1, the bridge ID
Switch bridge ID will become the bridge with
Bridge priority MAC address of the bridge
2 6 bytes
Bridge priority range: 0 to 65535; Default: 32768 (0x8000)
First, determine the priority of the bridge, the lowest priority will be the bridge with the bridge;
Switches or bridges if the same bridge priority, the bridge MAC address comparison, with the lowest MAC address will become with the bridge.
2, Port ID (with port participation in elections)
Port priority port number
1 byte 1 byte
Port priority range: 0 to 255; Default: 128 (0x80)
The smaller the port priority value, the higher the priority;
If the same port priority, the lower the number, the higher the priority.