[c-nsp] BGP load balancing with dCEF

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Tue Oct 10 04:43:54 EDT 2006


cisco-nsp-bounces at puck.nether.net <> wrote on :

> Hi all,
> 
> We're having trouble doing per-destination load balancing on outgoing
> BGP traffic over 4 x E1 links. It's a 7507 (12.0(26)S) with dCEF
> enabled (globally and on the interfaces). Whenever I do a show ip cef
> xxx.xx, there's only 1 next-hop entry instead of 4. How do I get all 4
> next-hop entries to be installed?

Are you installing multiple BGP paths into your RIB, i.e. did you
specify "maximum-paths 4" in your BGP config, or how is your setup?
Please show a "show ip bgp <prefix>", "show ip route <bgp-prefix>" and
"show ip route <bgp-next-hop-of-this-prefix>".

	ol



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