H3C S7500 Series Ethernet Switches Command Manual

Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 4 Integrated IS-IS Configuration Commands
4-36
Parameters
seconds: Maximum valid time of a LSP, in the range of 1 to 65,535 in seconds. It is
1,200 seconds by default.
Description
Use the timer lsp-max-age command to set the maximum valid time of the LSPs
generated on the current router.
Use the undo timer lsp-max-age command to restore the default setting.
When the router generates system LSPs, the LSPs are generated with the maximum
valid time in them. When an LSP is received by other routers, the maximum valid time
will be smaller and smaller. If the maximum valid time decreases to 0, this LSP will be
removed from LSDB.
Related commands: timer lsp-refresh.
Examples
# Set the maximum valid time of the LSPs generated by the current system to 25
minutes, namely, 1,500 seconds.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] isis
[H3C-isis] timer lsp-max-age 1500
4.1.42 timer lsp-refresh
Syntax
timer lsp-refresh seconds
undo timer lsp-refresh
View
IS-IS view
Parameters
seconds: LSP updating period, in seconds, ranging from 1 to 65,535. It is 900 seconds
by default.
Description
Use the timer lsp-refresh command to set an LSP updating period.
Use the undo timer lsp-refresh command to resume the default configuration.
You can keep LSP in synchronization for the whole area with this mechanism.
Related commands: timer lsp-max-age.