, 'imix.downlink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.downlink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.downlink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.downlink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.downlink.1518B', '0') }}"
 
             QinQ:
                 S-VLAN:
@@ -141,17 +141,17 @@ private_2:
             srcport: "{{get(flow, 'flow.src_port1', '0') }}"
             dstport: "{{get(flow, 'flow.dst_port1', '0') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_2:
+downlink_1:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
         outer_l3v4:
             proto: "tcp"
diff --git a/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency.yaml b/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency.yaml
index a008eb353..af74df2c9 100644
--- a/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency.yaml
+++ b/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency.yaml
@@ -31,19 +31,19 @@ traffic_profile:
   # that specifies a range (e.g. ipv4 address, port)
 
 
-private_1:
+uplink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{get(imix, 'imix.private.64B', '0') }}"
-                128B: "{{get(imix, 'imix.private.128B', '0') }}"
-                256B: "{{get(imix, 'imix.private.256B', '0') }}"
-                373b: "{{get(imix, 'imix.private.373B', '0') }}"
-                512B: "{{get(imix, 'imix.private.512B', '0') }}"
-                570B: "{{get(imix, 'imix.private.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.private.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.1518B', '0') }}"
+                64B: "{{get(imix, 'imix.uplink.64B', '0') }}"
+                128B: "{{get(imix, 'imix.uplink.128B', '0') }}"
+                256B: "{{get(imix, 'imix.uplink.256B', '0') }}"
+                373b: "{{get(imix, 'imix.uplink.373B', '0') }}"
+                512B: "{{get(imix, 'imix.uplink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.uplink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
@@ -56,19 +56,19 @@ private_1:
             srcport: "{{get(flow, 'flow.src_port_0', '1234') }}"
             dstport: "{{get(flow, 'flow.dst_port_0', '2001') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_1:
+downlink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{get(imix, 'imix.public.64B', '0') }}"
-                128B: "{{get(imix, 'imix.public.128B', '0') }}"
-                256B: "{{get(imix, 'imix.public.256B', '0') }}"
-                373b: "{{get(imix, 'imix.public.373B', '0') }}"
-                512B: "{{get(imix, 'imix.public.512B', '0') }}"
-                570B: "{{get(imix, 'imix.public.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.public.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.public.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.public.1518B', '0') }}"
+                64B: "{{get(imix, 'imix.downlink.64B', '0') }}"
+                128B: "{{get(imix, 'imix.downlink.128B', '0') }}"
+                256B: "{{get(imix, 'imix.downlink.256B', '0') }}"
+                373b: "{{get(imix, 'imix.downlink.373B', '0') }}"
+                512B: "{{get(imix, 'imix.downlink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.downlink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.downlink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.downlink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.downlink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
@@ -81,19 +81,19 @@ public_1:
             srcport: "{{get(flow, 'flow.src_port_0', '1234') }}"
             dstport: "{{get(flow, 'flow.dst_port_0', '2001') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-private_2:
+uplink_1:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{get(imix, 'imix.private.64B', '0') }}"
-                128B: "{{get(imix, 'imix.private.128B', '0') }}"
-                256B: "{{get(imix, 'imix.private.256B', '0') }}"
-                373b: "{{get(imix, 'imix.private.373B', '0') }}"
-                512B: "{{get(imix, 'imix.private.512B', '0') }}"
-                570B: "{{get(imix, 'imix.private.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.private.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.1518B', '0') }}"
+                64B: "{{get(imix, 'imix.uplink.64B', '0') }}"
+                128B: "{{get(imix, 'imix.uplink.128B', '0') }}"
+                256B: "{{get(imix, 'imix.uplink.256B', '0') }}"
+                373b: "{{get(imix, 'imix.uplink.373B', '0') }}"
+                512B: "{{get(imix, 'imix.uplink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.uplink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
@@ -106,19 +106,19 @@ private_2:
             srcport: "{{get(flow, 'flow.src_port1', '1234') }}"
             dstport: "{{get(flow, 'flow.dst_port1', '2001') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_2:
+downlink_1:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{get(imix, 'imix.public.64B', '0') }}"
-                128B: "{{get(imix, 'imix.public.128B', '0') }}"
-                256B: "{{get(imix, 'imix.public.256B', '0') }}"
-                373b: "{{get(imix, 'imix.public.373B', '0') }}"
-                512B: "{{get(imix, 'imix.public.512B', '0') }}"
-                570B: "{{get(imix, 'imix.public.570B', '0') }}"
-                1400B: "{{get(imix, 'imix.public.1400B', '0') }}"
-                1500B: "{{get(imix, 'imix.public.1500B', '0') }}"
-                1518B: "{{get(imix, 'imix.public.1518B', '0') }}"
+                64B: "{{get(imix, 'imix.downlink.64B', '0') }}"
+                128B: "{{get(imix, 'imix.downlink.128B', '0') }}"
+                256B: "{{get(imix, 'imix.downlink.256B', '0') }}"
+                373b: "{{get(imix, 'imix.downlink.373B', '0') }}"
+                512B: "{{get(imix, 'imix.downlink.512B', '0') }}"
+                570B: "{{get(imix, 'imix.downlink.570B', '0') }}"
+                1400B: "{{get(imix, 'imix.downlink.1400B', '0') }}"
+                1500B: "{{get(imix, 'imix.downlink.1500B', '0') }}"
+                1518B: "{{get(imix, 'imix.downlink.1518B', '0') }}"
 
         outer_l3v4:
             proto: "udp"
diff --git a/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency_vpe.yaml b/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency_vpe.yaml
index 7ca2f1043..5cce5941e 100644
--- a/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency_vpe.yaml
+++ b/samples/vnf_samples/traffic_profiles/ixia_ipv4_latency_vpe.yaml
@@ -44,17 +44,17 @@ traffic_profile:
   frame_rate : 100  # pc of linerate
   # that specifies a range (e.g. ipv4 address, port)
 
-private_1:
+uplink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
             QinQ:
                 S-VLAN:
@@ -78,17 +78,17 @@ private_1:
             srcport: "{{get(flow, 'flow.src_port_0', '0') }}"
             dstport: "{{get(flow, 'flow.dst_port_0', '0') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_1:
+downlink_0:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
         outer_l3v4:
             proto: "tcp"
@@ -102,17 +102,17 @@ public_1:
             srcport: "{{get(flow, 'flow.dst_port_0', '0') }}"
             dstport: "{{get(flow, 'flow.src_port_0', '0') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-private_2:
+uplink_1:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
             QinQ:
                 S-VLAN:
@@ -135,17 +135,17 @@ private_2:
             srcport: "{{get(flow, 'flow.src_port1', '0') }}"
             dstport: "{{get(flow, 'flow.dst_port1', '0') }}"
             count: "{{get(flow, 'flow.count', '1') }}"
-public_2:
+downlink_1:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
         outer_l3v4:
             proto: "tcp"
diff --git a/tests/unit/benchmark/core/test_task.py b/tests/unit/benchmark/core/test_task.py
index e3917b5b2..737e7058b 100644
--- a/tests/unit/benchmark/core/test_task.py
+++ b/tests/unit/benchmark/core/test_task.py
@@ -70,10 +70,10 @@ class TaskTestCase(unittest.TestCase):
                         'network_name': 'mgmt',
                     },
                     'xe0': {
-                        'network_name': 'private_0',
+                        'network_name': 'uplink_0',
                     },
                     'xe1': {
-                        'network_name': 'public_0',
+                        'network_name': 'downlink_0',
                     },
                 },
             },
@@ -82,11 +82,11 @@ class TaskTestCase(unittest.TestCase):
                     'mgmt': {
                         'network_name': 'mgmt',
                     },
-                    'private_0': {
-                        'network_name': 'private_0',
+                    'uplink_0': {
+                        'network_name': 'uplink_0',
                     },
-                    'public_0': {
-                        'network_name': 'public_0',
+                    'downlink_0': {
+                        'network_name': 'downlink_0',
                     },
                 },
             },
@@ -100,15 +100,15 @@ class TaskTestCase(unittest.TestCase):
             },
             {},
             {
-                'name': 'private_0',
+                'name': 'uplink_0',
                 'subnet_cidr': '10.20.0.0/16',
             },
             {
-                'name': 'public_0',
+                'name': 'downlink_0',
                 'segmentation_id': '1001',
             },
             {
-                'name': 'private_1',
+                'name': 'uplink_1',
             },
         ])
 
@@ -116,9 +116,9 @@ class TaskTestCase(unittest.TestCase):
         expected_get_network_calls = 6
         expected = {
             'mgmt': {'name': 'mgmt', 'network_type': 'flat'},
-            'private_0': {'name': 'private_0', 'subnet_cidr': '10.20.0.0/16'},
-            'private_1': {'name': 'private_1'},
-            'public_0': {'name': 'public_0', 'segmentation_id': '1001'},
+            'uplink_0': {'name': 'uplink_0', 'subnet_cidr': '10.20.0.0/16'},
+            'uplink_1': {'name': 'uplink_1'},
+            'downlink_0': {'name': 'downlink_0', 'segmentation_id': '1001'},
         }
 
