Item

 

Description

 

 

 

Defines the port contribution to the root path cost. When Default Path Cost is

 

 

 

disabled, you can configure it; when Default Path Cost is enabled, you can

 

Path Cost

 

not configure it , and the possible field values are:

 

 

z 65535: Indicates Path Cost Default Values is short. This is the default

 

 

 

 

 

 

value.

 

 

 

z 200000000: Indicates Path Cost Default Value is long.

 

 

 

Defines the priority value of the port. The priority value influences the port

 

Port Priority

 

choice when a bridge has two ports connected in a loop. The priority value is

 

 

 

between 0-240. The default is 128.

 

 

 

 

 

 

 

Specifies whether a Point-to-Point link is established, or if the switch is

 

 

 

permitted to establish a Point-to-Point link. The possible field values are:

 

 

 

z No Change: Retains the current port status.

 

RSTP Link Type

 

z Auto: Enables the switch to establish automatically Point-to-Point link.

 

 

This is the default value.

 

 

 

z Point to Point: Indicates if a Point-to-Point link is currently established on

 

 

 

the port. Ports set to Full Duplex modes are considered Point-to-Point

 

 

 

port links.

 

 

 

z Shared: Enables the switch to establish a shared link.

 

 

 

 

Viewing STP

The STP Summary Page displays the current STP parameters for all ports.

Click Device > Spanning Tree > Summary. The STP Summary Page opens.

Figure 3-36STP Summary Page

The STP Summary Page contains the following fields:

Table 3-27STP Summary Page item description

Item

Description

 

Indicates if STP is enabled on the port. The possible field values are:

STP

z Enabled: Indicates that STP is enabled on the port.

 

z Disabled: Indicates that STP is disabled on the port.

 

Indicates if Fast Link is enabled on the port. If Fast Link mode is enabled for

Port Fast

a port, the port is automatically placed in the Forwarding state when the port

link is up. Fast Link optimizes the STP protocol convergence. STP

 

convergence takes 30 seconds and is not dependent on the number of

 

switches in the network.

 

3-33

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Image 57
3Com 3CBLSF26H manual Viewing STP