Справочное Руководство для TP-LINK TL-SG2008

 

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Enable the Loop Protect function for port 1/0/2: 

TL-SG2008(config)# interface gigabitEthernet 1/0/2 

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. 

spanning-tree guard root 

Interface Configuration Mode (interface gigabitEthernet / interface range 

gigabitEthernet) 

Enable the Root Protect function for port 1/0/2: 

TL-SG2008(config)# interface gigabitEthernet 1/0/2 

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.