camtable wrote:Ok, first of all, if you receive a route from another PE router via MP-BGP and export it via OSPF to your CE router it will be of type-5 by default. That's standard OSPF behaviour as the route is originated in other protocol.
This is incorrect per the JUNOS MPLS and VPN student guide from JMV course. The behavior outlined in the guide is consistent with my experience as well.
"In operation, a PE router generates a summary LSA when the received route type is internal and carries a domain ID community matching the domain ID configured under the local OSPF VRF instance (a missing domain ID on both the received route and the local OSPF VRF instance is also considered to be a match)." Mismatched domain IDs, or routes with external types, result in the generation of external LSAs."