NSR for controller-initiated RSVP LSPs

Junos OS support NSR for controller-initiated RSVP-based point-to-point (P2P) and point-to-multipoint (P2MP) label-switched paths (LSPs). The primary Routing Engine synchronizes all RSVP LSPs initiated by Path Computation Elements (PCEs), including multicast flow specifications for any PCE-initiated P2MP LSPs, with the backup Routing Engine. This ensures zero traffic loss for the traffic carried over PCE-initiated RSVP LSPs during Routing Engine switchovers. This feature is enabled when NSR is configured.