Loopback-Detection Config - TP-Link T3700G-28TQ Cli Reference Manual

T3700G-28TQ JetStream 28-Port Gigabit Stackable L3 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:
T3700G-28TQ(config)# interface range gigabitEthernet 1/0/1-3
T3700G-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
recovery-mode as manual for port 2:
T3200G-28TQ(config)# interface gigabitEthernet 1/0/2
the loopback detection
200
process-mode as port-based and