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Configure Bridge Priority on Switches via Mist

date_range 18-Feb-25

The bridge priority value along with the device MAC address forms the bridge ID which determines the bridge to be elected as the root bridge in a Spanning Tree Protocol (STP) topology. The priority value is useful when two bridges have the same path cost to the root bridge.

To configure bridge priority on a switch:

  1. Click Switches to go to the list of switches.
  2. Click a switch to open it.
    The switch details page appears.
  3. Scroll down to the STP Bridge Priority tile in the Management section.
  4. Select a value from the Bridge Priority drop-down list.
    Note:
    • If you don't set the bridge priority (or select the value ‘none’), the default value (32,768) is configured.

    • The bridge priority can be set only in increments of 4096 (between 0 and 61,440).

  5. To save the changes, click Save on the upper right of the switch details page.
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