         networks = task.get_networks_from_nodes(nodes)
diff --git a/tests/unit/benchmark/scenarios/networking/ipv4_throughput_vpe.yaml b/tests/unit/benchmark/scenarios/networking/ipv4_throughput_vpe.yaml
index cfa166a74..2123e4705 100644
--- a/tests/unit/benchmark/scenarios/networking/ipv4_throughput_vpe.yaml
+++ b/tests/unit/benchmark/scenarios/networking/ipv4_throughput_vpe.yaml
@@ -49,13 +49,13 @@ private:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
             QinQ:
                 S-VLAN:
@@ -81,13 +81,13 @@ public:
       ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'imix.private.imix_small', '0') }}"
-                128B: "{{ get(imix, 'imix.private.imix_128B', '0') }}"
-                256B: "{{ get(imix, 'imix.private.imix_256B', '0') }}"
-                373b: "{{ get(imix, 'imix.private.imix_373B', '0') }}"
-                570B: "{{get(imix, 'imix.private.imix_570B', '0') }}"
-                1400B: "{{get(imix, 'imix.private.imix_1400B', '0') }}"
-                1518B: "{{get(imix, 'imix.private.imix_1500B', '0') }}"
+                64B: "{{ get(imix, 'imix.uplink.imix_small', '0') }}"
+                128B: "{{ get(imix, 'imix.uplink.imix_128B', '0') }}"
+                256B: "{{ get(imix, 'imix.uplink.imix_256B', '0') }}"
+                373b: "{{ get(imix, 'imix.uplink.imix_373B', '0') }}"
+                570B: "{{get(imix, 'imix.uplink.imix_570B', '0') }}"
+                1400B: "{{get(imix, 'imix.uplink.imix_1400B', '0') }}"
+                1518B: "{{get(imix, 'imix.uplink.imix_1500B', '0') }}"
 
         outer_l3v4:
             proto: "tcp"
diff --git a/tests/unit/benchmark/scenarios/networking/test_vnf_generic.py b/tests/unit/benchmark/scenarios/networking/test_vnf_generic.py
index 8aa9a8c8b..fa9b8549d 100644
--- a/tests/unit/benchmark/scenarios/networking/test_vnf_generic.py
+++ b/tests/unit/benchmark/scenarios/networking/test_vnf_generic.py
@@ -242,11 +242,11 @@ class TestNetworkServiceTestCase(unittest.TestCase):
                 'vnf__1': self.vnf__1,
             },
             'networks': {
-                'private': {
-                    'vld_id': 'private',
+                GenericVNF.UPLINK: {
+                    'vld_id': GenericVNF.UPLINK,
                 },
-                'public': {
-                    'vld_id': 'public',
+                GenericVNF.DOWNLINK: {
+                    'vld_id': GenericVNF.DOWNLINK,
                 },
             },
         }
@@ -265,7 +265,7 @@ class TestNetworkServiceTestCase(unittest.TestCase):
                 }
             ],
             'type': 'ELAN',
-            'id': 'private',
+            'id': GenericVNF.UPLINK,
             'name': 'tg__1 to vnf__1 link 1'
         }
 
@@ -283,7 +283,7 @@ class TestNetworkServiceTestCase(unittest.TestCase):
                 }
             ],
             'type': 'ELAN',
-            'id': 'public',
+            'id': GenericVNF.DOWNLINK,
             'name': 'vnf__1 to tg__1 link 2'
         }
 
diff --git a/tests/unit/benchmark/scenarios/networking/vpe_vnf_topology.yaml b/tests/unit/benchmark/scenarios/networking/vpe_vnf_topology.yaml
index 0de4b6e79..1ac6c1f89 100644
--- a/tests/unit/benchmark/scenarios/networking/vpe_vnf_topology.yaml
+++ b/tests/unit/benchmark/scenarios/networking/vpe_vnf_topology.yaml
@@ -27,7 +27,7 @@ nsd:nsd-catalog:
             VNF model: ../../vnf_descriptors/vpe_vnf.yaml    #tg_l3fwd.yaml #tg_trex_tpl.yaml       #TREX
 
         vld:
-        -   id: private
+        -   id: uplink
             name: tg__1 to vnf__1 link 1
             type: ELAN
             vnfd-connection-point-ref:
@@ -38,7 +38,7 @@ nsd:nsd-catalog:
                 vnfd-connection-point-ref: xe0
                 vnfd-id-ref: vnf__1                  #VNF
 
-        -   id: public
+        -   id: downlink
             name: vnf__1 to tg__1 link 2
             type: ELAN
             vnfd-connection-point-ref:
diff --git a/tests/unit/network_services/helpers/acl_vnf_topology_ixia.yaml b/tests/unit/network_services/helpers/acl_vnf_topology_ixia.yaml
index 606d557e9..f60834fbd 100644
--- a/tests/unit/network_services/helpers/acl_vnf_topology_ixia.yaml
+++ b/tests/unit/network_services/helpers/acl_vnf_topology_ixia.yaml
@@ -27,7 +27,7 @@ nsd:nsd-catalog:
             VNF model: ../../vnf_descriptors/acl_vnf.yaml
 
         vld:
-        -   id: private_1
+        -   id: uplink_1
             name: tg__1 to vnf__1 link 1
             type: ELAN
             vnfd-connection-point-ref:
@@ -38,7 +38,7 @@ nsd:nsd-catalog:
                 vnfd-connection-point-ref: xe0
                 vnfd-id-ref: vnf__1                  #VNF
 
-        -   id: public_1
+        -   id: downlink_1
             name: vnf__1 to tg__1 link 2
             type: ELAN
             vnfd-connection-point-ref:
diff --git a/tests/unit/network_services/helpers/test_samplevnf_helper.py b/tests/unit/network_services/helpers/test_samplevnf_helper.py
index 3d3f6dc28..0ac363f28 100644
--- a/tests/unit/network_services/helpers/test_samplevnf_helper.py
+++ b/tests/unit/network_services/helpers/test_samplevnf_helper.py
@@ -37,7 +37,7 @@ class TestPortPairs(unittest.TestCase):
         vnfd = TestMultiPortConfig.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
         interfaces = vnfd['vdu'][0]['external-interface']
         port_pairs = PortPairs(interfaces)
-        self.assertEqual(port_pairs.valid_networks, [("private_0", "public_0")])
+        self.assertEqual(port_pairs.valid_networks, [("uplink_0", "downlink_0")])
 
     def test_all_ports(self):
         vnfd = TestMultiPortConfig.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
@@ -45,17 +45,17 @@ class TestPortPairs(unittest.TestCase):
         port_pairs = PortPairs(interfaces)
         self.assertEqual(set(port_pairs.all_ports), {"xe0", "xe1"})
 
-    def test_priv_ports(self):
+    def test_uplink_ports(self):
         vnfd = TestMultiPortConfig.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
         interfaces = vnfd['vdu'][0]['external-interface']
         port_pairs = PortPairs(interfaces)
-        self.assertEqual(port_pairs.priv_ports, ["xe0"])
+        self.assertEqual(port_pairs.uplink_ports, ["xe0"])
 
-    def test_pub_ports(self):
+    def test_downlink_ports(self):
         vnfd = TestMultiPortConfig.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
         interfaces = vnfd['vdu'][0]['external-interface']
         port_pairs = PortPairs(interfaces)
-        self.assertEqual(port_pairs.pub_ports, ["xe1"])
+        self.assertEqual(port_pairs.downlink_ports, ["xe1"])
 
 
 class TestMultiPortConfig(unittest.TestCase):
@@ -99,7 +99,7 @@ class TestMultiPortConfig(unittest.TestCase):
                                     'ifname': 'xe0',
                                     'local_iface_name': 'eth0',
                                     'local_mac': '00:00:00:00:00:02',
-                                    'vld_id': 'private_0',
+                                    'vld_id': 'uplink_0',
                                 },
                                 'vnfd-connection-point-ref': 'xe0',
                                 'name': 'xe0'},
@@ -117,7 +117,7 @@ class TestMultiPortConfig(unittest.TestCase):
                                     'ifname': 'xe1',
                                     'local_iface_name': 'eth1',
                                     'local_mac': '00:00:00:00:00:01',
-                                    'vld_id': 'public_0',
+                                    'vld_id': 'downlink_0',
                                 },
                                 'vnfd-connection-point-ref': 'xe1',
                                 'name': 'xe1'}
diff --git a/tests/unit/network_services/libs/ixia_libs/test_IxNet.py b/tests/unit/network_services/libs/ixia_libs/test_IxNet.py
index ea2f9c3d9..0c82d74a8 100644
--- a/tests/unit/network_services/libs/ixia_libs/test_IxNet.py
+++ b/tests/unit/network_services/libs/ixia_libs/test_IxNet.py
@@ -26,6 +26,9 @@ from yardstick.network_services.libs.ixia_libs.IxNet.IxNet import IP_VERSION_4
 from yardstick.network_services.libs.ixia_libs.IxNet.IxNet import IP_VERSION_6
 
 
+UPLINK = "uplink"
+DOWNLINK = "downlink"
+
 class TestIxNextgen(unittest.TestCase):
 
     def test___init__(self):
@@ -97,7 +100,7 @@ class TestIxNextgen(unittest.TestCase):
 
     def test_ix_update_frame(self):
         static_traffic_params = {
-            "private": {
+            UPLINK: {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -139,7 +142,7 @@ class TestIxNextgen(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public": {
+            DOWNLINK: {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -268,7 +271,7 @@ class TestIxNextgen(unittest.TestCase):
 
     def test_add_ip_header_v4(self):
         static_traffic_params = {
-            "private_0": {
+            "uplink_0": {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -308,7 +311,7 @@ class TestIxNextgen(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public_0": {
+            "downlink_0": {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -366,7 +369,7 @@ class TestIxNextgen(unittest.TestCase):
 
     def test_add_ip_header_v4_nothing_to_do(self):
         static_traffic_params = {
-            "private_0": {
+            "uplink_0": {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -406,7 +409,7 @@ class TestIxNextgen(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public_0": {
+            "downlink_0": {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -464,7 +467,7 @@ class TestIxNextgen(unittest.TestCase):
 
     def test_add_ip_header_v6(self):
         static_traffic_profile = {
-            "private_0": {
+            "uplink_0": {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -497,7 +500,7 @@ class TestIxNextgen(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public_0": {
+            "downlink_0": {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -547,7 +550,7 @@ class TestIxNextgen(unittest.TestCase):
 
     def test_add_ip_header_v6_nothing_to_do(self):
         static_traffic_params = {
-            "private_0": {
+            "uplink_0": {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -579,7 +582,7 @@ class TestIxNextgen(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public_0": {
+            "downlink_0": {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -684,7 +687,7 @@ class TestIxNextgen(unittest.TestCase):
 
