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