Which command can be used to check the assignment of RPs to multicast groups?

A.
show ip pim rendez-vous

B.
show ip rpf rp mapping

C.
show ip pim rp mapping

D.
show ip pim rp info

E.
show ip pim

Explanation:

Explanation show ip pim rp mapping
Use this command to check the RP assignment by multicast group range, and to verify that the
source of RP learning (static or auto-RP) and the mapping are correct. If you find an error, check
the local router configuration or auto-RP configuration.
R1# show ip pim rp mapping
PIM Group-to-RP Mappings
Group(s) 224.0.1.40/32
RP 192.168.7.2 (?), v1
Info source: local, via Auto-RP
Uptime: 2d00h, expires: never
Group(s): 224.0.0.0/4, Static
RP: 192.168.7.2 (?)

http://www.cisco.com/en/US/tech/tk828/technologies_tech_note09186a0080093f21.shtml#showip
pimrpmapping