TP-Link TL-SL5428E User Guide - Page 167

TL-SL5428E 24-port 10/100Mbps + 4-port Gigabit L2 Managed Switch CLI Guide Parameter loop -- Enable/ Disable Loop Protect. By default, it is disabled. Loop Protect is to prevent the loops in the network brought by recalculating STP because of link failures and network congestions. root -- Enable/ Disable Root Protect. By default, it is disabled. Root Protect is to prevent wrong network topology change caused by the role change of the current legal root bridge. TC -- Enable/ Disable TC Protect. By default, it is disabled. defend -- Enable/ Disable BPDU Protect. By default, it is disabled. BPDU Protect is to prevent the edge port from being attacked by maliciously created BPDUs. hold -- Enable/ Disable BPDU Filter. By default, it is disabled. BPDU Filter is to prevent BPDUs flood in the STP network. Command Mode Interface Configuration Mode（interface ethernet / interface range ethernet） Example Enable Loop Protect, Root Protect, TC Protect, BPDU Protect, and BPDU Filter for port 2: TP-LINK(config)# interface Ethernet 2 TP-LINK(config-if)# spanning-tree security loop enable root enable TC enable defend enable hold enable spanning-tree mcheck Description The spanning-tree mcheck command is used to enable MCheck. Syntax spanning-tree mcheck Command Mode Interface Configuration Mode（interface ethernet / interface range ethernet） Example Enable MCheck for port 2: TP-LINK(config)# interface Ethernet 2 TP-LINK(config-if)# spanning-tree mcheck 155