Tuesday, March 13, 2018

Favor routes to different ISP's via BGP

I have this setup (see link to diagram). 2 edge routers advertising a /16 to 2 providers. We are receiving summary routes from each provider. I would like to influence routes that are learned on each ASR out different ISPs. For example, I would like 8.8.8.8 to go out the Primary and 4.4.4.4 to go out the Secondary. I have a iBGP connection between 1_ASR and 2_ASR. I was thinking about using local preference, but I don't see how to apply that to a single route. Any help would be appreciated.

Diagram is here:

https://imgur.com/a/MsUeU



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