BGP Route reflector

[gatewaysys]

Hi,

In a BGP cluster we can configure more than one route reflector (RR). How can we configure one router is primary RR and other one is secondary and What is criteria required for a router to become primary or secondary RR.

Is their any command to configure above setup.

[pkhatri]

Hi,

There is no concept of a primary or secondary route reflector in BGP, and as a result, there is no command to enable this.

If you have more than one RR in a cluster, just make sure of the following:

* configure the same cluster ID on both

* ensure that all clients peer with all route reflectors

* ensure that there is a full mesh of IBGP sessions between RRs in the cluster.

Pls rate this post if you find it useful.

Hope that helps,

Paresh.

[pkhatri]

Hi,

Just an addition to my last post. You can artifically create a primary/secondary/tertiary relationship with your RRs by assigning the routes learnt from them different weights. For example:

neighbor weight 100 ! backup RR

neighbor weight 200 ! primary RR

That way, the routes received from RR2 will be installed in the routing table as the active routes. If RR2 fails, the routes learned from RR1 will be installed.

Cheers,

Paresh.