Spanning Tree Information

The Spanning Tree Information screen displays a summary of the STA information for the overall bridge or for a specific port. To make any changes to the parameters for the Spanning Tree, use the STA Configuration and STA Port Configuration screens.

Spanning Tree

The parameters shown in the following figure and table describe the current bridge STA Information.

Figure 3-13. STA Information - Spanning Tree

 

 

Parameter

Description

Spanning Tree

Shows if the switch is enabled to participate in an STA-

State

compliant network.

Bridge ID

A unique identifier for this bridge, consisting of bridge priority

 

plus MAC address (where the address is normally taken from

 

Port 1).

Max Age

The maximum time (in seconds) a device can wait without

 

receiving a configuration message before attempting to

 

reconfigure.

Hello Time

The time interval (in seconds) at which the root device transmits

 

a configuration message.

Forward Delay

The maximum time (in seconds) the root device will wait before

 

changing states (i.e., listening to learning to forwarding).

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.

Designated Root

The priority and MAC address of the device in the spanning tree

 

that this switch has accepted as the root device.

Root Path Cost

The path cost from the root port on this switch to the root device.

Configuration

The number of times the spanning tree has been reconfigured.

Changes

 

Last Topology

The time since the spanning tree was last reconfigured.

Change

 

DNswitch 800

Configuring and Monitoring the Switch 21

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Digital Networks North America DNswitch 800 manual Spanning Tree Information