Loopback-Detection Config - TP-Link JetStream T3700G-52TQ Cli Reference Manual

T3700G-52TQ JetStream 52-Port Gigabit Stackable L3 Managed Switch CLI Guide
Syntax
loopback-detection
no loopback-detection
Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet /
interface ten-gigabitEthernet / interface range ten-gigabitEthernet / interface
port-channel)
Example
Enable the loopback detection function of ports 1-3:
T3700G-52TQ(config)# interface range gigabitEthernet 1/0/1-3
T3700G-52TQ(config-if-range)# loopback-detection

28.5 loopback-detection config

Description
The loopback-detection config command is used to configure the
process-mode and recovery-mode for the ports or LAGs by which the switch
copes with the detected loops.
Syntax
loopback-detection
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 /
config process-mode
219
{ alert | port-based }