host1(config-if)#mpls rsvp signalling hello refresh misses 5
NOTE: Issuing the refresh interval or the refresh misses keywords only configures
the refresh values; this action has no effect on enabling or disabling hellos.
Related Topics Basic MPLS Configuration Tasks on page 268â–
â– Additional RSVP-TE Configuration Tasks on page 286
â– mpls rsvp signalling hello
Configuring RSVP-TE Graceful Restart
Configure RSVP-TE graceful restart to enable routers to maintain MPLS forwarding
state when a link or node failure occurs. Becasue forwarding state is maintained,
traffic can continue to be forwarded while RSVP-TE restarts and recovers. The RSVP-TE
graceful restart feature enables an LSR to gracefully restart, to act as a graceful restart
helper node for a neighboring router that is restarting, or both.
To configure RSVP-TE graceful restart on the current VR so that the LSR acts as both
a graceful restart restarting node and a graceful restart helper node:
1. Enable RSVP-TE graceful restart on the current virtual router.
host1(config)#mpls rsvp signalling hello graceful-restart
2. (Optional) Configure the recovery time—the time within which you want
neighboring routers to resynchronize RSVP-TE state and MPLS forwarding state
after a graceful restart.
host1(configf)#mpls rsvp signalling hello graceful-restart recovery-time 140000
3. (Optional) Configure the restart time—the time within which the sender gracefully
restarts RSVP-TE and reestablishes hello communication with RSVP-TE neighbors.
host1(configf)#mpls rsvp signalling hello graceful-restart refresh restart-time
150000
To configure RSVP-TE graceful restart on the current VR so that the LSR acts as only
a graceful restart helper node for neighbors that support RSVP-TE graceful restart:
â– Issue the mpls rsvp signalling hello graceful-restart mode help-neighbor
command:
host1(config)#mpls rsvp signalling hello graceful-restart mode help-neighbor
Related Topics â– Basic MPLS Configuration Tasks on page 268
â– Additional RSVP-TE Configuration Tasks on page 286
292 â– Configuring RSVP-TE Graceful Restart
JUNOSe 11.1.x BGP and MPLS Configuration Guide
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