TP-Link T1500-28TC TL-SL2428 T1500-28TCUN V1 Configuration Guide - Page 210
Using the CLI, Configuring the STP Security, Follow these steps to con the Root protect feature
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Configuring Spanning Tree STP Security Configurations Configure the Port Protect features for the selected ports, and click Apply. UNIT Select the desired unit or LAGs for configuration. Loop Protect Enable or disable the Loop Protect function. It is recommended to enable this function on root ports and alternate ports. Loop Protect function is used to prevent loops caused by link congestions or link failures. With Loop Protect function enabled, the port will temporarily transit to blocking state when it does not receive BPDUs. After the link restores to normal, the port will transit to its normal state, so loops can be prevented. Root Protect Enable or disable the Root Protect function. It is recommended to enable this function on the designated ports of the root bridge. Root Protect function is used to ensure that the desired root bridge will not lose its position. With root protect function enabled, the port will temporarily transit to blocking state when it receives higher-priority BDPUs. After two times of forward delay, if the port does not receive any higher-priority BDPUs, it will transit to its normal state. TC Protect Enable or disable the TC Protect function. It is It is recommended to enable this function on the ports of non-root switches. TC Protect function is used to prevent the switch from frequently removing MAC address entries. With TC protect function enabled, the switch will drop TCBPDUs. BPDU Protect Enable or disable the BPDU Protect function. It is It is recommended to enable this function on edge ports. BPDU Protect function is used to prevent the edge port from receiving BPUDs. With BPDU protect function enabled, the edge port will be shutdown when it receives BPDUs, and reports these cases to the administrator. Only the administrator can restore it. BPDU Filter Enable or disable the BPDU Filter function. It is It is recommended to enable this function on edge ports. BPDU filter function is to prevent BPDU flooding in the network. With BPDU filter function enabled, the port does not receive or forward BPDUs, but it sends out its own BPDUs, preventing the switch from being attacked by BPDUs. 4.2 Using the CLI 4.2.1 Configuring the STP Security Follow these steps to configure the Root protect feature, BPDU protect feature and BPDU filter feature for ports: Step 1 configure Enter global configuration mode. Configuration Guide 189