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diff --git a/docs/testing/user/userguide/advanced.rst b/docs/testing/user/userguide/advanced.rst index e49cfab..b36f01e 100644 --- a/docs/testing/user/userguide/advanced.rst +++ b/docs/testing/user/userguide/advanced.rst @@ -350,3 +350,79 @@ Example of run: # The --force-cleanup option will do the same but without prompting for confirmation. + +Service mode for TRex +--------------------- + +The ``--service-mode`` option allows you to capture traffic on a TRex window during the NFVBench test. Thus, you will be +able to capture packets generated by TRex to observe many information on it. + +Example of use : + +.. code-block:: bash + + nfvbench ``--service-mode`` + +.. note:: It is preferable to define the minimum rate (2002 pps) to have a better capture + +In another bash window, you should connect to the TRex console doing : + +.. code-block:: bash + + cd /opt/trex/vX.XX/ #use completion here to find your corresponding TRex version + ./trex-console -r + capture start monitor --rx [port number] -v + +Start this capture once you have started the NFVBench test, and you will observe packets on the TRex console : + +.. code-block:: bash + + #26342 Port: 0 ◀── RX + + trex(read-only)> + + Type: UDP, Size: 66 B, TS: 26.30 [sec] + + trex(read-only)> + ###[ Ethernet ]### + dst = a0:36:9f:7a:58:8e + src = fa:16:3e:57:8f:df + type = 0x8100 + ###[ 802.1Q ]### + prio = 0 + id = 0 + vlan = 1093 + type = 0x800 + ###[ IP ]### + version = 4 + ihl = 5 + tos = 0x1 + len = 46 + id = 65535 + flags = + frag = 0 + ttl = 63 + proto = udp + chksum = 0x8425 + src = 120.0.0.0 + dst = 110.0.17.153 + \options \ + ###[ UDP ]### + sport = 53 + dport = 53 + len = 26 + chksum = 0xfd83 + ###[ Raw ]### + load = "xx\xab'\x01\x00?s\x00\x00\xbci\xf0_{U~\x00" + ###[ Padding ]### + load = '6\x85' + +Check on the NFVBench window that the following log appears just before the testing phase : + +.. code-block:: bash + + 2019-10-21 09:38:51,532 INFO Starting to generate traffic... + 2019-10-21 09:38:51,532 INFO Running traffic generator + 2019-10-21 09:38:51,541 INFO ``Service mode is enabled`` + 2019-10-21 09:38:52,552 INFO TX: 2004; RX: 2003; Est. Dropped: 1; Est. Drop rate: 0.0499% + 2019-10-21 09:38:53,559 INFO TX: 4013; RX: 4011; Est. Dropped: 2; Est. Drop rate: 0.0498%
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