timer lsp-refresh

Use timer lsp-refresh to set the LSP refresh interval.

Use undo timer lsp-refresh to restore the default.

Syntax

timer lsp-refresh seconds

undo timer lsp-refresh

Default

The LSP refresh interval is 900 seconds.

Views

SPBM view

Predefined user roles

network-admin

Parameters

seconds: Specifies the LSP refresh interval in the range of 1 to 65534 seconds.

Usage guidelines

To prevent LSPs from age-out and synchronize LSDBs, ISIS-SPB performs periodic LSP update. The LSP refresh interval sets the interval at which ISIS-SPB regularly regenerates an LSP, regardless of whether any change has occurred to the LSP.

A short refresh interval improves network convergence time, but it also uses more bandwidth resources and system resources.

To avoid unnecessary LSP age-outs, make sure the LSP refresh interval is shorter than the LSP lifetime.

Examples

# Set the LSP refresh interval to 1200 seconds.

<Sysname> system-view
[Sysname] spbm
[Sysname-spbm] timer lsp-refresh 1200

Related commands

timer lsp-max-age