Command Line Reference Guide
lsp-refresh-interval
Set the link state PDU (LSP) refresh interval. LSPs must be refreshed before they expire. When the LSPs are not
refreshed after a refresh interval, they are kept in a database until their max-lsp-lifetime reaches zero and then
LSPs is purged.
S5000
Syntax
lsp-refresh-interval seconds
To restore the default refresh interval, use the no lsp-refresh-interval command.
Parameters
seconds
The LSP refresh interval, in seconds. This value has to be less than
the seconds value specified with the max-lsp-lifetime
command. The range is 1 to 65535 seconds. The default is 900.
Defaults 900 seconds
Command Modes ROUTER ISIS
Command History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
The refresh interval determines the rate at which route topology information is transmitted
preventing the information from becoming obsolete.
The refresh interval must be less than the LSP lifetime specified with the max-lsp-
lifetime command. A low value reduces the amount of time that undetected link state
database corruption can persist at the cost of increased link utilization. A higher value reduces
the link utilization caused by the flooding of refreshed packets.
Related
Commands
max-lsp-lifetime – sets the maximum interval that LSPs persist without being refreshed.
max-area-addresses
Configure manual area addresses.
S5000
Syntax
max-area-addresses number
To return to the default values, use the no max-area-addresses command.
Parameters
number
Set the maximum number of manual area addresses. The range is 3 to
6. The default is 3.
Defaults 3 addresses
Command Modes ROUTER ISIS
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