I am facing a very interesting scenario on my routers.
I have Routers R1 and R2 connected as mentioned below :
R1 -> MPLS SP1 - E-BGP Peering
R2 -> MPLS SP2 - E-BGP Peering
R1 -> R2 - Back to Back Connection for IBGP
On R1 :
I am learning a Route 10.0.0.0/11 from MPLS SP1. This route is tagged with a local prefence value of 200 and passed on to R2.
On R2 :
I am learning 10.0.0.0/11 from MPLS SP2 (This route is prepended and advertised from a different location). Interestingly this route is not advertised to my IBGP peer.
I am attaching a PPT and the configs for better understanding. Any idea on this guys?