     def test_ix_update_ether(self):
         static_traffic_params = {
-            "private_0": {
+            "uplink_0": {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -723,7 +726,7 @@ class TestIxNextgen(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public_0": {
+            "downlink_0": {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -787,7 +790,7 @@ class TestIxNextgen(unittest.TestCase):
 
     def test_ix_update_ether_nothing_to_do(self):
         static_traffic_params = {
-            "private_0": {
+            "uplink_0": {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -820,7 +823,7 @@ class TestIxNextgen(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public_0": {
+            "downlink_0": {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
diff --git a/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py b/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py
index 656623624..6fffb9ede 100644
--- a/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py
+++ b/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py
@@ -54,7 +54,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                'name': 'rfc2544',
                'traffic_profile': {'traffic_type': 'IXIARFC2544Profile',
                                    'frame_rate': 100},
-               'public': {'ipv4':
+               IXIARFC2544Profile.DOWNLINK: {'ipv4':
                           {'outer_l2': {'framesize':
                                         {'64B': '100', '1518B': '0',
                                          '128B': '0', '1400B': '0',
@@ -66,7 +66,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                                           'dscp': 0, 'ttl': 32},
                            'outer_l4': {'srcport': '2001',
                                         'dsrport': '1234'}}},
-               'private': {'ipv4':
+               IXIARFC2544Profile.UPLINK: {'ipv4':
                            {'outer_l2': {'framesize':
                                          {'64B': '100', '1518B': '0',
                                           '128B': '0', '1400B': '0',
@@ -83,12 +83,12 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_get_ixia_traffic_profile_error(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.my_ports = [0, 1]
-        traffic_generator.priv_ports = [-1]
-        traffic_generator.pub_ports = [1]
+        traffic_generator.uplink_ports = [-1]
+        traffic_generator.downlink_ports = [1]
         traffic_generator.client = \
             mock.Mock(return_value=True)
         STATIC_TRAFFIC = {
-            "private": {
+            IXIARFC2544Profile.UPLINK: {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -127,7 +127,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public": {
+            IXIARFC2544Profile.DOWNLINK: {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -187,12 +187,12 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_get_ixia_traffic_profile(self, mock_open):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.my_ports = [0, 1]
-        traffic_generator.priv_ports = [-1]
-        traffic_generator.pub_ports = [1]
+        traffic_generator.uplink_ports = [-1]
+        traffic_generator.downlink_ports = [1]
         traffic_generator.client = \
             mock.Mock(return_value=True)
         STATIC_TRAFFIC = {
-            "private": {
+            IXIARFC2544Profile.UPLINK: {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -234,7 +234,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public": {
+            IXIARFC2544Profile.DOWNLINK: {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -297,12 +297,12 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_get_ixia_traffic_profile_v6(self, mock_open):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.my_ports = [0, 1]
-        traffic_generator.priv_ports = [-1]
-        traffic_generator.pub_ports = [1]
+        traffic_generator.uplink_ports = [-1]
+        traffic_generator.downlink_ports = [1]
         traffic_generator.client = \
             mock.Mock(return_value=True)
         STATIC_TRAFFIC = {
-            "private": {
+            IXIARFC2544Profile.UPLINK: {
                 "id": 1,
                 "bidir": "False",
                 "duration": 60,
@@ -341,7 +341,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                 },
                 "traffic_type": "continuous"
             },
-            "public": {
+            IXIARFC2544Profile.DOWNLINK: {
                 "id": 2,
                 "bidir": "False",
                 "duration": 60,
@@ -398,7 +398,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                         'traffic_profile':
                         {'traffic_type': 'IXIARFC2544Profile',
                          'frame_rate': 100},
-                        'public':
+                        IXIARFC2544Profile.DOWNLINK:
                         {'ipv4':
                          {'outer_l2': {'framesize':
                                        {'64B': '100', '1518B': '0',
@@ -415,7 +415,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                                          'dscp': 0, 'ttl': 32},
                           'outer_l4': {'srcport': '2001',
                                        'dsrport': '1234'}}},
-                        'private': {'ipv4':
+                        IXIARFC2544Profile.UPLINK: {'ipv4':
                                     {'outer_l2': {'framesize':
                                                   {'64B': '100', '1518B': '0',
                                                    '128B': '0', '1400B': '0',
@@ -449,13 +449,13 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test__ixia_traffic_generate(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = \
             mock.Mock(return_value=True)
-        traffic = {"public": {'iload': 10},
-                   "private": {'iload': 10}}
+        traffic = {IXIARFC2544Profile.DOWNLINK: {'iload': 10},
+                   IXIARFC2544Profile.UPLINK: {'iload': 10}}
         ixia_obj = mock.MagicMock()
         r_f_c2544_profile = IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         r_f_c2544_profile.rate = 100
@@ -466,15 +466,15 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_execute(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = \
             mock.Mock(return_value=True)
         r_f_c2544_profile = IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         r_f_c2544_profile.first_run = True
-        r_f_c2544_profile.params = {"public": {'iload': 10},
-                                    "private": {'iload': 10}}
+        r_f_c2544_profile.params = {IXIARFC2544Profile.DOWNLINK: {'iload': 10},
+                                    IXIARFC2544Profile.UPLINK: {'iload': 10}}
 
         r_f_c2544_profile.get_streams = mock.Mock()
         r_f_c2544_profile.full_profile = {}
@@ -487,9 +487,9 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_update_traffic_profile(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],  # private, one value for intfs
-            "public_0": ["xe1", "xe2"],  # public, two values for intfs
-            "public_1": ["xe3"],  # not in TRAFFIC PROFILE
+            "uplink_0": ["xe0"],  # private, one value for intfs
+            "downlink_0": ["xe1", "xe2"],  # public, two values for intfs
+            "downlink_1": ["xe3"],  # not in TRAFFIC PROFILE
             "tenant_0": ["xe4"],  # not public or private
         }
 
@@ -499,8 +499,8 @@ class TestIXIARFC2544Profile(unittest.TestCase):
 
         traffic_profile = deepcopy(self.TRAFFIC_PROFILE)
         traffic_profile.update({
-            "private_0": ["xe0"],
-            "public_0": ["xe1", "xe2"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1", "xe2"],
         })
 
         r_f_c2544_profile = IXIARFC2544Profile(traffic_profile)
@@ -513,8 +513,8 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_get_drop_percentage(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = \
             mock.Mock(return_value=True)
@@ -548,8 +548,8 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_get_drop_percentage_update(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.my_ports = [0, 1]
-        traffic_generator.priv_ports = [0]
-        traffic_generator.pub_ports = [1]
+        traffic_generator.uplink_ports = [0]
+        traffic_generator.downlink_ports = [1]
         traffic_generator.client = \
             mock.Mock(return_value=True)
         r_f_c2544_profile = IXIARFC2544Profile(self.TRAFFIC_PROFILE)
@@ -582,8 +582,8 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_get_drop_percentage_div_zero(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.my_ports = [0, 1]
-        traffic_generator.priv_ports = [0]
-        traffic_generator.pub_ports = [1]
+        traffic_generator.uplink_ports = [0]
+        traffic_generator.downlink_ports = [1]
         traffic_generator.client = \
             mock.Mock(return_value=True)
         r_f_c2544_profile = IXIARFC2544Profile(self.TRAFFIC_PROFILE)
@@ -623,8 +623,8 @@ class TestIXIARFC2544Profile(unittest.TestCase):
     def test_start_ixia_latency(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = \
             mock.Mock(return_value=True)
diff --git a/tests/unit/network_services/traffic_profile/test_rfc2544.py b/tests/unit/network_services/traffic_profile/test_rfc2544.py
index 2366b8124..221233710 100644
--- a/tests/unit/network_services/traffic_profile/test_rfc2544.py
+++ b/tests/unit/network_services/traffic_profile/test_rfc2544.py
@@ -50,7 +50,7 @@ class TestRFC2544Profile(unittest.TestCase):
                'name': 'rfc2544',
                'traffic_profile': {'traffic_type': 'RFC2544Profile',
                                    'frame_rate': 100},
-               'public_0': {'ipv4':
+               'downlink_0': {'ipv4':
                           {'outer_l2': {'framesize':
                                         {'64B': '100', '1518B': '0',
                                          '128B': '0', '1400B': '0',
@@ -62,7 +62,7 @@ class TestRFC2544Profile(unittest.TestCase):
                                           'dscp': 0, 'ttl': 32, 'count': 1},
                            'outer_l4': {'srcport': '2001',
                                'dsrport': '1234', 'count': 1}}},
-               'private_0': {'ipv4':
+               'uplink_0': {'ipv4':
                            {'outer_l2': {'framesize':
                                          {'64B': '100', '1518B': '0',
                                           '128B': '0', '1400B': '0',
@@ -83,8 +83,8 @@ class TestRFC2544Profile(unittest.TestCase):
     def test_execute(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = \
             mock.Mock(return_value=True)
@@ -96,8 +96,8 @@ class TestRFC2544Profile(unittest.TestCase):
     def test_get_drop_percentage(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = mock.Mock(return_value=True)
 
@@ -143,8 +143,8 @@ class TestRFC2544Profile(unittest.TestCase):
     def test_get_drop_percentage_update(self):
         traffic_generator = mock.Mock(autospec=RFC2544Profile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = mock.Mock(return_value=True)
 
