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JunosE 11.3.x IP, IPv6, and IGP Configuration Guide
graceful-restart notify-time
graceful-restart restart-time
290
Use to specify conditions under which the OSPFv2 or OSPFv3 router abandons its role
as an OSPF graceful restart helper router.
Use the any keyword to abandon the helper role when any LSA changes during the
restart. Use the non-externals keyword to abandon the helper role only when any
nonexternal LSA changes during the restart.
Example
host1(config-router)#graceful-restart helper-abort-topology-change any
Use the no version to return the router to its default behavior of helping a restarting
OSPF router during topology changes.
See graceful-restart helper-abort-topology-change
Use to specify the time (in the range 1–3600 seconds) expected for the OSPFv2 or
OSPFv3 router to remove grace LSAs over all interfaces.
The restarting router sends the sum of the restart duration and notify duration as the
grace period to the helping neighbors in the grace LSA. Receiving a maximum-aged
grace LSA is an indication to the helper that the restart has been successfully completed
on the restarting router.
If the grace period on the helper router expires before the receipt of max-aged grace
LSAs, the helper router stops the restart process and does not respond to the restarting
router. The helper router then originates its own LSAs with the real current state of the
adjacency with the restarting router reflected in them.
Example
host1(config-router)#graceful-restart notify-time 500
Use the no version to return the notify duration to its default value, 15 seconds.
See graceful-restart notify-time
Use to specify the time (in the range 1–3600 seconds) expected for the OSPFv2 or
OSPFv3 router to reacquire OSPF neighbors that were fully operational prior to the
restart.
When this timer expires, the restarting router exits the restart procedure, originates any
LSAs that were suppressed during the restart, removes any self-originated LSAs that
it received from helping neighbors, runs SPF, and updates any routes in the routing
table.
Example
host1(config-router)#graceful-restart restart-time 350
Use the no version to return the restart duration to its default value, 180 seconds.
See graceful-restart restart-time
Copyright © 2010, Juniper Networks, Inc.
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