I have a Cisco 6509 w/ Sup720-3BXL. Upon bootup, and receiving 2x full internet BGP tables (250K routes each) from 2 different ISPs, an then sending the full tables to 6 ibgp peers and receiving approximately 700 prefixes total from the 6 i bgp peers.
The router starts with the following error:
MLSCEF-DFC4-4-FIB_EXCEPTION: FIB TCAM exception for IPv4 unicast, Some routes will be software switched.Use "mls cef maximum-routes" to modify FIB TCAM partition
At that time, the router starts to switch things in software and I can see the BGP out Queues for the ibgp peers have like 800, and cpu spikes to 99-100% for hours unless I reboot the router.
I have already done "mls cef maximum-routes 239K"
I do have 4x 8port 1gb etherchannels connected to this router (each is for a iBGP peer), with 2 route-maps applied to the interfaces if that makes any difference.
The Router is pushing about 15gb of traffic.
Please, any help is greatly appreciated.
Thank you so much.