See matching posts in thread - Can I query multicast route tab...
A drawback to this optimization is that it requires the customer rendezvous point (C-RP) to either be placed in the VRF of the PE router, or it requires a Multicast Source Discovery Protocol (MSDP) or PIM anycast-PIM connection between the C-RP and the PE router. This is because at least one PE router must know about all active sources in the VPN
See matching posts in thread - Router1: root@Router1> show configuration protoc...
See matching posts in thread - Sorry I don't have any configuration examples bu...
See matching posts in thread - I guess you tried "show multicast route...