[c-nsp] BGP outbound loadsharing

Kevin Loch kloch at kl.net
Fri Jan 23 11:00:34 EST 2009


If you are taking full routes you can do manual traffic engineering
(localpref certain as-paths higher/lower between the two links).
There are also commercial products that will do this automatically
for you (Avaya CNA, Internap FCP etc).

If you have connections to differnt ISPs and cannot
take full routes then requesting partial routes
and/or filtering received routes may enable you to
do some path based TE.

If you have multiple links to the same ISP you can
set maximum-paths for bgp to install multiple next-hops
for the same path in the fib.

- Kevin

Dracul wrote:
> Hi List,
> 
> Does anyone have a recommended design (configuration) for BGP to
> utilize/loadshare all outbound traffic? usually the behaviour i'm getting is
> that my BGP only utilizes
> one link for outbound. is OER ( Performance Routing ) recommended?
> 
> regards,
> chris
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