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9.2 Port Loopback Detection Function Configuration
Task List
1． Configure the time interval of loopback detection
2． Enable the function of port loopback detection
3． Configure the control method of port loopback detection
4． Display and debug the relevant information of port loopback detection
5． Configure the loopback-detection control mode (automatic recovery enabled or not)
1．Configure the time interval of loopback detection
Command
Global Mode
loopback-detection interval-time
<loopback> <no-loopback>
no loopback-detection interval-time
2．Enable the function of port loopback detection
Command
Port Mode
loopback-detection specified-vlan
<vlan-list>
no loopback-detection specified-vlan
<vlan-list>
3．Configure the control method of port loopback detection
Command
Port Mode
loopback-detection control {shutdown
|block| learning}
no loopback-detection control
4．Display and debug the relevant information of port loopback detection
Explanation
Configure the time interval of loopback
detection.
Explanation
Enable and disable the function of port
loopback detection.
Explanation
Enable and disable the function of port
loopback detection control.
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Troubleshooting
