[cisco-bba] 7206VXR not able to hold BGP table of any size.

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Fri May 4 02:57:16 EDT 2007


Bob Rosebrock <> wrote on Thursday, May 03, 2007 5:56 PM:

> Good Morning!!!
>
> I have a 7206VXR that is not holding a BGP table of any size and
> contineully eats up the CPU and makes the router unusable. 
> 
> interface FastEthernet1/0
>  ip address 208.67.xxx.xxx 255.255.255.252
>  duplex full
> !
> router bgp 32015
>  no synchronization
>  bgp log-neighbor-changes
>  neighbor 208.67.xxx.x remote-as 32015
>  no auto-summary
> !
> ip route 0.0.0.0 0.0.0.0 208.67.xxx.x

Chances are you receive the route to the BGP next-hop(s) via BGP, so
you'll end up in a recursion loop. 
Two solutions (in the order of preference):

1) configure an IGP (OSPF, etc.) to provide reachability to the
next-hops
2) Assuming the "neighbor 208.67.xxx.x" is actually the adjacent
router's address on your FastEth1/0, manually change the next-hop on
this router using

 neighbor 208.67.xxx.x route-map SET-NH in

 route-map SET-NH
  set ip next-hop peer-address 

Hiding IP addresses in this case makes it difficult to properly
troubleshoot..

	oli



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