[j-nsp] Juniper M120 - PPM causing issues for BFD

sthaug at nethelp.no sthaug at nethelp.no
Sat Dec 18 14:48:58 EST 2010


> you could try this knob: "set routing-options ppm no-delegate-processing"

Yes, that would make BFD run on the RE. As the original poster assumed,
the performance is indeed lower.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no


> 
> On Wed, Dec 1, 2010 at 4:05 AM, Payam Chychi <pchychi at gmail.com> wrote:
> 
> > Hi,
> >
> > I was wondering if anyone else has had issues with M based routers and PPM,
> > if so, any advice would be greatly appreciated.
> >
> > Here is my situation:
> > - I have a m120 router that is now running BFD and IS-IS on a few links and
> > OSPF on a few other links (no problem here)
> > - when I take a backup feb out of backup (N+1 group) and map it to a fpc,
> > the router drops all ISIS neighbors.
> >
> > A deeper look into the issue showed that ISIS is dropping because of BFD, a
> > 3rd look showed that BFD was dieing due to the PPM
> >
> > I'm assuming that the issue is related with PPM running on both feb and re.
> > Are there any caveats in disabling PPM on the FEB and letting it run only
> > on the RE?
> >
> > I assume the performance would be lower as its done in software vs the hw
> > FEB but i cant imagine the difference to be noteworthy
> >
> > Thanks
> > Payam
> >
> >
> >
> > _______________________________________________
> > juniper-nsp mailing list juniper-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/juniper-nsp
> >
> 
> 
> 
> -- 
> BR!
> 
> 
> 
>            James Chen
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
> 


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