From: Toh Soon, Lim (tohsoon28@gmail.com)
Date: Mon Jul 30 2007 - 01:50:23 ART
Hi All,
In a BGP route reflector design with dual RRs and all RR clients have iBGP
sessions to both RRs, what's the implication if I don't configure both RRs
in the same cluster (using the command "bgp cluster-id")?
If both RRs are configured to the same cluster ID, I notice the following
issue:
If the BGP sessions between Client1-RR2 and Client2-RR1 are down at the same
time, Client1 would not be able to learn the routes from Client2 and vice
versa, due to the fact that the RRs will ignore each others' routes after
seeing its own cluster ID in the CLUSTER_LIST.
Kindly shed some light on the above issue, and whether it's advisable to
configure the RRs in the same cluster.
Thank you.
B.Rgds,
Lim TS
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