Spanning-tree, Spanning-tree 4-269 – LevelOne FGL-2870 User Manual

Page 635

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Spanning Tree Commands

4-269

4

spanning-tree

This command enables the Spanning Tree Algorithm globally for the switch. Use the
no form to disable it.

Syntax

[no] spanning-tree

Default Setting

Spanning tree is enabled.

Command Mode

Global Configuration

Command Usage

The Spanning Tree Algorithm (STA) can be used to detect and disable
network loops, and to provide backup links between switches, bridges or
routers. This allows the switch to interact with other bridging devices (that is,
an STA-compliant switch, bridge or router) in your network to ensure that only
one route exists between any two stations on the network, and provide backup
links which automatically take over when a primary link goes down.

Example
This example shows how to enable the Spanning Tree Algorithm for the switch:

spanning-tree

loopback-detection

release-mode

Configures loopback release mode for a port

IC

4-287

spanning-tree

loopback-detection trap

Enables BPDU loopback SNMP trap notification for a port IC

4-288

spanning-tree mst cost

Configures the path cost of an instance in the MST

IC

4-288

spanning-tree mst

port-priority

Configures the priority of an instance in the MST

IC

4-289

spanning-tree

protocol-migration

Re-checks the appropriate BPDU format

PE

4-290

show spanning-tree

Shows spanning tree configuration for the common

spanning tree (i.e., overall bridge), a selected interface, or

an instance within the multiple spanning tree

PE

4-291

show spanning-tree mst

configuration

Shows the multiple spanning tree configuration

PE

4-293

Console(config)#spanning-tree
Console(config)#

Table 4-66 Spanning Tree Commands

(Continued)

Command

Function

Mode

Page

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