Timer Spf - H3C MSR 20-20 Command Reference Manual

1086 C 74: IS-IS C
HAPTER
Parameters
Description
Related commands:
Examples

timer spf

Syntax
View
Parameters
Description
C
ONFIGURATION OMMANDS
seconds: Specifies the LSP refresh interval in seconds, ranging from 1 to 65534.
Use the timer lsp-refresh
Use the
undo timer lsp-refresh
The default is 900 seconds.
Using this feature, you can keep LSPs in synchronization for the whole area.
timer lsp-max-age.
n
To refresh LSPs before they are aged out, the interval set by the timer lsp-refresh
command must be smaller than that set by the timer lsp-max-age command.
# Set the LSP refresh interval to 1500 seconds.
<Sysname> system-view
[Sysname] isis
[Sysname-isis-1] timer lsp-refresh 1500
timer spf maximum-interval [ minimum-interval [ incremental-interval ] ]
undo timer spf
IS-IS view
maximum-interval: Specifies the maximum interval (in seconds) for SPF
calculations, ranging from 1 to 120.
minimum-interval: Specifies the minimum interval (in milliseconds) for SPF
calculations, ranging from 10 to 60000.
incremental-interval: Specifies the incremental interval (in milliseconds) for SPF
calculations, ranging from 10 to 60000.
Use the timer spf
Use the
undo timer spf
The default IS-IS SPF calculation interval is 10 seconds.
When the network changes are infrequent, the SPF calculation interval decreases
to the minimum interval. When the network changes become frequent, the
calculation interval is increased by inc-interval*(2
changes that triggered SPF calculations) until the maximum interval is reached.
With this feature, you can prevent the router from over consumption due to
frequent network changes.
command to set the LSP refresh interval.
to restore the default.
command to set the time intervals for ISIS routing calculation.
command to restore the default.
n-2 ), (n is the number of network