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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.
Z9500
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 from 1 to
65535 seconds. The default is 900.
Defaults 900 seconds
Command Modes ROUTER ISIS
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
7.5.1.0 Added support for LSP Throttling Enhancement.
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 the flooding of
refreshed packets causes.
Related
Commands
max-lsp-lifetime — sets the maximum interval that LSPs persist without being refreshed.
max-area-addresses
Configure manual area addresses.
Z9500
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 from 3 to 6. The
default is 3.
Intermediate System to Intermediate System (IS-IS) 825