Configuring the Switch

Displaying the Spanning Tree Bridge State

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

 

 

Alcatel OmniStack 8008

 

 

 

< Spanning Tree Bridge State >

 

 

Bridge Priority

: 32768

 

 

Hello Time (in seconds)

: 2

 

 

Max Age (in seconds)

: 20

 

 

Forward Delay (in seconds) : 5

 

 

Hold Time (in seconds)

: 1

 

 

Designated Root

: 128.0000E800E800

 

 

Root Cost

: 4

 

 

Root Port

: 8

 

 

Configuration Changes

: 152

 

 

Topology Up Time

: 112844 (0 day 0 hr 18 min 48 sec)

 

 

 

 

<OK>

 

 

 

 

<Enter> to select.

 

 

 

 

 

 

 

 

 

 

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.

 

 

Configuration Changes

The number of times the spanning tree has been reconfigured.

Topology Up Time

The time since the spanning tree was last reconfigured.

 

 

 

 

 

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Alcatel Carrier Internetworking Solutions 8008 manual Displaying the Spanning Tree Bridge State, Parameter Description

8008 specifications

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