NSR for RSVP point-to-multipoint ingress LSPs

Junos OS extends the nonstop active routing (NSR) support to RSVP point-to-multipoint ingress LSPs. During the switchover, the LSP comes up on the backup Routing Engine that shares and synchronizes the state information with the primary Routing Engine before and after the switchover. Nonstop active routing support for point-to-multipoint LSPs ensures that the switchover remains transparent to the network neighbors, and preserves the LSP information across the switchover. However, the Junos OS nonstop active routing support for RSVP point-to-multipoint LSPs does not include support for dynamically created point-to-multipoint LSPs, such as VPLS and next-generation MVPNs.