Use this command to configure the switch to become the root bridge or standby root bridge by modifying the bridge priority from the default value of 32768 to a lower value calculated to ensure the bridge is the root (or standby) bridge.
The logic takes care of setting the bridge priority to a value lower (primary) or next lower (secondary) than the lowest bridge priority for the specified VLAN or a range of VLANs.
| Default | 32768 |
| Format | spanning-tree vlan vlan-list root {primary|secondary} |
| Mode | Global Config |
| Parameter | Description |
|---|---|
| vlan-list | The VLANs to which to apply this command. |
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