Dell 9.7(0.0) manual Lsp-refresh-interval seconds

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-lifetimereaches zero and then LSPs is purged.

Syntax lsp-refresh-interval seconds

Parameters

Defaults

Command Modes

Command History

Usage Information

Related Commands

To restore the default refresh interval, use the no lsp-refresh-intervalcommand.

seconds	The LSP refresh interval, in seconds. This value must be 300
	seconds less than the value specified in the max-lsp-
	lifetime command. The range is from 1 to 65535 seconds.
	The default is 900.

900seconds

ROUTER ISIS

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.

VersionDescription

9.7(0.0) Introduced on the S6000-ON.

9.0.2.0Introduced on the S6000.

8.3.19.0Introduced on the S4820T.

8.3.12.0Introduced on the S4810.

8.3.11.1Introduced on the Z9000.

7.5.1.0Added support for LSP Throttling Enhancement.

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.

max-lsp-lifetime — sets the maximum interval that LSPs persist without being refreshed.

Intermediate System to Intermediate System (IS-IS) 881