TP-Link T1500 Series User Manual page 329

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Configuring Spanning Tree

Spanning Tree

TC Protect function is used to prevent the switch from frequently removing MAC address

entries. It is recommended to enable this function on the ports of non-root switches.

A switch removes MAC address entries upon receiving TC-BPDUs (the packets used to

announce changes in the network topology). If a user maliciously sends a large number of

TC-BPDUs to a switch in a short period, the switch will be busy with removing MAC address

entries, which may decrease the performance and stability of the network.

With TC protect function enabled, if the number of the received TC-BPDUs exceeds the

maximum number you set in the TC threshold, the switch will not remove MAC address

entries in the TC protect cycle.

Configuration Guide