Configuring the port priority
The priority of a port is a factor that determines whether the port can be elected as the root port of a device. If all other conditions are the same, the port with the highest priority is elected as the root port.
On a spanning tree device, a port can have different priorities and play different roles in different spanning trees. As a result, data of different VLANs can be propagated along different physical paths, implementing per-VLAN load balancing. You can set port priority values based on the actual networking requirements.
When the priority of a port changes, the system recalculates the port role and initiates a state transition.
To configure the priority of a port:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter Layer 2 Ethernet interface or Layer 2 aggregate interface view. | interface interface-type interface-number | N/A |
3. Configure the port priority. |
| The default setting is 128 for all ports. |