What is done to readvertise routes learned bia BGP.
For instance, I have 2 separate networks 10.1.1.0 and 10.2.2.0.
In the topology
CE Router 10.1.1.0 --- PE RouterA --- Pe RouterB --- CE Router 10.2.2.0
If CE Router 10.1.1.0 advertises its routes to PE Router A and CE Router 10.2.2.0 advertises its routes to PE Router B, how to the 2 PE routers send those routes to each other?
They are currently running BGP between the 2 PE routers. You can see in the sh ip bgp neighbor of each side that the routes are seen as iBGP but neither side can ping.
see previous thread:
I think this may simplify my last thread a little.