Gigabit Ethernet Switch Management Guide

C ONSOLE I NTERFACE
2-40
Parameter Description
Priority Device priority is used in selecting the root device, root
port, and designated port. The device with the highest
priority becomes the STA root device. However, if all
devices have the same priority, the device with the
lowest MAC address will then become the root device.
Hello Time The time interval (in seconds) at which the root device
transmits a configuration message.
Max Age The maximum time (in seconds) a device can wait
without receiving a configuration message before
attempting to reconfigure.
Forward
Delay
The maximum time (in seconds) the root device will
wait before changing states (i.e., listening to learning to
forwarding).
Hold Time The minimum interval between the transmission of
consecutive Configuration BPDUs.
Designated
Root
The priority and MAC address of the device in the
spanning tree that this switch has accepted as the root
device.
Root Cost The path cost from the root port on this switch to the
root device.
Root Port The number of the port on this switch that is closest to
the root. This switch communicates with the root device
through this port. If there is no root port, then this
switch has been accepted as the root device of the
spanning tree network.
Configuratio
n Changes
The number of times the spanning tree has been
reconfigured.
Topology
Up Time
The time since the spanning tree was last reconfigured.