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-rw-r--r--docs/testing/user/configguide/trafficgen.rst43
1 files changed, 42 insertions, 1 deletions
diff --git a/docs/testing/user/configguide/trafficgen.rst b/docs/testing/user/configguide/trafficgen.rst
index 4b9eec6e..33824486 100644
--- a/docs/testing/user/configguide/trafficgen.rst
+++ b/docs/testing/user/configguide/trafficgen.rst
@@ -44,7 +44,8 @@ and is configured as follows:
'stream_type' : 'L4',
'pre_installed_flows' : 'No', # used by vswitch implementation
'flow_type' : 'port', # used by vswitch implementation
-
+ 'flow_control' : False, # supported only by IxNet
+ 'learning_frames' : True, # supported only by IxNet
'l2': {
'framesize': 64,
'srcmac': '00:00:00:00:00:00',
@@ -67,6 +68,13 @@ and is configured as follows:
'priority': 0,
'cfi': 0,
},
+ 'capture': {
+ 'enabled': False,
+ 'tx_ports' : [0],
+ 'rx_ports' : [1],
+ 'count': 1,
+ 'filter': '',
+ },
}
The framesize parameter can be overridden from the configuration
@@ -783,6 +791,10 @@ It is neccesary for proper connection between Trex server and VSPERF.
cd trex-core/scripts/
./t-rex-64 -i
+**NOTE:** Please check your firewall settings at both DUT and T-Rex server.
+Firewall must allow a connection from DUT (VSPERF) to the T-Rex server running
+at TCP port 4501.
+
For additional information about Trex stateless mode see Trex stateless documentation:
https://trex-tgn.cisco.com/trex/doc/trex_stateless.html
@@ -826,6 +838,15 @@ Default value of this parameter is defined in conf/03_traffic.conf as follows:
TRAFFICGEN_TREX_RFC2544_TPUT_THRESHOLD = ''
+T-Rex can have learning packets enabled. For certain tests it may be beneficial
+to send some packets before starting test traffic to allow switch learning to take
+place. This can be adjusted with the following configurations:
+
+.. code-block:: console
+
+ TRAFFICGEN_TREX_LEARNING_MODE=True
+ TRAFFICGEN_TREX_LEARNING_DURATION=5
+
SR-IOV and Multistream layer 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
T-Rex by default only accepts packets on the receive side if the destination mac matches the
@@ -840,3 +861,23 @@ modified. Enable Promiscuous mode when doing multistream at layer 2 testing with
.. code-block:: console
TRAFFICGEN_TREX_PROMISCUOUS=True
+
+RFC2544 Validation
+~~~~~~~~~~~~~~~~~~
+
+T-Rex can perform a verification run for a longer duration once the binary search of the
+RFC2544 trials have completed. This duration should be at least 60 seconds. This is similar
+to other traffic generator functionality where a more sustained time can be attempted to
+verify longer runs from the result of the search. This can be configured with the following
+params
+
+.. code-block:: console
+
+ TRAFFICGEN_TREX_VERIFICATION_MODE = False
+ TRAFFICGEN_TREX_VERIFICATION_DURATION = 60
+ TRAFFICGEN_TREX_MAXIMUM_VERIFICATION_TRIALS = 10
+
+The duration and maximum number of attempted verification trials can be set to change the
+behavior of this step. If the verification step fails, it will resume the binary search
+with new values where the maximum output will be the last attempted frame rate minus the
+current set thresh hold.