Finally finished this lab, but experienced and oddity...
I saw the routes in the CE routers for the remote CE but wasn't able to ping. I even sourced my pings from a loopback that was being advertised in the CE-PE routing protocol. Weird.
Other than that, this was an interesting one, the 2 routers that join the 2 BGP ASes, were configured as eBGP peers and configured to send-label. Then the the eBGP VPNv4 relationship was farther spread apart, it was actually a peering of the PE to PE across 2 BGP ASes.
All in all, a good lab, but I'm troubled by why I can't seem to ping from CE to CE in either VRF.
On to the next one.
UPDATE------------ Issue resolved.
The problem was something so silly, I didn't have MPLS IP configured on R4, R5, and R6 in my ISIS domain. A good lesson, if your control plane looks good (ie your routing table) then the problem has to be in your forwarding plane. Thanks to Vignesh for his help.
Happy Holidays and All the Best in 2026!
5 days ago