@@ -191,8 +191,8 @@ class TestRFC2544Profile(unittest.TestCase):
     def test_get_drop_percentage_div_zero(self):
         traffic_generator = mock.Mock(autospec=TrexProfile)
         traffic_generator.networks = {
-            "private_0": ["xe0"],
-            "public_0": ["xe1"],
+            "uplink_0": ["xe0"],
+            "downlink_0": ["xe1"],
         }
         traffic_generator.client = \
             mock.Mock(return_value=True)
diff --git a/tests/unit/network_services/traffic_profile/test_traffic_profile.py b/tests/unit/network_services/traffic_profile/test_traffic_profile.py
index e0b0ce85c..8355c85b6 100644
--- a/tests/unit/network_services/traffic_profile/test_traffic_profile.py
+++ b/tests/unit/network_services/traffic_profile/test_traffic_profile.py
@@ -60,24 +60,24 @@ class TestTrexProfile(unittest.TestCase):
                'name': 'rfc2544',
                'traffic_profile': {'traffic_type': 'RFC2544Profile',
                                    'frame_rate': 100},
-               'public': {'ipv4': {'outer_l2': {'framesize': {'64B': '100',
+               TrafficProfile.DOWNLINK: {'ipv4': {'outer_l2': {'framesize': {'64B': '100',
                                                               '1518B': '0',
                                                               '128B': '0',
                                                               '1400B': '0',
                                                               '256B': '0',
                                                               '373b': '0',
                                                               '570B': '0'},
-                                                "srcmac": "00:00:00:00:00:02",
-                                                "dstmac": "00:00:00:00:00:01"},
-                                   'outer_l3v4': {'dstip4': '1.1.1.1-1.1.2.2',
+                                                               "srcmac": "00:00:00:00:00:02",
+                                                               "dstmac": "00:00:00:00:00:01"},
+                                                  'outer_l3v4': {'dstip4': '1.1.1.1-1.1.2.2',
                                                   'proto': 'udp',
                                                   'srcip4': '9.9.1.1-90.1.2.2',
                                                   'dscp': 0, 'ttl': 32,
                                                   'count': 1},
-                                   'outer_l4': {'srcport': '2001',
+                                                  'outer_l4': {'srcport': '2001',
                                                 'dsrport': '1234',
                                                 'count': 1}}},
-               'private': {'ipv4':
+               TrafficProfile.UPLINK: {'ipv4':
                            {'outer_l2': {'framesize':
                                          {'64B': '100', '1518B': '0',
                                           '128B': '0', '1400B': '0',
@@ -97,22 +97,22 @@ class TestTrexProfile(unittest.TestCase):
                   'name': 'rfc2544',
                   'traffic_profile': {'traffic_type': 'RFC2544Profile',
                                       'frame_rate': 100},
-                  'public': {'ipv6': {'outer_l2': {'framesize':
+                  TrafficProfile.DOWNLINK: {'ipv6': {'outer_l2': {'framesize':
                                                    {'64B': '100', '1518B': '0',
                                                     '128B': '0', '1400B': '0',
                                                     '256B': '0', '373b': '0',
                                                     '570B': '0'},
                                                    "srcmac": "00:00:00:00:00:02",
                                                    "dstmac": "00:00:00:00:00:01"},
-                                      'outer_l3v4': {'dstip6': '0064:ff9b:0:0:0:0:9810:6414-0064:ff9b:0:0:0:0:9810:6420',
+                                                     'outer_l3v4': {'dstip6': '0064:ff9b:0:0:0:0:9810:6414-0064:ff9b:0:0:0:0:9810:6420',
                                                      'proto': 'udp',
                                                      'srcip6': '0064:ff9b:0:0:0:0:9810:2814-0064:ff9b:0:0:0:0:9810:2820',
                                                      'dscp': 0, 'ttl': 32,
                                                      'count': 1},
-                                      'outer_l4': {'srcport': '2001',
+                                                     'outer_l4': {'srcport': '2001',
                                                    'dsrport': '1234',
                                                    'count': 1}}},
-                  'private':
+                  TrafficProfile.UPLINK:
                   {'ipv6': {'outer_l2': {'framesize':
                                          {'64B': '100', '1518B': '0',
                                           '128B': '0', '1400B': '0',
@@ -153,21 +153,21 @@ class TestTrexProfile(unittest.TestCase):
             TrexProfile(TrafficProfile)
         qinq = {"S-VLAN": {"id": 128, "priority": 0, "cfi": 0},
                 "C-VLAN": {"id": 512, "priority": 0, "cfi": 0}}
-        outer_l2 = self.PROFILE['private']['ipv4']['outer_l2']
+        outer_l2 = self.PROFILE[TrafficProfile.UPLINK]['ipv4']['outer_l2']
         outer_l2['QinQ'] = qinq
         self.assertEqual(None, trex_profile._set_outer_l2_fields(outer_l2))
 
     def test__set_outer_l3v4_fields(self):
         trex_profile = \
             TrexProfile(TrafficProfile)
-        outer_l3v4 = self.PROFILE['private']['ipv4']['outer_l3v4']
+        outer_l3v4 = self.PROFILE[TrafficProfile.UPLINK]['ipv4']['outer_l3v4']
         outer_l3v4['proto'] = 'tcp'
         self.assertEqual(None, trex_profile._set_outer_l3v4_fields(outer_l3v4))
 
     def test__set_outer_l3v6_fields(self):
         trex_profile = \
             TrexProfile(TrafficProfile)
-        outer_l3v6 = self.PROFILE_v6['private']['ipv6']['outer_l3v4']
+        outer_l3v6 = self.PROFILE_v6[TrafficProfile.UPLINK]['ipv6']['outer_l3v4']
         outer_l3v6['proto'] = 'tcp'
         outer_l3v6['tc'] = 1
         outer_l3v6['hlim'] = 10
@@ -176,19 +176,19 @@ class TestTrexProfile(unittest.TestCase):
     def test__set_outer_l4_fields(self):
         trex_profile = \
             TrexProfile(TrafficProfile)
-        outer_l4 = self.PROFILE['private']['ipv4']['outer_l4']
+        outer_l4 = self.PROFILE[TrafficProfile.UPLINK]['ipv4']['outer_l4']
         self.assertEqual(None, trex_profile._set_outer_l4_fields(outer_l4))
 
     def test_get_streams(self):
         trex_profile = \
             TrexProfile(TrafficProfile)
         trex_profile.params = self.PROFILE
-        profile_data = self.PROFILE["private"]
+        profile_data = self.PROFILE[TrafficProfile.UPLINK]
         self.assertIsNotNone(trex_profile.get_streams(profile_data))
         trex_profile.pg_id = 1
         self.assertIsNotNone(trex_profile.get_streams(profile_data))
         trex_profile.params = self.PROFILE_v6
-        trex_profile.profile_data = self.PROFILE_v6["private"]
+        trex_profile.profile_data = self.PROFILE_v6[TrafficProfile.UPLINK]
         self.assertIsNotNone(trex_profile.get_streams(profile_data))
         trex_profile.pg_id = 1
         self.assertIsNotNone(trex_profile.get_streams(profile_data))
diff --git a/tests/unit/network_services/vnf_generic/test_vnfdgen.py b/tests/unit/network_services/vnf_generic/test_vnfdgen.py
index c2b923568..ee881c963 100644
--- a/tests/unit/network_services/vnf_generic/test_vnfdgen.py
+++ b/tests/unit/network_services/vnf_generic/test_vnfdgen.py
@@ -24,6 +24,10 @@ from six.moves import range
 from yardstick.common.yaml_loader import yaml_load
 from yardstick.network_services.vnf_generic import vnfdgen
 
+
+UPLINK = "uplink"
+DOWNLINK = "downlink"
+
 TREX_VNFD_TEMPLATE = """
 vnfd:vnfd-catalog:
     vnfd:
@@ -183,22 +187,23 @@ NODE_CFG = {'ip': '1.1.1.1',
             }
 
 
+# need to template, but can't use {} so use %s
 TRAFFIC_PROFILE_TPL = """
-private:
+%(0)s:
     - ipv4:
         outer_l2:
             framesize:
-                64B: "{{ get(imix, 'private.imix_small', 10) }}"
-                128B: "{{ get(imix, 'private.imix_128B', 10) }}"
-                256B: "{{ get(imix, 'private.imix_256B', 10) }}"
-                373B: "{{ get(imix, 'private.imix_373B', 10) }}"
-                570B: "{{get(imix, 'private.imix_570B', 10) }}"
-                1400B: "{{get(imix, 'private.imix_1400B', 10) }}"
-                1518B: "{{get(imix, 'private.imix_1500B', 40) }}"
-"""
+                64B: "{{ get(imix, '%(0)s.imix_small', 10) }}"
+                128B: "{{ get(imix, '%(0)s.imix_128B', 10) }}"
+                256B: "{{ get(imix, '%(0)s.imix_256B', 10) }}"
+                373B: "{{ get(imix, '%(0)s.imix_373B', 10) }}"
+                570B: "{{get(imix, '%(0)s.imix_570B', 10) }}"
+                1400B: "{{get(imix, '%(0)s.imix_1400B', 10) }}"
+                1518B: "{{get(imix, '%(0)s.imix_1500B', 40) }}"
+""" % {"0": UPLINK}
 
