RSVP is automatically enabled when MPLS is enabled on the device. The user can optionally configure the following RSVP parameters globally at the config-router-mpls level:
The user can also optionally configure interface-specific RSVP behaviors (RSVP authentication, RSVP reliable messaging, and RSVP refresh reduction) at the interface level.
Note
The effect of the refresh-interval and refresh-multiple commands can be overridden by RSVP refresh reduction behaviors.