Bridge priority

This value sets the priority of the bridge in the LAN. This can influence which bridge should preferably be made root bridge by the spanning tree protocol. This is a 16-bit value (0 .. 65535), where higher values mean lower priority. The default value should only be changed if a certain bridge is to be preferred. The selection process still works even if all the values are the same because, if the priorities are identical, the bridge's MAC address is used to make the decision. Even though an entire 16-bit parameter is available for configuring a parameter, special care should be taken where newer versions of the rapid or multiple spanning tree protocol are involved. The priority value should only be changed in increments of 4096, because the lower 12 bits are used for other purposes. This could mean that these values may be ignored by future firmware releases.