Enabling PIM-SM

To enable a router interface to establish PIM neighbor relationships with other routers, enable PIM-SM.

Run system-view
The system view is displayed.
Run interface interface-type interface-number
The interface view is displayed.
Run pim sm
PIM-SM is enabled.

Running the undo pim sm command will delete PIM neighbor relationships on the interface and interrupt the multicast service running on the interface.
Run commit
The configuration is committed.