PurposeCommand or Action
(Optional) Sets the router to log IS-IS adjacency state changes.
Enter all to include all changes generated by events that are
log-adjacency-changes [all]
Example:
Device(config-router)#
log-adjacency-changes all
Step 14
not related to the Intermediate System-to-Intermediate System
Hellos, including End System-to-Intermediate System PDUs
and link state packets (LSPs).
(Optional) Specifies the maximum LSP packet size in bytes.
The range is 128 to 4352; the default is 1497 bytes.
lsp-mtu size
Example:
Device(config-router)# lsp mtu
1560
Step 15
If any link in the network has a reduced MTU size,
you must change the LSP MTU size on all routers in
the network.
Note
(Optional) Causes an IS-IS Level 1-2 border router to stop
advertising the Level 1 area prefix into the Level 2 backbone
partition avoidance
Example:
Device(config-router)#
partition avoidance
Step 16
when full connectivity is lost among the border router, all
adjacent level 1 routers, and end hosts.
Returns to privileged EXEC mode.end
Example:
Device(config)# end
Step 17
(Optional) Saves your entries in the configuration file.copy running-config
startup-config
Step 18
Example:
Device# copy running-config
startup-config
Configuring IS-IS Interface Parameters
Procedure
PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Device# configure terminal
Step 1
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
155
Configuring IP Unicast Routing
Configuring IS-IS Interface Parameters
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