3com 2948-SFP Plus 用户指南

C

HAPTER 11: 

C

ONFIGURING  

S

PANNING

 T

REE

  Priority — Specifies the bridge priority value. When switches or  

 

bridges are running STP, each is assigned a priority. After                

 

exchanging BPDUs, the device with the lowest priority value be 

 

comes the Root Bridge. The field range is 0-61440. The default  

 

value is 32768. The port priority value is provided in increments of  

 

4096.

 

STP Version — Specifies the STP version to run on the device. The  

 

possible field values are: 

 

  STP — Specifies STP to run on the device

 

  RSTP — Specifies RSTP to run on the device. 

 

Hello Time — Specifies the device Hello Time. The Hello Time  

 

indicates the amount of time in seconds a Root Bridge waits         

 

between configuration messages. The default is 2 seconds.

  Forward Delay — Specifies the device Forward Delay Time. The  

 

 

Forward Delay Time is the amount of time in seconds a bridge  

 

 

remains in a listening and learning state before forwarding  

 

 

packets. The default is 15 seconds.

  Max Age — Specifies the device Maximum Age Time. The        

 

Maximum Age Time is the amount of time in seconds a bridge  

 

waits before sending configuration messages. The default          

 

Maximum Age Time is 20 seconds.

2   Define the fields.

3   Click Apply. STP setting are applied, and the device is updated.

The Spanning Tree Port Setup Page contains information for modifying 
Spanning Tree parameters. 

To modify Spanning Tree: 

1  Click Device > Spanning Tree > Port Setup. The Spanning Tree  
 

Port Setup Page opens.