TP-Link T1600G-18TS T1600G-18TSUN V2 CLI Reference Guide Guide - Page 99
loopback-detection interface, loopback-detection config process-mode
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10.4 loopback-detection (interface) Description The loopback-detection command is used to enable the loopback detection function of the specified port. To disable it, please use no loopback-detection command. Syntax loopback-detection no loopback-detection 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 loopback detection function of ports 1-3: Switch(config)# interface range gigabitEthernet 1/0/1-3 Switch(Config-if-range)# loopback-detection 10.5 loopback-detection config process-mode Description The loopback-detection config process-mode command is used to configure the process-mode for the ports by which the switch copes with the detected loops. You also need to configure the recovery mode to remove the block status of the port or VLAN when the process-mode is Port Based or VLAN Based. Syntax loopback-detection config process-mode { alert | port-based | vlan-based } recovery-mode { auto | manual } Parameter alert -- When a loop is detected, the switch will send a trap message and generate an entry on the log file. It is the default setting. port-based -- When a loop is detected, the switch will send a trap message and generate an entry on the log file. In addition, the switch will block the port 78
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