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doc: clarify usage of testpmd MAC forward mode

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Explain default testpmd behavior in mac fwd mode to remove
amiguity/confusion regarding user's ability to specify Ethernet
addresses.

Signed-off-by: Mark Kavanagh <mark.b.kavanagh@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
This commit is contained in:
Mark Kavanagh 2016-09-09 17:15:52 +01:00 committed by Thomas Monjalon
parent 0e51eb8741
commit a67857e97b
1 changed files with 3 additions and 0 deletions
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doc/guides/testpmd_app_ug/testpmd_funcs.rst
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@ -270,6 +270,9 @@ The available information categories are:
This is the default mode.
* ``mac``: Changes the source and the destination Ethernet addresses of packets before forwarding them.
Default application behaviour is to set source Ethernet address to that of the transmitting interface, and destination
address to a dummy value (set during init). The user may specify a target destination Ethernet address via the 'eth-peer' or
'eth-peer-configfile' command-line options. It is not currently possible to specify a specific source Ethernet address.
* ``macswap``: MAC swap forwarding mode.
Swaps the source and the destination Ethernet addresses of packets before forwarding them.