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Diffstat (limited to 'docs/testing/user')
| -rw-r--r-- | docs/testing/user/configguide/trafficgen.rst | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/docs/testing/user/configguide/trafficgen.rst b/docs/testing/user/configguide/trafficgen.rst index 33824486..061d3d7a 100644 --- a/docs/testing/user/configguide/trafficgen.rst +++ b/docs/testing/user/configguide/trafficgen.rst @@ -795,6 +795,13 @@ It is neccesary for proper connection between Trex server and VSPERF. Firewall must allow a connection from DUT (VSPERF) to the T-Rex server running at TCP port 4501. +**NOTE:** For high speed cards it may be advantageous to start T-Rex with more transmit queues/cores. + +.. code-block:: console + + cd trex-cores/scripts/ + ./t-rex-64 -i -c 10 + For additional information about Trex stateless mode see Trex stateless documentation: https://trex-tgn.cisco.com/trex/doc/trex_stateless.html @@ -862,6 +869,22 @@ modified. Enable Promiscuous mode when doing multistream at layer 2 testing with TRAFFICGEN_TREX_PROMISCUOUS=True +Card Bandwidth Options +~~~~~~~~~~~~~~~~~~~~~~ + +T-Rex API will attempt to retrieve the highest possible speed from the card using internal +calls to port information. If you are using two separate cards then it will take the lowest +of the two cards as the max speed. If necessary you can try to force the API to use a +specific maximum speed per port. The below configurations can be adjusted to enable this. + +.. code-block:: console + + TRAFFICGEN_TREX_FORCE_PORT_SPEED = True + TRAFFICGEN_TREX_PORT_SPEED = 40000 # 40 gig + +**Note::** Setting higher than possible speeds will result in unpredictable behavior when running +tests such as duration inaccuracy and/or complete test failure. + RFC2544 Validation ~~~~~~~~~~~~~~~~~~ |