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Commands for Port Loopback Detection Function
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5.6 show loopback-detection
Command: show loopback-detection [interface <interface-list>]
Function: Display the state of loopback detection on all ports if no parameter is provided,
or the state and result of the specified ports according to the parameters.
Parameters: <interface-list> the list of ports to be displayed, for example: ethernet 1/1.
Command Mode: Admin and Configuration Mode.
Usage Guide: Display the state and result of loopback detection on ports with this
command.
Example: Display the state of loopback detection on port 4.
Switch(config)#show loopback-detection interface Ethernet 1/4
loopback detection config and state information in the switch!
PortName Loopback Detection Control Mode Is Controlled
Ethernet1/4 Enable Shutdown No