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R211x-HP Flexfabric 11900 TRILL Command Reference

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Defaults
The maximum SPF calculation interval is 10 seconds, the minimum SPF calculation interval is 10
milliseconds, and the SPF calculation incremental interval is 20 milliseconds.
Views
TRILL view
Predefined user roles
network-admin
mdc-admin
Parameters
maximum-interval: Specifies the maximum SPF calculation interval in the range of 1 to 120 seconds.
minimum-interval: Specifies the minimum SPF calculation interval in the range of 10 to 60000
milliseconds. The value must be a multiple of 10 and less than maximum-interval.
incremental-interval: Specifies the SPF calculation incremental interval in the range of 10 to 60000
milliseconds. The value must be a multiple of 10 and less than maximum-interval.
Usage guidelines
An RB uses the SPF algorithm to calculate a shortest path tree with itself as the root according to the local
LSDB, and determines the next hop according to the shortest path tree. By adjusting the SPF calculation
interval, you can prevent the bandwidth resources and device resources from being over-consumed by
frequent network changes.
When the network changes are not frequent, the SPF calculation interval for continuous calculations is
reduced to minimum-interval. When the network changes are frequent, the SPF calculation interval is
added by incremental-interval × 2
n-2
(where n is the times of continuous SPF calculations triggered) each
time, but the SPF calculation interval cannot exceed maximum-interval.
Examples
# Set the maximum SPF calculation interval to 15 seconds, the minimum SPF calculation interval to 100
milliseconds, and the incremental interval to 200 milliseconds for TRILL.
<Sysname> system-view
[Sysname] trill
[Sysname-trill] timer spf 15 100 200
tree-root priority
Use tree-root priority to set a priority for the RB to be a TRILL distribution tree root.
Use undo tree-root priority to restore the default.
Syntax
tree-root priority priority
undo tree-root priority
Default
The priority for an RB to be a TRILL distribution tree root is 32768.
Views
TRILL view