I've got an MPLS network that is experiencing routing loops every 3-4 hours. Our Service Provider says they are seeing advertisements from our routers for routes that are not in that part of the network. When we check our routers, they say the opposite. Is it possible for a router to advertise a route that is not in its network back to the router it got the advertisement from even with split-horizon enabled? We are running eigrp on our local networks and the Service Provider is redistributing into bgp.
I have this problem too.