 TRAFFIC_PROFILE = {
-    "private": [{"ipv4": {"outer_l2":
+    UPLINK: [{"ipv4": {"outer_l2":
                           {"framesize": {"64B": '10', "128B": '10',
                                          "256B": '10', "373B": '10',
                                          "570B": '10', "1400B": '10',
@@ -269,8 +274,8 @@ class TestVnfdGen(unittest.TestCase):
 
         generated_tp = \
             vnfdgen.generate_vnfd(TRAFFIC_PROFILE_TPL,
-                                  {"imix": {"private": {"imix_small": '20'}}})
+                                  {"imix": {UPLINK: {"imix_small": '20'}}})
         self.maxDiff = None
         tp2 = dict(TRAFFIC_PROFILE)
-        tp2["private"][0]["ipv4"]["outer_l2"]["framesize"]["64B"] = '20'
+        tp2[UPLINK][0]["ipv4"]["outer_l2"]["framesize"]["64B"] = '20'
         self.assertDictEqual(tp2, generated_tp)
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py
index f47da3729..e9444b493 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py
@@ -144,7 +144,7 @@ class TestAclApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens513f0',
-                                       'vld_id': 'public',
+                                       'vld_id': AclApproxVnf.DOWNLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.40.20',
                                        'dst_mac': '00:00:00:00:00:01',
@@ -172,7 +172,7 @@ class TestAclApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens785f0',
-                                       'vld_id': 'private',
+                                       'vld_id': AclApproxVnf.UPLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.100.20',
                                        'dst_mac': '00:00:00:00:00:02',
@@ -197,7 +197,7 @@ class TestAclApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens786f0',
-                                       'vld_id': 'private',
+                                       'vld_id': AclApproxVnf.UPLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.100.19',
                                        'dst_mac': '00:00:00:00:00:04',
@@ -207,7 +207,7 @@ class TestAclApproxVnf(unittest.TestCase):
                                        'vpci': '0000:05:00.0',
                                        'dpdk_port_num': 0},
                                'xe1': {'local_iface_name': 'ens786f1',
-                                       'vld_id': 'public',
+                                       'vld_id': AclApproxVnf.DOWNLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.40.19',
                                        'dst_mac': '00:00:00:00:00:03',
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py
index c21beabfc..76f2d5b5d 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py
@@ -73,7 +73,7 @@ link 1 up
 
     def test__get_cgnapt_config(self):
         vnfd_helper = mock.Mock()
-        vnfd_helper.port_pairs.priv_ports = [{"name": 'a'}, {"name": "b"}, {"name": "c"}]
+        vnfd_helper.port_pairs.uplink_ports = [{"name": 'a'}, {"name": "b"}, {"name": "c"}]
 
         helper = CgnaptApproxSetupEnvHelper(vnfd_helper, mock.Mock(), mock.Mock())
         helper._get_ports_gateway = mock.Mock(side_effect=[3, 5, 2])
@@ -206,7 +206,7 @@ class TestCgnaptApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens513f0',
-                                       'vld_id': 'public',
+                                       'vld_id': CgnaptApproxVnf.DOWNLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.40.20',
                                        'dst_mac': '00:00:00:00:00:01',
@@ -234,7 +234,7 @@ class TestCgnaptApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens785f0',
-                                       'vld_id': 'private',
+                                       'vld_id': CgnaptApproxVnf.UPLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.100.20',
                                        'dst_mac': '00:00:00:00:00:02',
@@ -259,7 +259,7 @@ class TestCgnaptApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens786f0',
-                                       'vld_id': 'private',
+                                       'vld_id': CgnaptApproxVnf.UPLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.100.19',
                                        'dst_mac': '00:00:00:00:00:04',
@@ -269,7 +269,7 @@ class TestCgnaptApproxVnf(unittest.TestCase):
                                        'vpci': '0000:05:00.0',
                                        'dpdk_port_num': 0},
                                'xe1': {'local_iface_name': 'ens786f1',
-                                       'vld_id': 'public',
+                                       'vld_id': CgnaptApproxVnf.DOWNLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.40.19',
                                        'dst_mac': '00:00:00:00:00:03',
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py b/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
index 821c10f64..8d21fbb28 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
@@ -679,7 +679,7 @@ class TestProxDpdkVnfSetupEnvHelper(unittest.TestCase):
                             'vpci': '0000:05:00.0',
                             'local_ip': '152.16.100.19',
                             'type': 'PCI-PASSTHROUGH',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'netmask': '255.255.255.0',
                             'dpdk_port_num': 0,
                             'bandwidth': '10 Gbps',
@@ -698,7 +698,7 @@ class TestProxDpdkVnfSetupEnvHelper(unittest.TestCase):
                             'vpci': '0000:05:00.1',
                             'local_ip': '152.16.40.19',
                             'type': 'PCI-PASSTHROUGH',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'driver': "i40e",
                             'netmask': '255.255.255.0',
                             'dpdk_port_num': 1,
@@ -1281,7 +1281,7 @@ class TestProxResourceHelper(unittest.TestCase):
                             'vpci': '0000:05:00.0',
                             'local_ip': '152.16.100.19',
                             'type': 'PCI-PASSTHROUGH',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'netmask': '255.255.255.0',
                             'dpdk_port_num': 0,
                             'bandwidth': '10 Gbps',
@@ -1300,7 +1300,7 @@ class TestProxResourceHelper(unittest.TestCase):
                             'vpci': '0000:05:00.1',
                             'local_ip': '152.16.40.19',
                             'type': 'PCI-PASSTHROUGH',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'driver': "i40e",
                             'netmask': '255.255.255.0',
                             'dpdk_port_num': 1,
@@ -1755,7 +1755,7 @@ class TestProxResourceHelper(unittest.TestCase):
                 'vpci': '0000:06:00.0',
                 'local_ip': '152.16.100.20',
                 'type': 'PCI-PASSTHROUGH',
-                'vld_id': 'private_1',
+                'vld_id': 'uplink_1',
                 'netmask': '255.255.255.0',
                 'dpdk_port_num': 0,
                 'bandwidth': '10 Gbps',
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py
index 2e83cafc1..d1f7f05d8 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py
@@ -187,7 +187,7 @@ class TestProxApproxVnf(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens513f0',
-                        'vld_id': 'public',
+                        'vld_id': ProxApproxVnf.DOWNLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.40.20',
                         'dst_mac': '00:00:00:00:00:01',
@@ -221,7 +221,7 @@ class TestProxApproxVnf(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens785f0',
-                        'vld_id': 'private',
+                        'vld_id': ProxApproxVnf.UPLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.100.20',
                         'dst_mac': '00:00:00:00:00:02',
@@ -252,7 +252,7 @@ class TestProxApproxVnf(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens786f0',
-                        'vld_id': 'private',
+                        'vld_id': ProxApproxVnf.UPLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.100.19',
                         'dst_mac': '00:00:00:00:00:04',
@@ -264,7 +264,7 @@ class TestProxApproxVnf(unittest.TestCase):
                     },
                     'xe1': {
                         'local_iface_name': 'ens786f1',
-                        'vld_id': 'public',
+                        'vld_id': ProxApproxVnf.DOWNLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.40.19',
                         'dst_mac': '00:00:00:00:00:03',
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
index fa733489c..4b9f4172e 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
@@ -102,7 +102,7 @@ class TestVnfSshHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.100.20',
                             'local_mac': '00:00:00:00:00:01',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'ifname': 'xe0',
                         },
                         'vnfd-connection-point-ref': 'xe0',
@@ -119,7 +119,7 @@ class TestVnfSshHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.40.20',
                             'local_mac': '00:00:00:00:00:02',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'ifname': 'xe1',
                         },
                         'vnfd-connection-point-ref': 'xe1',
@@ -300,7 +300,7 @@ class TestSetupEnvHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.100.20',
                             'local_mac': '00:00:00:00:00:01',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'ifname': 'xe0',
                         },
                         'vnfd-connection-point-ref': 'xe0',
@@ -317,7 +317,7 @@ class TestSetupEnvHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.40.20',
                             'local_mac': '00:00:00:00:00:02',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'ifname': 'xe1',
                         },
                         'vnfd-connection-point-ref': 'xe1',
@@ -430,7 +430,7 @@ class TestDpdkVnfSetupEnvHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.100.20',
                             'local_mac': '00:00:00:00:00:01',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'ifname': 'xe0',
                         },
                         'vnfd-connection-point-ref': 'xe0',
@@ -448,7 +448,7 @@ class TestDpdkVnfSetupEnvHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.40.20',
                             'local_mac': '00:00:00:00:00:02',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'ifname': 'xe1',
                         },
                         'vnfd-connection-point-ref': 'xe1',
@@ -1029,7 +1029,7 @@ class TestClientResourceHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.100.20',
                             'local_mac': '00:00:00:00:00:01',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'ifname': 'xe0',
                         },
                         'vnfd-connection-point-ref': 'xe0',
@@ -1047,7 +1047,7 @@ class TestClientResourceHelper(unittest.TestCase):
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.40.20',
                             'local_mac': '00:00:00:00:00:02',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'ifname': 'xe1',
                         },
                         'vnfd-connection-point-ref': 'xe1',
@@ -1912,8 +1912,8 @@ class TestSampleVnf(unittest.TestCase):
 
