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Spanning-tree portfast bpdu-guard – Allied Telesis AT-8100 Series User Manual

Page 815

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AT-8100 Switch Command Line User’s Guide

815

SPANNING-TREE PORTFAST BPDU-GUARD

Syntax

spanning-tree portfast bpdu-guard

Parameters

None

Mode

Port Interface mode

Description

Use this command to enable the BPDU guard feature so that the switch
monitors edge ports and disables them if they receive BPDU packets.

To disable an edge port that was disabled by the BPDU guard feature, use
the NO SPANNING-TREE PORTFAST BPDU-GUARD command. See
“NO SPANNING-TREE PORTFAST BPDU-GUARD” on page 836.

Confirmation Command

“SHOW SPANNING-TREE” on page 806

Example

This example enables the BPDU guard feature on port 4:

awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.4
awplus(config-if)# spanning-tree portfast bpdu-guard