SMC Networks 1000BASE-X Manual De Usuario

2-40

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.

Reconfig Count

The number of times the Spanning Tree has been 

reconfigured.

Topology Up Time

The time since the Spanning Tree was last reconfigured.