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