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:
•
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 Basic MPLS Configuration Tasks on page 276•
• Additional RSVP-TE Configuration Tasks on page 293
• mpls rsvp signalling hello graceful-restart
• mpls rsvp signalling hello graceful-restart recovery-time
• mpls rsvp signalling hello graceful-restart restart-time
Configuring RSVP-TE Hellos Based on Node IDs
You can configure the exchange of node-ID–based RSVP-TE hellos (node hellos) for
interoperability with routers that cannot support RSVP-TE graceful restart with link-based
hellos. E Series routers use node hellos only to support their graceful restart capabilities.
NOTE: Graceful restart must be enabled on the VR so that the node hellos can advertise
the graceful restart capabilities. Link-based hellos are not required for graceful restart
when you have configured node hellos. However, you might still use link-based hellos
to monitor RSVP-TE links and detect link failures.
To configure the exchange of RSVP-TE node hellos on all RSVP-TE interfaces in the VR:
1. Enable RSVP-TE graceful restart.
host1:vr5(config)#mpls rsvp signalling hello graceful-restart
2. Enable node hellos.
host1:vr5(config)#mpls rsvp signalling node-hello
3. (Optional) Configure the refresh interval.
host1(config-if)#mpls rsvp signalling node-hello refresh interval 12000
4. (Optional) Configure the refresh misses.
host1(config-if)#mpls rsvp signalling node-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 RSVP-TE node hellos.
299Copyright © 2010, Juniper Networks, Inc.
Chapter 4: Configuring MPLS
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