TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 CLI Reference Guide - Page 230
spanning-tree tc-defend
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T2500-28TC JetStream L2 Managed Switch CLI Guide Syntax spanning-tree priority pri no spanning-tree priority Parameter pri -- Bridge priority, ranging from 0 to 61440. It is 32768 by default. Command Mode Global Configuration Mode Example Configure the bridge priority as 4096: T2500-28TC(config)#spanning-tree priority 4096 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 Example Configure TC Threshold as 30 packets and TC Protect Cycle as 10 seconds: T2500-28TC(config)#spanning-tree tc-defend threshold 30 period 10 213