[ovs-dev] [PATCH v2] ipfix: Skip BFD packets.

Ben Pfaff blp at ovn.org
Wed Dec 2 03:45:33 UTC 2015


On Tue, Dec 01, 2015 at 06:43:49PM -0800, Wenyu Zhang wrote:
> The patch is to skip BFD packets in ipfix.
> Bidirectional Forwarding Detection (BFD) packets are for monitoring
> the tunnel link status and consumed by ovs itself, no need to sample
> them.
> Refer to IETF RFC 5881, BFD control packets are the UDP packets with
> destination port 3784 and BFD echo packets are the UDP packets with dst
> destination port 3785.
> Ipfix will skip both BFD control packets and BFD echo packets.
> 
> Signed-off-by: Wenyu Zhang <wenyuz at vmware.com>

Does this reduce the accuracy of the estimate of the total number of
packets?  If so, can that be fixed?



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