On 12/06/2012 15:21, Jim Trotz wrote: > FIB TCAM maximum routes : (BGP routes in table = 408K) > ======================= > Current :- > ------- > IPv4 + MPLS - 512k (default) > IPv6 + IP Multicast - 256k (default)
Jim, when you enable ipv6 and when things slow down, can you post the output of the following commands: Router# show mls cef summary Router# show platform hardware capacity forwarding Also, as someone else pointed out, are you using ipv6 urpf? This causes all ipv6 packets on a PFC3 to be punted. This is configured at the interface using the command: "ipv6 verify unicast reverse-path". Are you forwarding lots of ipv6 fragments? These can also be process-switched unless you use the "platform ipv6 acl fragment hardware forward" command (don't enable this unless you understand the consequences of it). Finally, have you seen any sign of the following message in your logs: %CFIB-7-CFIB_EXCEPTION: FIB TCAM exception, Some entries will be software switched This is the canonical message to say that you've bust your tcam limits and basically everything on the box will be punted from there onwards. The only way to recover from this is to reload the router after configuring your box not to bust its tcam limits. Nick _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
