Juniper IGP - CONFIGURATION GUIDE V11.1.X, Configuration Manual

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Use to display information about the configured and operational settings on the
router for IS-IS graceful restart, which is also known as nonstop forwarding (NSF).
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Field descriptions
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Configured Timer Values—Displays the following values configured for IS-IS
graceful restart on the router, as described in “Configuring Graceful Restart”
on page 379
:
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Graceful Restart—Setting for IS-IS graceful restart on the router: Enabled
or Disabled
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T3 Timer—Method by which the restarting router obtains the T3 wait
time: Manual or Derive from adjacency
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T3 Timeout Value—Maximum time, in seconds, that the restarting router
waits before setting the overload bit to indicate that IS-IS graceful restart
has failed
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T2 Timeout Value—Maximum time for IS-IS level 1 routing and level 2
routing, in seconds, that the restarting router waits for the LSP database
to synchronize
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T1 Timeout Value—Time interval, in seconds, between IS-IS restart
requests sent by the restarting router on this interface to neighboring
routers
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T1 Retry Count—Number of times the restarting router resends
unacknowledged restart requests on this interface at the specified interval
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Adj. Wait Time—Maximum time, in seconds, that an IS-IS process on
the restarting router waits for all interfaces with IS-IS adjacencies to
come up before completing the restart process
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Operation Timer Values—Displays the following currently remaining timer
settings, in seconds, for IS-IS graceful restart during the restart process:
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T3 Timer—Remaining time before the restarting router sets the overload
bit to indicate that graceful restart has failed
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T2 Timeout Value—Remaining time for level 1 routing and level 2 routing
that the restarting router waits for the LSP database to synchronize
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Adj. Wait Time—Remaining time that the restarting router waits for all
adjacencies to come up before completing the restart process
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Restart Ack Recv Adj Count—Number of neighboring IS-IS routers for
level 1 routing and level 2 routing that have acknowledged the restart
requests sent by the router
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LAN If DIS Wait Count—Number of interfaces on which the restarting
router is waiting to receive election of the designated intermediate system
(DIS)
Monitoring IS-IS
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Chapter 6: Configuring IS-IS