Changing the global join-prune interval on the router
Syntax:
router pim join-prune-interval [5-65535]
Sets the interval in seconds at which periodic PIM-SM join/prune messages are to be sent on the router's PIM-SM interfaces. This setting is applied to every PIM-SM interface on the router.
(Default: 60 seconds)
NOTE:
All routers in a PIM-SM domain should have the same join-prune-interval setting.