Spanning-Tree Guard Tc - TP-Link JetStream T3700G-28TQ Reference Manual

T3700G-28TQ JetStream 28-Port Gigabit Stackable L3 Managed Switch CLI Guide
set itself automatically as ERROR-PORT when receiving BPDU packets with
higher priority, in order to maintain the role of root bridge. 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 fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet/
interface ten-gigabitEthernet / interface range ten-gigabitEthernet)
Example
Enable the Root Protect function for Gigabit Ethernet port 1/0/2:
T3700G-28TQ(config)#interface gigabitEthernet 1/0/2
T3700G-28TQ(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 /
interface ten-gigabitEthernet / interface range ten-gigabitEthernet)
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