[c-nsp] BGP load balancing (outbound)

Anton Kapela tkapela at gmail.com
Mon May 17 10:59:34 EDT 2010


On Mon, May 17, 2010 at 10:42 AM, Andrew Tolstykh <andrew at atfam.com> wrote:
> Just a shot in the dark, but I don't see load balancing enabled in your configuration snippet:
>
> router bgp xxxxx

This question comes up semi-often, perhaps there ought to be a FAQ? (I
may have missed it).

For different-upstream AS's, ecmp will not normally occur. You'll need
to adjust the bgp bestpath determination functions, else the different
next-AS's will prevent ECMP forwarding from being pushed to the FIB.

http://puck.nether.net/pipermail/cisco-nsp/2005-November/025993.html

-Tk


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