iBGP RR route-map processing

[mbrown]

I ran across a document named "BGP Case Studies" earlier this week:

http://www.cisco.com/warp/public/459/bgp-toc.html

It has a line that says:

"The set clause for outbound route maps does not affect routes that reflect to iBGP peers"

This means just reflected routes (client -> route reflector -> other client), right? I think the RR should still be able to set properties on his own updates sent to RR clients.

Anyone know this for certain? I don't have a lab setup to test this....

Thanks!

-Mason

[jackyoung]

According to this article and section. Yes, because you only apply the route-map to the RR client. Only if you also apply the route-map to the iBGP peer, then it will also affect the routes to iBGP peer.

Hope this helps.

[Harold Ritter]

Changing attributes on updates received from eBGP peers is not an issue and should work just fine even on the RR.

A route-map will allow you to change certain attributes even on reflected routes. Routing loops can be introduced if not used carefully.

Hope this helps,