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Configuring Graceful Restart
When BGP And LDP Are Configured
When BGP, IS-IS, and LDP are all configured on
a router on which you will perform a unified in-service software upgrade,
ensure that the IS-IS graceful restart timeout is longer than the
LDP graceful restart timeout. The IS-IS graceful restart does not
complete when the LDP graceful restart timeout is longer than the
IS-IS graceful restart timeout. Configure IS-IS graceful timeout with
the nsf t3 command. Configure LDP graceful
restart timeout with the mpls ldp graceful-restart timers max-recovery command.
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