The spf-priority commands sets the priority of SPF calculation.
The undo spf-priority command restores the default priority of SPF calculation.
By default, the priority of SPF calculation in a base topology is 64.
| Parameter | Description | Value |
|---|---|---|
| priority-value | Specifies the priority of SPF calculation. A larger value indicates a higher priority. | The value is an integer that ranges from 1 to 127. |
When multiple IS-IS topology instances are deployed on a network, the spf-priority command can be used to set a priority for the SPF calculation in each IS-IS topology instance.
If a higher priority is set for a topology, routes of the topology instance are converged first, ensuring that important services are running properly.