Display the peer info from which a router will accept SA originating from the RP and also check whether the specified(S,G,RP) would be accepted from the peer.
show ip msdp sa-check source {A.B.C.D} group {A.B.C.D} rp {A.B.C.D}
show ip msdp sa-check source {A.B.C.D} group {A.B.C.D} rp {A.B.C.D} peer A.B.C.D}
show ip msdp sa-check source {A.B.C.D} group {A.B.C.D} rp {A.B.C.D} vrf WORD<1-16>
show ip msdp sa-check source {A.B.C.D} group {A.B.C.D} rp {A.B.C.D} vrfids WORD<0-512>
None
Privileged EXEC