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.
S4810
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 9.0.2.0
Introduced on the S6000.
Version
8.3.19.0
Introduced on the S4820T.
Version
8.3.12.0
Introduced on the S4810.
Version 8.3.11.1
Introduced on the Z9000.
Version 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.
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Intermediate System to Intermediate System (IS-IS)
Summary of Contents for Networking S4810
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