On (2009-07-21 09:33 +0100), Phil Mayers wrote: Hey,
> Obviously one thing to look at is broadcast storm control on the > 6500s. However, from what I can make it it's rather primitive; the > rate of broadcast traffic is capped only in 1-second windows and > doesn't take account of packet-size? Does anyone have any experience > of it? Does it work well. storm-control works just fine. But unfortunately for WS-X6704-10GE minimum amount of 0.34% which is too much for the box to handle without starting to flap BGP/LDP/IS-IS etc. Even if you could limit them to acceptable level, you'll still be looping unknown unicast, unless you've explicitly stopped forwarding them (which implies you must have only 1 switch or you've synchronized ARP timeout with MAC timeout). > Is it more subtle, and the SP is being overwhelmed by the punt? We > run CoPP but obviously that's layer3. I don't have any layer2 MLS > rate-limiters enabled, and since they're per-box rather than > per-port I doubt they'd help. My guess would be this also, that you simply overloaded the SUP. Maybe if you can recreate it in controlled environment, you could see what the software is doing and maybe even find way to protect yourself. -- ++ytti _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
