Example
console#show ip pimsm
rp mapping
Group Address..................................
225.1.0.0
Group Mask.....................................
255.255.255.0
RP Address.....................................
1.1.1.1
origin.........................................
Static
Group Address..................................
225.2.0.0
Group Mask.....................................
255.255.255.0
RP Address.....................................
2.2.2.2
origin......................................... BSR
853
Multicast Commands