Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

MP-BGP Router Reflectot (RR) Default Behaviour

Hi All,

I have a 7206VXR configured like RR for MPBGP (Afi/safi 1/128 L3VPN rfc 2547Bis).

My RR is configured with different peer-group towards its clients (PE).

I'd like to konw what is the RR's default behaviour when it receives an updata message type 'withdrawal' by its client.

I've observed that:

- When a PE send its update (withdrawal), it receive back by RR all its bgp table...with a lot NLRI that my PE doesn't need..Is it a normal behaviour?

- When a PE send its update (withdrawal), it receives back by RR its own update..I think that this is a normal behaviuor since he is configured within a peer-group on RR. Is it correct?

Many thanks in advance for your support.



Re: MP-BGP Router Reflectot (RR) Default Behaviour

The second one is the normal behaviour. PE should normally withdraw the routes which it advertised.

New Member

Re: MP-BGP Router Reflectot (RR) Default Behaviour

Hello I'm trying to configure a lab with 4 7600-sup32-3b 12.2(2)-33.SRC. 2 of them as P routers and the rest as PE. P's are Route Reflector and PE are route reflector clients. If I create the same VRF in both PE routes are note not advertised between PEs.(show ip route vrf lab). Please could you give me a configuration example or a link where I could take a look.

Thanks in advance. Santiago.