[c-nsp] BGP add-path with MPBGP/VPNv4

Andrew K. andrew at vianet.ca
Thu Dec 5 13:09:14 EST 2013


I have a VRF configuration with MP-BGP/MPLS.

In vrf A there are two default gateways being advertised to the 
route-reflectors.

Half of the PE devices in VRF A need to send traffic out one gateway and 
the other half out the other, but the route-reflectors are only sending 
one best route to the PE.

Digging up info on add-path, it appears to have very limited support, I 
can not find support for it using the feature set navigator for anything 
other then the ASR1000, 7600, 3900 and IOS XR.

Is this feature supported by the 7200?

Can it be used in a VPNv4/VRF environment?

Should I just be doing BGP Multipath Load Sharing instead and use a 
route-map to set the weight of the default route for each PE device?

Thanks in advance for your time.
Andrew.




More information about the cisco-nsp mailing list