Summary - 3Com 8807 Command Reference Manual

492 C 26: I IS-IS C C
HAPTER NTEGRATED ONFIGURATION OMMANDS
undo spf-slice-size
View
IS-IS view
Parameter
seconds: Duration of one cycle in seconds of SPF calculation in the range from 0 to
120. When the calculation duration time reaches or exceeds the set value, the
calculation of this time ends. If seconds is set to 0, it indicates that SPF calculation
is not divided into slices and it will operate until the end. By default, the value is 0.
Description
Use the spf-slice-size command to enable IS-IS to calculate SPF routes in slices
and configure the duration of each calculation.
Use the undo spf-slice-size command to restore the default setting.
When there are a large number of routes in the routing table, this command can
be used to enable the SPF calculation in slices to prevent it from occupying the
system resources for a long time.
The user is recommended to use the command when the number of routes
reaches 150,000 or 200,000 and the value of seconds is recommended as 1. In
other cases, the default setting should be used, that is, SPF runs to the end with
no slice.
If the spf-delay-interval command is also configured, when SPF calculation is
run, the SPF calculation will be paused if any setting item is met.
Related command: spf-delay-interval.
Example
# Set the SPF duration time to one second.
[3Com-isis] spf-slice-size 1

summary

Syntax
summary ip-address mask [ level-1 | level-1-2 | level-2 ]
undo summary ip-address mask [ level-1 | level-1-2 | level-2 ]
View
IS-IS view
Parameter
ip-address: Summarized network segment address.
mask: Summarized network mask.
level-1: Summarizes the routes imported into Level-1.
level-1-2: Summarizes the routes imported into Level-1 and backbone area.