TP-Link 10GE T1700G-28TQUN V1 CLI Reference Guide - Page 225

Privilege Requirement Only Admin, Operator and Power User level users have access to these commands. Example Configure the bridge priority as 4096: T1700G-28TQ(config)# spanning-tree priority 4096 26.13 spanning-tree tc-defend Description The spanning-tree tc-defend command is used to configure the TC Protect of Spanning Tree globally. To return to the default configuration, please use no spanning-tree tc-defend 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. Syntax spanning-tree tc-defend threshold threshold period period no spanning-tree tc-defend Parameter threshold -- TC Threshold, ranging from 1 to 100 packets. By default, it is 20. TC Threshold is the maximum number of the TC-BPDUs received by the switch in a TC Protect Cycle. period -- TC Protect Cycle, ranging from 1 to 10 in seconds. By default, it is 5. Command Mode Global Configuration Mode Privilege Requirement Only Admin, Operator and Power User level users have access to these commands. Example Configure TC Threshold as 30 packets and TC Protect Cycle as 10 seconds: T1700G-28TQ(config)# spanning-tree tc-defend threshold 30 period 10 209