Charley Kline wrote: > Line card problems on the 40G are nightmares to diagnose. We had a > similar problem on a couple of ours that they worked on for months, > complete with special instrumentation on the LP's and an engineer on- > site. They finally isolated it to too much broadcast traffic (ARPs, > due to a network loop somewhere) overwhelming the LP, which then > stopped responding. > > Things seem much better at 2.3.0d, for what it's worth. We also
They (foundry) suggested an upgrade to 2.3.0d, which I did last monday. I'd like to add that the problem seems packet processor specific. The same lock-up behaviour occured on a 40x1G port line card. That card has 4 PPCR's and the 10 ports associated with PPCR 1 where dead. All others were still forwarding traffic. > configured "arp-port-rate-limit 200" per their recommendation to > protect the LP from too much broadcast traffic. > > /cvk > > > > On Jun 27, 2007, at 6:53a, Henk.Roose at cwi.nl wrote: > > > Hello *, > > > > I have an NI40G that keeps locking up interfaces at random (could be > > conce a week, every two weeks or once a month or so). It's > > multihomed BGP > > connected 10 Gig (primary) and 1 Gig (backup) to two Avici's > > upstream. I'm > > getting full feeds over both interfaces. Now, what happens is that one > > of the line cards seems to stop forwarding traffic which causes the > > BGP > > sessions to die and I end up with my peerings in Connect state forever > > (until I power off/on or reload). I haven't got the slightest idea > > what > > the cause might be. Anyone experienced this before? I have a call > > open > > at Foundry's but they haven't come up with anything so far. > > > > I'm running 2.3.0a btw. > _______________________________________________ > foundry-nsp mailing list > foundry-nsp at puck.nether.net > http://puck.nether.net/mailman/listinfo/foundry-nsp Henk -- Henk Roose CWI - Centrum voor Wiskunde en Informatica Centre for Mathematics and Computer Science Amsterdam (NL)
