TP-Link T1500G-10PSTL-SG2210P T1500G-10PSUN V1 CLI Reference Guide Guide - Page 221
spanning-tree bpduguard, spanning-tree guard loop
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23.17 spanning-tree bpduguard Description The spanning-tree bpduguard command is used to enable the BPDU protect function for a port. With the BPDU protect function enabled, the port will set itself automatically as ERROR-PORT when it receives BPDU packets, and the port will disable the forwarding function for a while. To disable the BPDU protect function, please use no spanning-tree bpduguard command. Syntax spanning-tree bpduguard no spanning-tree bpduguard 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 BPDU protect function for port 1/0/2: T1500G-10MPS(config)# interface gigabitEthernet 1/0/2 T1500G-10MPS(config-if)# spanning-tree bpduguard 23.18 spanning-tree guard loop Description The spanning-tree guard loop command is used to enable the Loop Protect function for a port. Loop Protect is to prevent the loops in the network brought by recalculating STP because of link failures and network congestions. To disable the Loop Protect function, please use no spanning-tree guard loop command. Syntax spanning-tree guard loop no spanning-tree guard loop 208