Parameter | Description |
| The rules defining port status are: |
| • A port on a network segment with no other |
| bridging device is always forwarding. |
| • If two ports of a switch are connected to the same segment |
| and there is no other STA device attached to this segment, |
| the port with the smaller ID forwards packets and the other is |
| blocked. |
| • All ports are blocked when the switch is booted, then some |
| of them change state to listening, to learning, and then to |
| forwarding. |
Designated Cost | The cost for a packet to travel from this port to the root in the |
| current spanning tree configuration. The slower the media, the |
| higher the cost. |
Designated Bridge | The priority and MAC address of the device through which this |
(ID) | port must communicate to reach the root of the spanning tree. |
Designated Port (ID) | The priority and number of the port on the designated bridging |
| device through which this switch must communicate with the root |
| of the spanning tree. |
|