TP-Link T2700G-28TQ T2700G-28TQ V1 CLI Reference Guide Reference Guide - Page 220
loopback-detection config
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T2700G-28TQ JetStream 28-Port Gigabit Stackable L2+ Managed Switch CLI Guide Command Mode Interface Configuration Mode (interface fastEthernet / interface range fastEthernet / interface gigabitEthernet / interface range gigabitEthernet/ interface ten-gigabitEthernet / interface range ten-gigabitEthernet) Example Enable the loopback detection function of ports 1-3: T2700G-28TQ(config)# interface range gigabitEthernet 1/0/1-3 T2700G-28TQ(config-if-range)# loopback-detection loopback-detection config Description The loopback-detection config command is used to configure the process-mode and recovery-mode for the ports by which the switch copes with the detected loops. Syntax loopback-detection config [ process-mode { alert | port-based }] [ recovery-mode { auto | manual }] Parameter alert | port-based -- The mode how the switch processes the detected loops. Alert: When a loop is detected, display an alert. Port based: When a loop is detected, display an alert and block the port. auto | manual -- The mode how the blocked port recovers to normal status. Auto: Block status can be automatically removed after recovery time. Manual: Block status can only be removed manually. Command Mode Interface Configuration Mode (interface fastEthernet / interface range fastEthernet / interface gigabitEthernet / interface range gigabitEthernet/ interface ten-gigabitEthernet / interface range ten-gigabitEthernet) Example Configure the loopback detection process-mode as port-based and recovery-mode as manual for port 2: T3200G-28TQ(config)# interface gigabitEthernet 1/0/2 200