         self.assertIsNone(sample_vnf._build_ports())
         self.assertIsNotNone(sample_vnf.networks)
-        self.assertIsNotNone(sample_vnf.priv_ports)
-        self.assertIsNotNone(sample_vnf.pub_ports)
+        self.assertIsNotNone(sample_vnf.uplink_ports)
+        self.assertIsNotNone(sample_vnf.downlink_ports)
         self.assertIsNotNone(sample_vnf.my_ports)
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py
index d1f24700a..73e1c723f 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py
@@ -180,7 +180,7 @@ class TestProxTrafficGen(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens513f0',
-                        'vld_id': 'public',
+                        'vld_id': ProxTrafficGen.DOWNLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.40.20',
                         'dst_mac': '00:00:00:00:00:01',
@@ -214,7 +214,7 @@ class TestProxTrafficGen(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens785f0',
-                        'vld_id': 'private',
+                        'vld_id': ProxTrafficGen.UPLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.100.20',
                         'dst_mac': '00:00:00:00:00:02',
@@ -245,7 +245,7 @@ class TestProxTrafficGen(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens786f0',
-                        'vld_id': 'private',
+                        'vld_id': ProxTrafficGen.UPLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.100.19',
                         'dst_mac': '00:00:00:00:00:04',
@@ -257,7 +257,7 @@ class TestProxTrafficGen(unittest.TestCase):
                     },
                     'xe1': {
                         'local_iface_name': 'ens786f1',
-                        'vld_id': 'public',
+                        'vld_id': ProxTrafficGen.DOWNLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.40.19',
                         'dst_mac': '00:00:00:00:00:03',
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py
index 0fe0c3d45..637706fb4 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py
@@ -100,7 +100,7 @@ class TestTrexTrafficGenRFC(unittest.TestCase):
                             'local_ip': '152.16.100.19',
                             'type': 'PCI-PASSTHROUGH',
                             'netmask': '255.255.255.0',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'dpdk_port_num': 0,
                             'bandwidth': '10 Gbps',
                             'driver': "i40e",
@@ -120,7 +120,7 @@ class TestTrexTrafficGenRFC(unittest.TestCase):
                             'type': 'PCI-PASSTHROUGH',
                             'driver': "i40e",
                             'netmask': '255.255.255.0',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'dpdk_port_num': 1,
                             'bandwidth': '10 Gbps',
                             'dst_ip': '152.16.40.20',
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py
index 4fd4c4c43..eb9f0525b 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py
@@ -165,7 +165,7 @@ class TestTrexTrafficGen(unittest.TestCase):
                 "interfaces": {
                     "xe0": {
                         "local_iface_name": "ens786f0",
-                        "vld_id": "private",
+                        "vld_id": TrafficProfile.UPLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:05:00.0",
                         "local_ip": "152.16.100.19",
@@ -177,7 +177,7 @@ class TestTrexTrafficGen(unittest.TestCase):
                     },
                     "xe1": {
                         "local_iface_name": "ens786f1",
-                        "vld_id": "public",
+                        "vld_id": TrafficProfile.DOWNLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:05:00.1",
                         "local_ip": "152.16.40.19",
@@ -233,7 +233,7 @@ class TestTrexTrafficGen(unittest.TestCase):
                 "interfaces": {
                     "xe0": {
                         "local_iface_name": "ens513f0",
-                        "vld_id": "public",
+                        "vld_id": TrafficProfile.DOWNLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:02:00.0",
                         "local_ip": "152.16.40.20",
@@ -267,7 +267,7 @@ class TestTrexTrafficGen(unittest.TestCase):
                 "interfaces": {
                     "xe0": {
                         "local_iface_name": "ens785f0",
-                        "vld_id": "private",
+                        "vld_id": TrafficProfile.UPLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:05:00.0",
                         "local_ip": "152.16.100.20",
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py b/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py
index 95bc08b17..b75ed6764 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py
@@ -78,7 +78,7 @@ class TestUdpReplayApproxVnf(unittest.TestCase):
                             'netmask': '255.255.255.0',
                             'dst_ip': '152.16.100.20',
                             'type': 'PCI-PASSTHROUGH',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'ifname': 'xe0',
                         },
                         'vnfd-connection-point-ref': 'xe0',
@@ -97,7 +97,7 @@ class TestUdpReplayApproxVnf(unittest.TestCase):
                             'netmask': '255.255.255.0',
                             'dst_ip': '152.16.40.20',
                             'type': 'PCI-PASSTHROUGH',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'ifname': 'xe1',
                         },
                         'vnfd-connection-point-ref': 'xe1',
@@ -200,7 +200,7 @@ class TestUdpReplayApproxVnf(unittest.TestCase):
                 "interfaces": {
                     "xe0": {
                         "local_iface_name": "ens786f0",
-                        "vld_id": "private",
+                        "vld_id": UdpReplayApproxVnf.UPLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:05:00.0",
                         "local_ip": "152.16.100.19",
@@ -212,7 +212,7 @@ class TestUdpReplayApproxVnf(unittest.TestCase):
                     },
                     "xe1": {
                         "local_iface_name": "ens786f1",
-                        "vld_id": "public",
+                        "vld_id": UdpReplayApproxVnf.DOWNLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:05:00.1",
                         "local_ip": "152.16.40.19",
@@ -268,7 +268,7 @@ class TestUdpReplayApproxVnf(unittest.TestCase):
                 "interfaces": {
                     "xe0": {
                         "local_iface_name": "ens513f0",
-                        "vld_id": "public",
+                        "vld_id": UdpReplayApproxVnf.DOWNLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:02:00.0",
                         "local_ip": "152.16.40.20",
@@ -302,7 +302,7 @@ class TestUdpReplayApproxVnf(unittest.TestCase):
                 "interfaces": {
                     "xe0": {
                         "local_iface_name": "ens785f0",
-                        "vld_id": "private",
+                        "vld_id": UdpReplayApproxVnf.UPLINK,
                         "netmask": "255.255.255.0",
                         "vpci": "0000:05:00.0",
                         "local_ip": "152.16.100.20",
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py
index 38cc1774a..958099a03 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py
@@ -142,7 +142,7 @@ class TestFWApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens513f0',
-                                       'vld_id': 'public',
+                                       'vld_id': FWApproxVnf.DOWNLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.40.20',
                                        'dst_mac': '00:00:00:00:00:01',
@@ -170,7 +170,7 @@ class TestFWApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens785f0',
-                                       'vld_id': 'private',
+                                       'vld_id': FWApproxVnf.UPLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.100.20',
                                        'dst_mac': '00:00:00:00:00:02',
@@ -195,7 +195,7 @@ class TestFWApproxVnf(unittest.TestCase):
                               'ip': '1.2.1.1',
                               'interfaces':
                               {'xe0': {'local_iface_name': 'ens786f0',
-                                       'vld_id': 'private',
+                                       'vld_id': FWApproxVnf.UPLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.100.19',
                                        'dst_mac': '00:00:00:00:00:04',
@@ -205,7 +205,7 @@ class TestFWApproxVnf(unittest.TestCase):
                                        'vpci': '0000:05:00.0',
                                        'dpdk_port_num': 0},
                                'xe1': {'local_iface_name': 'ens786f1',
-                                       'vld_id': 'public',
+                                       'vld_id': FWApproxVnf.DOWNLINK,
                                        'netmask': '255.255.255.0',
                                        'local_ip': '152.16.40.19',
                                        'dst_mac': '00:00:00:00:00:03',
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py
index 62389870b..757109d11 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py
@@ -57,8 +57,8 @@ class TestConfigCreate(unittest.TestCase):
 
     def test___init__(self):
         config_create = ConfigCreate([0], [1], 2)
-        self.assertEqual(config_create.priv_ports, [0])
-        self.assertEqual(config_create.pub_ports, [1])
+        self.assertEqual(config_create.uplink_ports, [0])
+        self.assertEqual(config_create.downlink_ports, [1])
         self.assertEqual(config_create.socket, 2)
 
     def test_vpe_initialize(self):
@@ -110,7 +110,7 @@ class TestConfigCreate(unittest.TestCase):
         self.assertNotEqual(result, '')
 
     def test_create_vpe_config(self):
-        priv_ports = [
+        uplink_ports = [
             {
                 'index': 0,
                 'dpdk_port_num': 1,
@@ -121,7 +121,7 @@ class TestConfigCreate(unittest.TestCase):
             },
         ]
 
-        pub_ports = [
+        downlink_ports = [
             {
                 'index': 2,
                 'dpdk_port_num': 3,
@@ -132,7 +132,7 @@ class TestConfigCreate(unittest.TestCase):
             },
         ]
 
-        config_create = ConfigCreate(priv_ports, pub_ports, 23)
+        config_create = ConfigCreate(uplink_ports, downlink_ports, 23)
         curr_path = os.path.dirname(os.path.abspath(__file__))
         vpe_cfg = "samples/vnf_samples/nsut/vpe/vpe_config"
         vnf_cfg = os.path.join(curr_path, "../../../../..", vpe_cfg)
@@ -192,7 +192,7 @@ class TestVpeApproxVnf(unittest.TestCase):
                             'dst_ip': '152.16.100.20',
                             'local_iface_name': 'xe0',
                             'local_mac': '00:00:00:00:00:02',
-                            'vld_id': 'private_0',
+                            'vld_id': 'uplink_0',
                             'ifname': 'xe0',
                         },
                         'vnfd-connection-point-ref': 'xe0',
@@ -211,7 +211,7 @@ class TestVpeApproxVnf(unittest.TestCase):
                             'dst_ip': '152.16.40.20',
                             'local_iface_name': 'xe1',
                             'local_mac': '00:00:00:00:00:01',
-                            'vld_id': 'public_0',
+                            'vld_id': 'downlink_0',
                             'ifname': 'xe1',
                         },
                         'vnfd-connection-point-ref': 'xe1',
@@ -310,7 +310,7 @@ class TestVpeApproxVnf(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens513f0',
-                        'vld_id': 'public',
+                        'vld_id': VpeApproxVnf.DOWNLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.40.20',
                         'dst_mac': '00:00:00:00:00:01',
@@ -344,7 +344,7 @@ class TestVpeApproxVnf(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens785f0',
-                        'vld_id': 'private',
+                        'vld_id': VpeApproxVnf.UPLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.100.20',
                         'dst_mac': '00:00:00:00:00:02',
@@ -375,7 +375,7 @@ class TestVpeApproxVnf(unittest.TestCase):
                 'interfaces': {
                     'xe0': {
                         'local_iface_name': 'ens786f0',
-                        'vld_id': 'private',
+                        'vld_id': VpeApproxVnf.UPLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.100.19',
                         'dst_mac': '00:00:00:00:00:04',
@@ -387,7 +387,7 @@ class TestVpeApproxVnf(unittest.TestCase):
                     },
                     'xe1': {
                         'local_iface_name': 'ens786f1',
-                        'vld_id': 'public',
+                        'vld_id': VpeApproxVnf.DOWNLINK,
                         'netmask': '255.255.255.0',
                         'local_ip': '152.16.40.19',
                         'dst_mac': '00:00:00:00:00:03',
diff --git a/yardstick/benchmark/scenarios/networking/vnf_generic.py b/yardstick/benchmark/scenarios/networking/vnf_generic.py
index f381186de..905f1f4c5 100644
--- a/yardstick/benchmark/scenarios/networking/vnf_generic.py
+++ b/yardstick/benchmark/scenarios/networking/vnf_generic.py
@@ -170,7 +170,7 @@ class NetworkServiceTestCase(base.Scenario):
         flow = {}
         try:
             # TODO: should be .0  or .1 so we can use list
-            # but this also roughly matches private_0, public_0
+            # but this also roughly matches uplink_0, downlink_0
             fflow = self.scenario_cfg["options"]["flow"]
             for index, src in enumerate(fflow.get("src_ip", [])):
                 flow["src_ip_{}".format(index)] = self._get_ip_flow_range(src)
@@ -204,8 +204,8 @@ class NetworkServiceTestCase(base.Scenario):
         traffic_map_data = {
             'flow': self._get_traffic_flow(),
             'imix': self._get_traffic_imix(),
-            'private': {},
-            'public': {},
+            TrafficProfile.UPLINK: {},
+            TrafficProfile.DOWNLINK: {},
         }
 
