Description: This object determines the role of the bridge in the spanning tree. It is used to decide which bridge in the network should be the root, which bridges should be active, and which bridges should operate in a standby mode. By changing the bridge priority, one can affect the configuration of the spanning tree. Bridges with smaller priority values are preferentially active i.e. smaller values indicate higher priorities. The bridge priority forms the upper two bytes of the bridge identifier used by the Spanning Tree Protocol.