Huawei Quidway S8500 Series - Spf-Delay-Interval; Spf-Slice-Size

Command Manual – Routing Protocol
Quidway S8500 Series Routing Switches Chapter 4 Integrated IS-IS Configuration Commands
Huawei Technologies Proprietary
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4.1.40 spf-delay-interval
Syntax
spf-delay-interval number
undo spf-delay-interval
View
IS-IS view
Parameter
number: Specifies number of routes to process before releasing CPU. It is in unit of
piece with the range from 1000 to 50000. By default, the value is 2500 pieces.
Description
Use the spf-delay-interval command to configure the number of routes to process
before releasing CPU in the SPF calculation.
Use the undo spf-delay-interval command to restore the default setting.
When there are a large number of routes in the routing table, this command can be
used to set that CPU resources are released automatically after a certain number of
routes are processed. The unprocessed routes will be processed in one second. In this
way, SPF calculation will not occupy the system resources for a long time, which has
impact on the responding speed of the console.
The value of the number argument can be adjusted according to the capacity of the
routing table. If the spf-slice-size command is also configured, the SPF calculation will
be paused when any setting item is met.
By default, CPU is released once when every 2500 pieces of routes are processed.
Related command: spf-slice-size.
Example
# Set IS-IS to release CPU once after processing every 3000 pieces of routes.
[Quidway-isis] spf-delay-interval 3000
4.1.41 spf-slice-size
Syntax
spf-slice-size seconds
undo spf-slice-size
View
IS-IS view