Routing Commands
306
ProSafe Managed Switch
nsf
Use this command to enable the OSPF graceful restart functionality on an interface. To
disable graceful restart, use the no form of the command.
no nsf
Use this command to disable graceful restart for all restarts.
nsf restart-interval
Use this command to configure the number of seconds that the restarting router asks its
neighbors to wait before exiting helper mode. This is called the “grace period.” The restarting
router includes the grace period in its grace LSAs. For planned restarts (using the initiate
failover command), the grace LSAs are sent prior to restarting the management unit,
whereas for unplanned restarts, they are sent after reboot begins. The grace period must be
set long enough to allow the restarting router to reestablish all of its adjacencies and
complete a full database exchange with each of those neighbors.
Default Disabled
Format nsf [ietf] [planned-only]
Modes OSPF Router Configuration
Parameter Description
ietf This keyword is accepted but not required.
planned-only This optional keyword indicates that OSPF should perform only a graceful restart when
the restart is planned (that is, when the restart is a result of the initiate failover
command).
Format no nsf
Modes OSPF Router Configuration
Default 120 seconds
Format nsf [ietf] restart-interval <1-1800>
Modes OSPF Router Configuration
Parameter Description
ietf This keyword is accepted but not required.
seconds The number of seconds that the restarting router asks its neighbors to wait before
exiting helper mode. The range is from 1 to 1800 seconds.
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