[c-nsp] BFD CPU hog and traceback on me3600 and isis flapping 15.3(3)S1a

Mark Tinka mark.tinka at seacom.mu
Wed Mar 19 09:06:17 EDT 2014


On Wednesday, March 19, 2014 02:56:02 PM Pete Lumbis wrote:

> Just to close the loop on the thread, I spoke to OP
> off-list and this matches CSCug77067. When an FRR event
> (either TE FRR or IP FRR) occurs the processes
> prioritization for BFD and the FRR event doesn't do what
> it's supposed to and BFD triggers a CPU hog. It's also
> possible, as Adam saw, for BFD neighbors to flap. This
> is fixed in 15.4.1S1 and 15.3.3S2

Pete, is this only when BFD is enabled for the IGP, or when 
BFD is enabled for RSVP-TE?

Or does this not matter at all?

Mark.
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