A "show ip pim int" command shows multicast switching as "fast". Can we have it use CEF to reduce the load on our router?
RTR2(config-if)#do sh ip pim int et0/0 detail
Ethernet0/0 is up, line protocol is up
Internet address is 192.168.0.2/24
Multicast switching: fast
Multicast packets in/out: 0/0
Multicast TTL threshold: 0
PIM: enabled
PIM version: 2, mode: sparse
PIM DR: 192.168.0.2 (this system)
PIM neighbor count: 1
PIM Hello/Query interval: 30 seconds
PIM Hello packets in/out: 15/16
PIM J/P interval: 60 seconds
PIM State-Refresh processing: enabled
PIM State-Refresh origination: disabled
PIM NBMA mode: disabled
PIM ATM multipoint signalling: disabled
PIM domain border: disabled
PIM neighbors rpf proxy capable: TRUE
PIM BFD: disabled
PIM Non-DR-Join: FALSE
Multicast Tagswitching: disabled
RTR2(config-if)#
Also, a related question. Routers perform the RPF check for multicast traffic. I'm not sure if that uses process switching, fast switching, or CEF, but would a large number of multicast packets cause a significant increase on the CPU load from all the RPF checks?