Juniper EX9200 Features Manual page 42

High Availability Feature Guide for EX9200 Switches
Verification
Purpose
Action
Meaning
Related
Documentation
22
Set the network level and the hold-time in seconds for that level.
2.
set protocols isis interface interface-name level 1 hold-time 41
If the routing device functions on more than one level, set the value for the other
3.
level.
set protocols isis interface interface-name level 2 hold-time 41
If you are done configuring the routing device, commit the configuration.
4.
NOTE: Repeat the entire configuration on all routing devices in a shared
network.
Results
Verifying the IS-IS Protocol Hold Time for Graceful Restart on page 22
Verifying the IS-IS Protocol Hold Time for Graceful Restart
Verify that the IS-IS protocol hold-time is set to 41 seconds or greater to ensure that
graceful restart is enabled.
Confirm your configuration by entering the
operational mode. If the output does not display the intended configuration, repeat the
instructions in this example to correct the configuration.
A high enough IS-IS protocol hold-time value allows your system configuration to restart
and ensures that even if a Routing Engine fails, traffic continues.
Understanding Graceful Routing Engine Switchover on page 3
Configuring Graceful Routing Engine Switchover on page 17
Example: Configuring IS-IS
Example: Configuring OSPF Timers
interface
level
hold-time
command from
show isis adjacency brief
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