Simplicity 3424 Specifications download pdf (Page 176)

164

Command Mode

Interface Configuration Mode (interface gigabitEthernet / interface range

gigabitEthernet)

Example

Enable the Loop Protect function for port 2:

TL-SG3424(config)# interface gigabitEthernet 1/0/2

TL-SG3424(config-if)# spanning-tree guard loop

spanning-tree guard root

Description

The spanning-tree guard root command is used to enable the Root Protect

function for a port. With the Root Protect function enabled, the root bridge will

set itself automatically as ERROR-PORT when receiving BPDU packets with

higher priority, in order to maintain the role of root ridge. To disable the Root

Protect function, please use no spanning-tree guard root command.

Syntax

spanning-tree guard root

no spanning-tree guard root

Command Mode

Interface Configuration Mode (interface gigabitEthernet / interface range

gigabitEthernet)

Example

Enable the Root Protect function for port 2:

TL-SG3424(config)# interface gigabitEthernet 1/0/2

TL-SG3424(config-if)# spanning-tree guard root

spanning-tree guard tc

Description

The spanning-tree guard tc command is used to enable the TC Protect of

Spanning Tree function for a port. To disable the TC Protect of Spanning Tree

function, please use no spanning-tree guard tc command. A switch removes

MAC address entries upon receiving TC-BPDUs. If a malicious user

continuously sends TC-BPDUs to a switch, the switch will be busy with

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Simplicity 3424 Specifications Page 176