[c-nsp] MPLS L3VPN Hub and Spoke

Saku Ytti saku at ytti.fi
Thu Mar 17 11:19:02 EDT 2016

On 17 March 2016 at 16:59, Mark Tinka <mark.tinka at seacom.mu> wrote:
> Play with RT's.
> Use an RT on each spoke that imports only the routes from the hub. That
> RT should not be used for export by any other spoke to the hub.

This approach relies on no IP lookup at hub PE, if hub PE does IP
lookup it'll bridge the spokes. I would recommend Charlies's approach
and explicitly use different VRF for ingress and egress.
On many platforms it may be hard to reason when IP lookup happens on PE.


More information about the cisco-nsp mailing list