[c-nsp] 12.2(33)SRCx - Pseudo Pre-emption Handler - BFD Bug

Raymond, Steven Steven.Raymond at integratelecom.com
Thu Feb 26 11:01:38 EST 2009

BFD has became unusable for us with SRC3 (coming from SRB3).  It misfires and falsely reports the BFD neighbor down several times per hour, sending waves of disruption across the network.

Thus far the only workaround is to disable BFD.  We thought it may be a return of CSCek71050 which abused us in SRB1 and caused strikingly similar problems.  But TAC has assured me they must be different causes.

Are your BFD problems causing only reboots, or BFD bounces followed by worse behavior?


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Mark Tinka
> Sent: Wednesday, February 25, 2009 9:42 AM
> To: Dan Peachey
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] 12.2(33)SRCx - Pseudo Pre-emption Handler - BFD Bug
> On Thursday 26 February 2009 01:25:34 am Dan Peachey wrote:
> > Do you have the bug ID for this?
> CSCek75694 and CSCsq32269
> > I am currently
> > evaluating SRC2 and would be interested in reading up on
> > it.
> I'd recommend staying away from SRC2 - it's riddled with a
> number of "discovered" bugs. I'd suggest you consider SRC3
> instead, if you're looking at 12.2SR.
> Just don't run BFD!
> Cheers,
> Mark.

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