224 
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 gigabitEthernet / interface range 
gigabitEthernet / interface port-channel / interface range port-channel) 
Privilege Requirement 
Only  Admin, Operator and Power User level users have access to these 
commands. 
Example 
Enable the TC Protect of Spanning Tree for port 2: 
T1600G-52TS(config)# interface gigabitEthernet 1/0/2 
T1600G-52TS(config-if)# spanning-tree guard tc 
26.22   spanning-tree mcheck 
Description 
The spanning-tree mcheck command is used to enable mcheck. 
Syntax 
spanning-tree mcheck 
Command Mode 
Interface Configuration Mode (interface gigabitEthernet / interface range 
gigabitEthernet / interface port-channel / interface range port-channel) 
Privilege Requirement 
Only Admin, Operator and Power User level users have access to these 
commands. 
Example 
Enable mcheck for port 2: 
T1600G-52TS(config)# interface gigabitEthernet 1/0/2 
T1600G-52TS(config-if)# spanning-tree mcheck