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-rw-r--r--docs/testing/user/userguide/opnfv_yardstick_tc076.rst63
1 files changed, 53 insertions, 10 deletions
diff --git a/docs/testing/user/userguide/opnfv_yardstick_tc076.rst b/docs/testing/user/userguide/opnfv_yardstick_tc076.rst
index ac7bde794..1e7647fa6 100644
--- a/docs/testing/user/userguide/opnfv_yardstick_tc076.rst
+++ b/docs/testing/user/userguide/opnfv_yardstick_tc076.rst
@@ -19,14 +19,20 @@ Yardstick Test Case Description TC076
| | TCP segment error rate and UDP datagram error rate |
| | |
+--------------+--------------------------------------------------------------+
-|test purpose | Monitor network metrics provided by the kernel in a host and |
-| | calculate IP datagram error rate, ICMP message error rate, |
-| | TCP segment error rate and UDP datagram error rate. |
+|test purpose | The purpose of TC076 is to evaluate the IaaS network |
+| | reliability with regards to IP datagram error rate, ICMP |
+| | message error rate, TCP segment error rate and UDP datagram |
+| | error rate. |
| | |
-+--------------+--------------------------------------------------------------+
-|configuration | file: opnfv_yardstick_tc076.yaml |
+| | TC076 monitors network metrics provided by the Linux kernel |
+| | in a host and calculates IP datagram error rate, ICMP |
+| | message error rate, TCP segment error rate and UDP datagram |
+| | error rate. |
| | |
-| | There is no additional configuration to be set for this TC. |
+| | The purpose is also to be able to spot the trends. |
+| | Test results, graphs and similar shall be stored for |
+| | comparison reasons and product evolution understanding |
+| | between different OPNFV versions and/or configurations. |
| | |
+--------------+--------------------------------------------------------------+
|test tool | nstat |
@@ -34,6 +40,25 @@ Yardstick Test Case Description TC076
| | nstat is a simple tool to monitor kernel snmp counters and |
| | network interface statistics. |
| | |
+| | (nstat is not always part of a Linux distribution, hence it |
+| | needs to be installed. nstat is provided by the iproute2 |
+| | collection, which is usually also the name of the package in |
+| | many Linux distributions.As an example see the |
+| | /yardstick/tools/ directory for how to generate a Linux |
+| | image with iproute2 included.) |
+| | |
++--------------+--------------------------------------------------------------+
+|test | Ping packets (ICMP protocol's mandatory ECHO_REQUEST |
+|description | datagram) are sent from host VM to target VM(s) to elicit |
+| | ICMP ECHO_RESPONSE. |
+| | |
+| | nstat is invoked on the target vm to monitors network |
+| | metrics provided by the Linux kernel. |
++--------------+--------------------------------------------------------------+
+|configuration | file: opnfv_yardstick_tc076.yaml |
+| | |
+| | There is no additional configuration to be set for this TC. |
+| | |
+--------------+--------------------------------------------------------------+
|references | nstat man page |
| | |
@@ -43,19 +68,37 @@ Yardstick Test Case Description TC076
|applicability | This test case is mainly for monitoring network metrics. |
| | |
+--------------+--------------------------------------------------------------+
-|pre_test | |
-|conditions | |
+|pre_test | The test case image needs to be installed into Glance |
+|conditions | with fio included in it. |
+| | |
+| | No POD specific requirements have been identified. |
| | |
+--------------+--------------------------------------------------------------+
|test sequence | description and expected result |
| | |
+--------------+--------------------------------------------------------------+
-|step 1 | The pod is available. |
-| | Nstat is invoked and logs are produced and stored. |
+|step 1 | Two host VMs are booted, as server and client. |
+| | |
++--------------+--------------------------------------------------------------+
+|step 2 | Yardstick is connected with the server VM by using ssh. |
+| | 'ping_benchmark' bash script is copyied from Jump Host to |
+| | the server VM via the ssh tunnel. |
+| | |
++--------------+--------------------------------------------------------------+
+|step 3 | Ping is invoked. Ping packets are sent from server VM to |
+| | client VM. RTT results are calculated and checked against |
+| | the SLA. nstat is invoked on the client vm to monitors |
+| | network metrics provided by the Linux kernel. IP datagram |
+| | error rate, ICMP message error rate, TCP segment error rate |
+| | and UDP datagram error rate are calculated. |
+| | Logs are produced and stored. |
| | |
| | Result: Logs are stored. |
| | |
+--------------+--------------------------------------------------------------+
+|step 4 | Two host VMs are deleted. |
+| | |
++--------------+--------------------------------------------------------------+
|test verdict | None. |
| | |
+--------------+--------------------------------------------------------------+