TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 CLI Reference Guide - Page 235

T2500-28TC JetStream L2 Managed Switch CLI Guide Command Mode Interface Configuration Mode (interface fastEthernet / interface range fastEthernet / interface gigabitEthernet / interface range gigabitEthernet) Example Enable the Root Protect function for Fast Ethernet port 2: T2500-28TC(config)#interface fastEthernet 1/0/2 T2500-28TC(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 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: T2500-28TC(config)#interface fastEthernet 1/0/2 T2500-28TC(config-if)#spanning-tree guard tc spanning-tree mcheck Description The spanning-tree mcheck command is used to enable MCheck. 218