         traffic_vnfd = vnfdgen.generate_vnfd(traffic_mapping, traffic_map_data)
@@ -234,7 +234,7 @@ class NetworkServiceTestCase(base.Scenario):
             # check for xe0, xe1
             intf = nodes[name]["interfaces"][if_name]
         except KeyError:
-            # if not xe0, then maybe vld_id,  private_0, public_0
+            # if not xe0, then maybe vld_id,  uplink_0, downlink_0
             # pop it and re-insert with the correct name from topology
             intf = nodes[name]["interfaces"].pop(vld_id)
             nodes[name]["interfaces"][if_name] = intf
diff --git a/yardstick/network_services/helpers/samplevnf_helper.py b/yardstick/network_services/helpers/samplevnf_helper.py
index 7054b9232..5f87f788d 100644
--- a/yardstick/network_services/helpers/samplevnf_helper.py
+++ b/yardstick/network_services/helpers/samplevnf_helper.py
@@ -64,15 +64,15 @@ SCRIPT_TPL = """
 
 class PortPairs(object):
 
-    PUBLIC = "public"
-    PRIVATE = "private"
+    DOWNLINK = "downlink"
+    UPLINK = "uplink"
 
     def __init__(self, interfaces):
         super(PortPairs, self).__init__()
         self.interfaces = interfaces
         self._all_ports = None
-        self._priv_ports = None
-        self._pub_ports = None
+        self._uplink_ports = None
+        self._downlink_ports = None
         self._networks = None
         self._port_pair_list = None
         self._valid_networks = None
@@ -93,62 +93,63 @@ class PortPairs(object):
         return self._networks
 
     @classmethod
-    def get_public_id(cls, vld_id):
+    def get_downlink_id(cls, vld_id):
         # partition returns a tuple
-        parts = list(vld_id.partition(cls.PRIVATE))
+        parts = list(vld_id.partition(cls.UPLINK))
         if parts[0]:
-            # 'private' was not in or not leftmost in the string
+            # 'uplink' was not in or not leftmost in the string
             return
-        parts[1] = cls.PUBLIC
+        parts[1] = cls.DOWNLINK
         public_id = ''.join(parts)
         return public_id
 
     @property
-    # this only works for vnfs that have both private and public visible
+    # this only works for vnfs that have both uplink and public visible
     def valid_networks(self):
         if self._valid_networks is None:
             self._valid_networks = []
             for vld_id in self.networks:
-                public_id = self.get_public_id(vld_id)
-                if public_id in self.networks:
-                    self._valid_networks.append((vld_id, public_id))
+                downlink_id = self.get_downlink_id(vld_id)
+                if downlink_id in self.networks:
+                    self._valid_networks.append((vld_id, downlink_id))
         return self._valid_networks
 
     @property
     def all_ports(self):
         if self._all_ports is None:
-            self._all_ports = sorted(set(self.priv_ports + self.pub_ports))
+            self._all_ports = sorted(set(self.uplink_ports + self.downlink_ports))
         return self._all_ports
 
     @property
-    def priv_ports(self):
-        if self._priv_ports is None:
+    def uplink_ports(self):
+        if self._uplink_ports is None:
             intfs = chain.from_iterable(
                 intfs for vld_id, intfs in self.networks.items() if
-                vld_id.startswith(self.PRIVATE))
-            self._priv_ports = sorted(set(intfs))
-        return self._priv_ports
+                vld_id.startswith(self.UPLINK))
+            self._uplink_ports = sorted(set(intfs))
+        return self._uplink_ports
 
     @property
-    def pub_ports(self):
-        if self._pub_ports is None:
+    def downlink_ports(self):
+        if self._downlink_ports is None:
             intfs = chain.from_iterable(
-                intfs for vld_id, intfs in self.networks.items() if vld_id.startswith(self.PUBLIC))
-            self._pub_ports = sorted(set(intfs))
-        return self._pub_ports
+                intfs for vld_id, intfs in self.networks.items() if
+                vld_id.startswith(self.DOWNLINK))
+            self._downlink_ports = sorted(set(intfs))
+        return self._downlink_ports
 
     @property
     def port_pair_list(self):
         if self._port_pair_list is None:
             self._port_pair_list = []
 
-            for priv, pub in self.valid_networks:
-                for private_intf in self.networks[priv]:
-                    # only VNFs have private, public peers
-                    peer_intfs = self.networks.get(pub, [])
+            for uplink, downlink in self.valid_networks:
+                for uplink_intf in self.networks[uplink]:
+                    # only VNFs have uplink, public peers
+                    peer_intfs = self.networks.get(downlink, [])
                     if peer_intfs:
-                        for public_intf in peer_intfs:
-                            port_pair = private_intf, public_intf
+                        for downlink_intf in peer_intfs:
+                            port_pair = uplink_intf, downlink_intf
                             self._port_pair_list.append(port_pair)
         return self._port_pair_list
 
@@ -341,9 +342,9 @@ class MultiPortConfig(object):
         priv_to_pub_map = [tuple(self.vnfd_helper.port_nums(x)) for x in self.port_pairs]
         # must be list to use .index()
         port_list = list(chain.from_iterable(priv_to_pub_map))
-        priv_ports = (x[0] for x in priv_to_pub_map)
+        uplink_ports = (x[0] for x in priv_to_pub_map)
         self.prv_que_handler = '({})'.format(
-            "".join(("{},".format(port_list.index(x)) for x in priv_ports)))
+            "".join(("{},".format(port_list.index(x)) for x in uplink_ports)))
 
     def generate_arp_route_tbl(self):
         arp_route_tbl_tmpl = "({port0_dst_ip_hex},{port0_netmask_hex},{port_num}," \
diff --git a/yardstick/network_services/libs/ixia_libs/IxNet/IxNet.py b/yardstick/network_services/libs/ixia_libs/IxNet/IxNet.py
index 1ec00e5bc..4b906508c 100644
--- a/yardstick/network_services/libs/ixia_libs/IxNet/IxNet.py
+++ b/yardstick/network_services/libs/ixia_libs/IxNet/IxNet.py
@@ -113,10 +113,10 @@ class IxNextgen(object):
     }
 
     MODE_SEEDS_MAP = {
-        0: ('private_0', ['256', '2048']),
+        0: ('uplink_0', ['256', '2048']),
     }
 
-    MODE_SEEDS_DEFAULT = 'public_0', ['2048', '256']
+    MODE_SEEDS_DEFAULT = 'downlink_0', ['2048', '256']
 
     @staticmethod
     def find_view_obj(view_name, views):
diff --git a/yardstick/network_services/traffic_profile/base.py b/yardstick/network_services/traffic_profile/base.py
index 611792b94..ad256b444 100644
--- a/yardstick/network_services/traffic_profile/base.py
+++ b/yardstick/network_services/traffic_profile/base.py
@@ -22,6 +22,8 @@ class TrafficProfile(object):
     This class defines the behavior
 
     """
+    UPLINK = "uplink"
+    DOWNLINK = "downlink"
 
     @staticmethod
     def get(tp_config):
diff --git a/yardstick/network_services/traffic_profile/ixia_rfc2544.py b/yardstick/network_services/traffic_profile/ixia_rfc2544.py
index 049a81a65..cb8a34796 100644
--- a/yardstick/network_services/traffic_profile/ixia_rfc2544.py
+++ b/yardstick/network_services/traffic_profile/ixia_rfc2544.py
@@ -78,7 +78,7 @@ class IXIARFC2544Profile(TrexProfile):
 
     def _ixia_traffic_generate(self, traffic_generator, traffic, ixia_obj):
         for key, value in traffic.items():
-            if "public" in key or "private" in key:
+            if key.startswith((self.UPLINK, self.DOWNLINK)):
                 value["iload"] = str(self.rate)
         ixia_obj.ix_update_frame(traffic)
         ixia_obj.ix_update_ether(traffic)
@@ -90,7 +90,7 @@ class IXIARFC2544Profile(TrexProfile):
     def update_traffic_profile(self, traffic_generator):
         def port_generator():
             for vld_id, intfs in sorted(traffic_generator.networks.items()):
-                if not vld_id.startswith(("private", "public")):
+                if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
                     continue
                 profile_data = self.params.get(vld_id)
                 if not profile_data:
diff --git a/yardstick/network_services/traffic_profile/rfc2544.py b/yardstick/network_services/traffic_profile/rfc2544.py
index 3dc08df69..16e809b65 100644
--- a/yardstick/network_services/traffic_profile/rfc2544.py
+++ b/yardstick/network_services/traffic_profile/rfc2544.py
@@ -58,7 +58,8 @@ class RFC2544Profile(TrexProfile):
             if not profile_data:
                 continue
             # correlated traffic doesn't use public traffic?
-            if vld_id.startswith("public") and self.generator.rfc2544_helper.correlated_traffic:
+            if vld_id.startswith(self.DOWNLINK) and \
+                self.generator.rfc2544_helper.correlated_traffic:
                 continue
             for intf in intfs:
                 port = self.generator.vnfd_helper.port_num(intf)
@@ -165,7 +166,8 @@ class RFC2544Profile(TrexProfile):
             if not profile_data:
                 continue
             # correlated traffic doesn't use public traffic?
-            if vld_id.startswith("public") and self.generator.rfc2544_helper.correlated_traffic:
+            if vld_id.startswith(self.DOWNLINK) and \
+                self.generator.rfc2544_helper.correlated_traffic:
                 continue
             for intf in intfs:
                 port = self.generator.vnfd_helper.port_num(intf)
diff --git a/yardstick/network_services/vnf_generic/vnf/base.py b/yardstick/network_services/vnf_generic/vnf/base.py
index e32e5fb50..42e3d2a48 100644
--- a/yardstick/network_services/vnf_generic/vnf/base.py
+++ b/yardstick/network_services/vnf_generic/vnf/base.py
@@ -123,6 +123,10 @@ class VnfdHelper(dict):
 
 class VNFObject(object):
 
