TP-LINK 24-Port 10/100Mbps + 4-Port Gigabit L2 Managed Switch TL-SL3428 Data Sheet

Product codes

TL-SL3428

TL-SL3428/TL-SL3452

JetStream L2 Managed Switch CLI Guide

172

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

removing MAC address entries, which may decrease the performance and

stability of the network. With the Protect of Spanning Tree function enabled, you

can configure the number of TC-BPDUs in a required time, so as to avoid the

process of removing MAC addresses frequently.

Syntax

spanning-tree guard tc

no spanning-tree guard tc

Command Mode

Interface Configuration Mode (interface fastEthernet / interface range

fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

Example

Enable the TC Protect of Spanning Tree for Fast Ethernet port 2:

TL-SL3428(config)#interface fastEthernet 1/0/2

TL-SL3428(config-if)#spanning-tree guard tc

spanning-tree mcheck