Hi Mike,

Thanks a lot for the patch.

Previously the noisy neighbour vnf simulation would only operate in io
mode, forwarding packets as is. However, this limited the usefulness of
noisy neighbour simulation.

This feature has now been expanded into all forwarding modes except for
ieee1588, where it isn't relevant; and iofwd, which would otherwise be
duplicative of noisy mode.

Well I would first like to know, why we need noisy neighbor for all modes
IMHO, do we need to add code to each mode, if most users don't use it.

Secondly, can't we achieve same behavior by running testpmd instances in 
parallel on same NUMA node. Where one testpmd is in noisy mode.  

Signed-off-by: Mike Pattrick <mkp@redhat.com>

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