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authorChristian Trautman <ctrautma@redhat.com>2017-10-04 10:34:46 -0400
committerMartin Klozik <martinx.klozik@intel.com>2017-10-20 09:43:20 +0000
commitd4054052bdc6d9417e27f81f2434bcf1f2149972 (patch)
treee1fc94636944b02ae869f3d72e73c7a127def790 /docs/testing/user/configguide
parent9d2900035923bf307477c5b4b8dc423ba1b2086f (diff)
trex_multistream: Add multistream support to T-Rex
Adds incremental source multi-stream functionality to T-Rex traffic generator code in VSPerf. JIRA: VSPERF-532 Change-Id: Ib5ba326699d89350ac1715c9a4276e5fa46a133e Signed-off-by: Christian Trautman <ctrautma@redhat.com>
Diffstat (limited to 'docs/testing/user/configguide')
-rw-r--r--docs/testing/user/configguide/trafficgen.rst11
1 files changed, 7 insertions, 4 deletions
diff --git a/docs/testing/user/configguide/trafficgen.rst b/docs/testing/user/configguide/trafficgen.rst
index 2d2b9a9e..7caa501e 100644
--- a/docs/testing/user/configguide/trafficgen.rst
+++ b/docs/testing/user/configguide/trafficgen.rst
@@ -811,7 +811,7 @@ Example of this configuration is in conf/03_traffic.conf or conf/10_custom.conf.
TRAFFICGEN_TREX_USER has to have sudo permission and passwordless access.
TRAFFICGEN_TREX_BASE_DIR is the place, where is stored 't-rex-64' file.
-It is possible to specify the accurancy of RFC2544 Throughput measurement.
+It is possible to specify the accuracy of RFC2544 Throughput measurement.
Threshold below defines maximal difference between frame rate of successful
(i.e. defined frameloss was reached) and unsuccessful (i.e. frameloss was
exceeded) iterations.
@@ -822,14 +822,17 @@ Default value of this parameter is defined in conf/03_traffic.conf as follows:
TRAFFICGEN_TREX_RFC2544_TPUT_THRESHOLD = ''
-SR-IOV
-~~~~~~
+SR-IOV and Multistream layer 2
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
T-Rex by default only accepts packets on the receive side if the destination mac matches the
-MAC address specificed in the /etc/trex-cfg.yaml on the server side. For SR-IOV this creates
+MAC address specified in the /etc/trex-cfg.yaml on the server side. For SR-IOV this creates
challenges with modifying the MAC address in the traffic profile to correctly flow packets
through specified VFs. To remove this limitation enable promiscuous mode on T-Rex to allow
all packets regardless of the destination mac to be accepted.
+This also creates problems when doing multistream at layer 2 since the source macs will be
+modified. Enable Promiscuous mode when doing multistream at layer 2 testing with T-Rex.
+
.. code-block:: console
TRAFFICGEN_TREX_PROMISCUOUS=True