3Com 3031 Command Reference Manual page 625

them, the aggregated route can be either a route found by IS-IS protocol, or an
imported route. Furthermore, the cost value of the aggregated route adopts the
smallest cost of the routes aggregated.
Example
[3Com-isis] summary 202.0.0.0 255.0.0.0
timer lsp-max-age
Syntax
timer lsp-max-age seconds
undo timer lsp-max-age
View
IS-IS view
Parameter
Description
Using the timer lsp-max-age command, you can configure the maximum lifetime
of an LSP generated by the current router. Using the undo timer lsp-max-age
command, you can restore the default value.
When a router generates the LSP of the system, it will fill in the maximum lifetime
of this LSP. When other routers receive this LSP, its lifetime will be reduced
continuously as the time goes by. If updated LSP has not been received before the
old one times out, this LSP will be deleted from the LSDB.
For the related command, see timer lsp-refresh.
Example
1500 seconds.
[3Com-isis] timer lsp-max-age 1500
timer lsp-refresh
Syntax
timer lsp-refresh seconds
undo timer lsp-refresh
View
IS-IS view
Parameter
Description
Using the timer lsp-refresh command, you can configure the refresh interval of LSP.
Using the undo timer lsp-refresh command, you can restore the default value.
Set a route summary of 202.0.0.0/8.
seconds: Specifies the maximum lifetime of LSP, measured in seconds. The
range is 1 to 65535. The default value is 1200 seconds.
Set the lifetime of an LSP generated by the current system to 25 minutes, i.e.,
seconds: Specifies the LSP refresh interval, measured in seconds. The range is 1
to 65535. The default value is 900 seconds.
Integrated IS-IS Configuration Commands 625