Example
Enable the loopback detection function of ports 1-3:
TL-SG2424(config)# interface range gigabitEthernet 1/0/1-3
TL-SG2424(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
process-mode —— 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.
recovery-mode —— 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 gigabitEthernet / interface range
gigabitEthernet)
Example
Configure the loopback detection process-mode as port-based and
recovery-mode as manual for port 2:
TL-SG2424(config)# interface gigabitEthernet 1/0/2
TL-SG2424(config-if)# loopback-detection config process-mode port-based
recovery-mode manual
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