Dell Force10 Z9000 Configuration Manual page 359

ROUTER-ISIS mode
graceful-restart interval minutes
The range is from 1 to 120 minutes.
The default is 5 minutes.
• Enable the graceful restart maximum wait time before a restarting peer comes up.
ROUTER-ISIS mode
graceful-restart restart-wait seconds
When implementing this command, be sure to set the t3 timer to adjacency on the restarting router.
The range is from 1 to 120 minutes.
The default is 30 seconds.
• Configure the time that the graceful restart timer T1 defines for a restarting router to use for each interface, as an interval before
regenerating Restart Request (an IIH with RR bit set in Restart TLV) after waiting for an acknowledgement.
ROUTER-ISIS mode
graceful-restart t1 {interval seconds | retry-times value}
– interval: wait time (the range is from 5 to 120. The default is 5.)
– retry-times: number of times an unacknowledged restart request is sent before the restarting router gives up the
graceful restart engagement with the neighbor. (The range is from 1 to 10 attempts. The default is 1.)
• Configure the time for the graceful restart timer T2 that a restarting router uses as the wait time for each database to
synchronize.
ROUTER-ISIS mode
graceful-restart t2 {level-1 | level-2} seconds
– level-1, level-2: identifies the database instance type to which the wait interval applies.
The range is from 5 to 120 seconds.
The default is 30 seconds.
• Configure graceful restart timer T3 to set the time used by the restarting router as an overall maximum time to wait for database
synchronization to complete.
ROUTER-ISIS mode
graceful-restart t3 {adjacency | manual seconds}
– adjacency: the restarting router receives the remaining time value from its peer and adjusts its T3 value so if user has
configured this option.
– manual: allows you to specify a fixed value that the restarting router should use.
The range is from 50 to 120 seconds.
The default is 30 seconds.
Examples of the show isis Commands
NOTE: If this timer expires before the synchronization has completed, the restarting router sends the overload bit in the
LSP. The 'overload' bit is an indication to the receiving router that database synchronization did not complete at the
restarting router.
To view all graceful restart-related configurations, use the show isis graceful-restart detail command in EXEC
Privilege mode.
Dell#show isis graceful-restart detail
Configured Timer Value
Intermediate System to Intermediate System
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