Allied Telesis AT-S39 - Manual (Page 271)

AT-S39 User’s Guide
271
Port Priority
This parameter is used as a tie breaker when two or more ports are
determined to have equal costs to the root bridge. The default
value for priority is 128. The range is 0-255.
Bridge Hello Time
The time interval between generating and sending configuration
messages by the bridge. The default is 2 seconds. This value
cannot be changed from this menu. To change this value, refer to
earlier in this procedure.
Port State Forwarding
This field indicates whether the port is enabled or disabled.
Root Bridge
The MAC address of the bridge functioning as the root bridge in
the spanning tree domain. This value is for display purposes only
and cannot be changed.
6. Once you have configured the parameters, click Apply.
Note
A change to the port priority parameter takes effect immediately. A
change to the port cost value requires youto reset the switch. A new
port cost value is not implemented until the unit is reset.