Spanning-tree 758, Spanning-tree – Microsens MS453490M Management Guide User Manual

Page 758

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C

HAPTER

33

| Spanning Tree Commands

– 758 –

spanning-tree

This command enables the Spanning Tree Algorithm globally for the switch.

Use the no form to disable it.

S

YNTAX

[no] spanning-tree

D

EFAULT

S

ETTING

Spanning tree is enabled.

C

OMMAND

M

ODE

Global Configuration

C

OMMAND

U

SAGE

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.

E

XAMPLE

This example shows how to enable the Spanning Tree Algorithm for the

switch:

Console(config)#spanning-tree

Console(config)#

spanning-tree port-priority

Configures the spanning tree priority of an interface

IC

spanning-tree root-guard

Prevents a designated port from passing superior

BPDUs

IC

spanning-tree spanning-

disabled

Disables spanning tree for an interface

IC

spanning-tree loopback-

detection release

Manually releases a port placed in discarding state by

loopback-detection

PE

spanning-tree protocol-

migration

Re-checks the appropriate BPDU format

PE

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

show spanning-tree mst

configuration

Shows the multiple spanning tree configuration

PE

Table 99: Spanning Tree Commands (Continued)

Command

Function

Mode

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