Comments on: BGP Route Reflector Basics

By: jason

jason — Sun, 11 Sep 2011 15:56:38 +0000

Brute-Force – Yes, the route reflector client will advertise a route received from the RR to its EBGP peer. No network statement required.

Sagar – No AS-Path change during IBGP or IBGP RR operation. It will only be prepending when leaving the AS when advertised to an EBGP peer.

By: Gaurav

Gaurav — Fri, 19 Aug 2011 06:50:45 +0000

Dear all,

It’s a good and simple way of explaning RR and operation of RR.

I have a question..

If a RR received a ASN X route from two different clients than is RR reflect route received from one client to other.
I considered, 1st client route is best.

By: Sagar

Sagar — Wed, 27 Jul 2011 03:41:21 +0000

Good Explanation. Just curious, if there is any involvement of AS-PATH during RR operation.

By: Brute-force

Brute-force — Tue, 19 Jul 2011 09:03:59 +0000

Let’s say your route-reflector client has an EBGP peer.
Does the route-reflector client advertise prefixes received from Route-Reflector automatically to it’s EBGP peer without any network statement?

By: Pera

Pera — Tue, 07 Jun 2011 15:00:39 +0000

Kevin: the only neighbor that RR Client is configured to see is the RR as a regular iBGP neighbor (route reflector clients don’t know they are the clients; all the RR specific configuration is on the RR).
Therefore, in your example the RR is a single point of failure. You may want to configure cluster with two RRs to avoid this.

By: Trevene Leonard

Trevene Leonard — Wed, 01 Jun 2011 05:46:44 +0000

This is very informative. Thank you

By: Rishabh

Rishabh — Fri, 27 May 2011 11:12:34 +0000

Very good explanation…!!!

By: Mohsin

Mohsin — Sun, 15 May 2011 14:55:32 +0000

Nice explaination

By: Kevin

Kevin — Sun, 10 Apr 2011 20:12:18 +0000

Let’s say a 3-router AS contains a single RR. The other 2 routers are clients of the RR. What happens if the RR fails? Will the 2 clients of the RR eventually realize the failure, and revert to full-mesh IBGP with each other?

By: Rajesh VP

Rajesh VP — Thu, 07 Apr 2011 09:35:09 +0000

Thank you. Its loud and clear