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Using the Console Interface

309985-C Rev 00

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Participation

Allows you to configure any (or all) of the switch ports for spanning tree participation.

When an individual port is a trunk member (see Trunk field), changing this setting for one

of the trunk members changes the setting for all members of that trunk. You should

consider how this can change your network topology before you change this setting (see

“

MultiLink Trunking Configuration Rules” on page 1-75).

The Fast Learning parameter is the same as Normal Learning, except that the state

transition timer is shortened to two seconds.

Default Normal Learning

Range Normal Learning, Fast Learning, Disabled

Priority

This read-only field is a bridge spanning tree parameter that prioritizes the port’s lowest

path cost to the root. When one or more ports have the same path cost, the STA selects

the path with the highest priority (lowest numerical value). See also Path Cost.

Default 128

Range 0 to 255

Path Cost

This read-only field is a bridge spanning tree parameter that determines the lowest path

cost to the root.

Default 10 or 100

Path Cost = 1000/LAN speed (in Mb/s)

The higher the LAN speed, the lower the path cost.

See also Priority.

Range 1 to 65535

State

This read-only field indicates the current port state within the spanning tree network.

Each port can transition to various states, as determined by the Participation field setting.

For example, when the Participation field is set to Disabled, the port does not participate

in the STA and transitions to the Forwarding state (the default). When the Participation

field is set to Enabled, the port transitions from the Disabled state through the Blocking,

Listening, and Learning states before entering the Forwarding state.

Default Topology dependent

Range Disabled, Blocking, Listening, Learning, Forwarding

Table 3-38. Spanning Tree Port Configuration Screen Fields

(continued)

Field Description

1 2 ... 244 245 246 247 248 249 250 251 252 253 254 ... 329 330

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Nortel Networks 10BASE-T Bedienungsanleitung Seite 249