[c-nsp] BGP local preference

[Frotzler, Florian]

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Michael Robson
> Sent: Dienstag, 23. Jänner 2007 11:26
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] BGP local preference
> 
> I am administering a Cisco 6500-based core (Sup720s) where I 
> am exchanging routes with edge sites using eBGP. Each site 
> has an uplink to 2 separate core routers and I am using a 
> route map to set the local preference so that the core always 
> prefers one of the site links over the other. I would also 
> like to affect the default route that we are sending them so 
> that when they send traffic out, it prefers the same link, 
> but it appears that you cannot set a local preference on the 
> way out of a router (I guess that's why it's called a "local 
> preference). Is there another way to affect the route to 
> achieve this "default route affecting" (this would be 
> preferred over the site setting the local preference).

The local preference is indeed local to the AS, but the MED attribute was designed to exactly achieve what you want :)

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094934.shtml

 
> Thanks,
> 
> Michael.

Cheers,
Florian
 
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