RSVP-TE P2MP RPF Check Policy

In multicast forwarding, the device performs reverse path forwarding (RPF) check for a source and group entry before installing a route. This makes it possible to use point-to-multipoint LSPs to distribute multicast traffic to Protocol Independent Multicast (PIM) islands situated downstream from the egress routers. You can use this feature to disable RPF checks for a source and group pair.