Reference Guide
928 | Intermediate System to Intermediate System (IS-IS)
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If you are configuring only one area in your network, you do not need to run both Level 1 and Level 2 
routing algorithms. The IS type can be configured as Level 1.
log-adjacency-changes 
e 
Generate a log messages for adjacency state changes.
Syntax
log-adjacency-changes
To disable this function, enter no log-adjacency-changes.
Defaults
Adjacency changes are not logged.
Command Modes
ROUTER ISIS
Command
History
Usage
Information
This command enables you to monitor adjacency state changes, which is useful when you monitor 
large networks. Messages are logged in the system error message facility. 
lsp-gen-interval 
e 
Set the minimum interval between successive generations of link-state packets (LSPs).
Syntax
lsp-gen-interval [level-l | level-2] interval seconds [initial_wait_interval seconds 
[second_wait_interval seconds]]
To restore default values, use the no lsp-gen-interval [level-l | level-2] interval seconds 
[initial_wait_interval seconds [second_wait_interval seconds]] command.
Parameters
Version 8.3.19.0 Introduced on S4820T
Version 8.3.12.0 Introduced on S4810
level-l (OPTIONAL) Enter the keyword level-1 to apply the configuration to 
generation of Level-1 LSPs.
level-2  (OPTIONAL) Enter the keyword level-2 to apply the configuration to 
generation of Level-2 LSPs.
interval seconds
Enter the maximum number of seconds between LSP generations.
Range: 0 to 120 seconds
Default: 5 seconds










