How to configure priorites for multiple BGP Peers

[jsd281180]

Hi,

At our organisation our routers all have at least 3 BGP peers, each from a different connectivity provider.

The different providers that we use all have different internet transit CDRs.

Is there a way that I can configure a priority for the 3 BGP peers on our routers so that outbound traffic to the internet is sent to the BGP peer from the provider with the highest CDR?

Routers are C2821

[smitesh kharecha]

Hi Joe,

Not sure what you mean by CDR, however as far as BGP is concerned, you have two things when it comes to BGP, one is prefixes learned via BGP ( either iBGP or eBGP) and the communities attached to those prefixes.

So, I assume you want to match particular attribute. You can do that with the help of combination of ACL or AS Path access list and Policy-maps.

Regards,

Smitesh

PS: Please rate helpful posts...

[smehrnia]

Hi Joe,

You can manipulate bgp path selection (in your case) by defining Local Preference for each BGP Peer. the highest the more prefered.

you can either set a default local preference for ur Peers or use route-maps to define Local_perf for a set of prefixes.

you can find more:

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800c95bb.shtml#localpref

plz Rate if it helped,

Soroush.