On 08 Feb 2014, at 08:54, Arne Larsen / Region Nordjylland <[email protected]> wrote:
> Hi all. > > We are having a problem with Windows DHCPv6 SSM multicast packets on our > network. > We aren't running ipv6 or multicast, so all SSM packets are sent to the > processor on the 6500 which is a sup720-3B with a pfc3b cards > This makes the load on the cpu very high. > We are running s72033-ipservicesk9_wan-mz.122-18.SXF13.bin on one box and > s72033-adventerprisek9_wan-mz.122-33.SXJ2.bin on the other. > Can someone give me a hint how to get around this. First of all - update the IOS, as those versions are way old (but this is not directly connected to the problem you’re seeing). Next, try to configure multicast defence with mls rate-limit - the specific values should be tuned to your network. Start here and then follow up to the configuration guides: https://supportforums.cisco.com/docs/DOC-21218 -- "There's no sense in being precise when | Łukasz Bromirski you don't know what you're talking | jid:[email protected] about." John von Neumann | http://lukasz.bromirski.net _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