+    # centralize network naming convention
+    UPLINK = PortPairs.UPLINK
+    DOWNLINK = PortPairs.DOWNLINK
+
     def __init__(self, name, vnfd):
         super(VNFObject, self).__init__()
         self.name = name
diff --git a/yardstick/network_services/vnf_generic/vnf/cgnapt_vnf.py b/yardstick/network_services/vnf_generic/vnf/cgnapt_vnf.py
index 45ef757b3..b5072c194 100644
--- a/yardstick/network_services/vnf_generic/vnf/cgnapt_vnf.py
+++ b/yardstick/network_services/vnf_generic/vnf/cgnapt_vnf.py
@@ -70,8 +70,8 @@ class CgnaptApproxSetupEnvHelper(DpdkVnfSetupEnvHelper):
             interfaces = self.vnfd_helper.interfaces
 
         # fixme: Get private port and gateway from port list
-        priv_ports = self.vnfd_helper.port_pairs.priv_ports
-        return [self._get_ports_gateway(intf["name"]) for intf in priv_ports]
+        uplink_ports = self.vnfd_helper.port_pairs.uplink_ports
+        return [self._get_ports_gateway(intf["name"]) for intf in uplink_ports]
 
 
 class CgnaptApproxVnf(SampleVNF):
diff --git a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
index c240d3778..557009d30 100644
--- a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
+++ b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
@@ -416,8 +416,9 @@ class ClientResourceHelper(ResourceHelper):
 
     def _build_ports(self):
         self.networks = self.vnfd_helper.port_pairs.networks
-        self.priv_ports = self.vnfd_helper.port_nums(self.vnfd_helper.port_pairs.priv_ports)
-        self.pub_ports = self.vnfd_helper.port_nums(self.vnfd_helper.port_pairs.pub_ports)
+        self.uplink_ports = self.vnfd_helper.port_nums(self.vnfd_helper.port_pairs.uplink_ports)
+        self.downlink_ports = \
+            self.vnfd_helper.port_nums(self.vnfd_helper.port_pairs.downlink_ports)
         self.all_ports = self.vnfd_helper.port_nums(self.vnfd_helper.port_pairs.all_ports)
 
     def get_stats(self, *args, **kwargs):
@@ -689,8 +690,8 @@ class SampleVNF(GenericVNF):
         self.context_cfg = None
         self.nfvi_context = None
         self.pipeline_kwargs = {}
-        self.priv_ports = None
-        self.pub_ports = None
+        self.uplink_ports = None
+        self.downlink_ports = None
         # TODO(esm): make QueueFileWrapper invert-able so that we
         #            never have to manage the queues
         self.q_in = Queue()
@@ -704,8 +705,8 @@ class SampleVNF(GenericVNF):
     def _build_ports(self):
         self._port_pairs = PortPairs(self.vnfd_helper.interfaces)
         self.networks = self._port_pairs.networks
-        self.priv_ports = self.vnfd_helper.port_nums(self._port_pairs.priv_ports)
-        self.pub_ports = self.vnfd_helper.port_nums(self._port_pairs.pub_ports)
+        self.uplink_ports = self.vnfd_helper.port_nums(self._port_pairs.uplink_ports)
+        self.downlink_ports = self.vnfd_helper.port_nums(self._port_pairs.downlink_ports)
         self.my_ports = self.vnfd_helper.port_nums(self._port_pairs.all_ports)
 
     def _get_route_data(self, route_index, route_type):
diff --git a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py
index 1b2efe34b..a73c691b9 100644
--- a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py
+++ b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py
@@ -58,8 +58,8 @@ class IxiaResourceHelper(ClientResourceHelper):
             rfc_helper_type = IxiaRfc2544Helper
 
         self.rfc_helper = rfc_helper_type(self.scenario_helper)
-        self.priv_ports = None
-        self.pub_ports = None
+        self.uplink_ports = None
+        self.downlink_ports = None
         self._connect()
 
     def _connect(self, client=None):
diff --git a/yardstick/network_services/vnf_generic/vnf/vpe_vnf.py b/yardstick/network_services/vnf_generic/vnf/vpe_vnf.py
index 72c1514f1..cd4a008ce 100644
--- a/yardstick/network_services/vnf_generic/vnf/vpe_vnf.py
+++ b/yardstick/network_services/vnf_generic/vnf/vpe_vnf.py
@@ -50,13 +50,13 @@ class ConfigCreate(object):
         config.set(tm_q, 'cfg', '/tmp/full_tm_profile_10G.cfg')
         return config
 
-    def __init__(self, priv_ports, pub_ports, socket):
+    def __init__(self, uplink_ports, downlink_ports, socket):
         super(ConfigCreate, self).__init__()
         self.sw_q = -1
         self.sink_q = -1
         self.n_pipeline = 1
-        self.priv_ports = priv_ports
-        self.pub_ports = pub_ports
+        self.uplink_ports = uplink_ports
+        self.downlink_ports = downlink_ports
         self.pipeline_per_port = 9
         self.socket = socket
 
@@ -76,7 +76,7 @@ class ConfigCreate(object):
         return config
 
     def vpe_rxq(self, config):
-        for port in self.pub_ports:
+        for port in self.downlink_ports:
             new_section = 'RXQ{0}.0'.format(port)
             config.add_section(new_section)
             config.set(new_section, 'mempool', 'MEMPOOL1')
@@ -102,7 +102,7 @@ class ConfigCreate(object):
             for k, v in parser.items(pipeline):
                 if k == "pktq_in":
                     if "RXQ" in v:
-                        value = "RXQ{0}.0".format(self.priv_ports[index])
+                        value = "RXQ{0}.0".format(self.uplink_ports[index])
                     else:
                         value = self.get_sink_swq(parser, pipeline, k, index)
 
@@ -110,7 +110,7 @@ class ConfigCreate(object):
 
                 elif k == "pktq_out":
                     if "TXQ" in v:
-                        value = "TXQ{0}.0".format(self.pub_ports[index])
+                        value = "TXQ{0}.0".format(self.downlink_ports[index])
                     else:
                         self.sw_q += 1
                         value = self.get_sink_swq(parser, pipeline, k, index)
@@ -134,9 +134,9 @@ class ConfigCreate(object):
                     if "RXQ" not in v:
                         value = self.get_sink_swq(parser, pipeline, k, index)
                     elif "TM" in v:
-                        value = "RXQ{0}.0 TM{1}".format(self.pub_ports[index], index)
+                        value = "RXQ{0}.0 TM{1}".format(self.downlink_ports[index], index)
                     else:
-                        value = "RXQ{0}.0".format(self.pub_ports[index])
+                        value = "RXQ{0}.0".format(self.downlink_ports[index])
 
                     parser.set(pipeline, k, value)
 
@@ -145,9 +145,9 @@ class ConfigCreate(object):
                         self.sw_q += 1
                         value = self.get_sink_swq(parser, pipeline, k, index)
                     elif "TM" in v:
-                        value = "TXQ{0}.0 TM{1}".format(self.priv_ports[index], index)
+                        value = "TXQ{0}.0 TM{1}".format(self.uplink_ports[index], index)
                     else:
-                        value = "TXQ{0}.0".format(self.priv_ports[index])
+                        value = "TXQ{0}.0".format(self.uplink_ports[index])
 
                     parser.set(pipeline, k, value)
 
@@ -165,7 +165,7 @@ class ConfigCreate(object):
             config = self.vpe_initialize(config)
             config = self.vpe_rxq(config)
             config.write(cfg_file)
-            for index in range(0, len(self.priv_ports)):
+            for index in range(0, len(self.uplink_ports)):
                 config = self.vpe_upstream(vnf_cfg, index)
                 config.write(cfg_file)
                 config = self.vpe_downstream(vnf_cfg, index)
@@ -174,7 +174,7 @@ class ConfigCreate(object):
 
     def generate_vpe_script(self, interfaces):
         rules = PipelineRules(pipeline_id=1)
-        for priv_port, pub_port in zip(self.priv_ports, self.pub_ports):
+        for priv_port, pub_port in zip(self.uplink_ports, self.downlink_ports):
             priv_intf = interfaces[priv_port]["virtual-interface"]
             pub_intf = interfaces[pub_port]["virtual-interface"]
 
@@ -215,8 +215,8 @@ class VpeApproxSetupEnvHelper(DpdkVnfSetupEnvHelper):
 
     def _build_vnf_ports(self):
         self._port_pairs = PortPairs(self.vnfd_helper.interfaces)
-        self.priv_ports = self._port_pairs.priv_ports
-        self.pub_ports = self._port_pairs.pub_ports
+        self.uplink_ports = self._port_pairs.uplink_ports
+        self.downlink_ports = self._port_pairs.downlink_ports
         self.all_ports = self._port_pairs.all_ports
 
     def build_config(self):
@@ -226,8 +226,8 @@ class VpeApproxSetupEnvHelper(DpdkVnfSetupEnvHelper):
         }
 
         self._build_vnf_ports()
-        vpe_conf = ConfigCreate(self.vnfd_helper.port_pairs.priv_ports,
-                                self.vnfd_helper.port_pairs.pub_ports, self.socket)
+        vpe_conf = ConfigCreate(self.vnfd_helper.port_pairs.uplink_ports,
+                                self.vnfd_helper.port_pairs.downlink_ports, self.socket)
         vpe_conf.create_vpe_config(self.scenario_helper.vnf_cfg)
 
         config_basename = posixpath.basename(self.CFG_CONFIG)