Help with BGP setup

Hello Experts,

R1 and R2 are connected with ospf, and they both deliver the link to 1 client, i want to connect both so one link is used and other stays there are redundancy, how can i do this using BGP ? any pointers ? on such scenario would help, where there are more then one link for a single client, and instead of running ospf at the client end we can run BGP with route reflectors with the client.


R1 __________________ Link 1

ISP Client

R2___________________ Link 2


Many thanks,

Can you provide a little bit more information? There are many ways to achieve this.

So you have two routers. And each is connected to an ISP (is it the same or different ISP’s?) and your client will be connecting to a single router? or both routers? Are you using VRRP with a switch in between your routers and the client?

To control traffic, basically you need to set a particular peer with a higher local preference so that it sends all traffic that way. If it’s different ISP’s, there’s no point in doing this because you want to use the most optimized route. To control incoming traffic, you have much less control if you’re using different ISP’s. You can prepend your AS path, but there’s no guarantees. If both links are with the same ISP, they will likely have communities you can advertise to them to control preference on their side, thus allowing you to control active/backup links.

R1 and R2 are example routers, from single ISP, thats us.

We have fiber connection to client and also wireless, but from different pop, thats why i have R1 and R2.

How can we connect both the links and have single client subnet available from both POP, so in case fiber goes down the wireless picks up.

Is this possible via iBGP ? and how.

Thanks for helping.