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Chapter 6 Commands for Port Loopback
Detection Function
6.1 debug loopback-detection
Command:
debug loopback-detection
Function:
After enabling the loopback detection debug on a port, BEBUG information will be generated when sending,
receiving messages and changing states.
Parameters:
None.
Command Mode:
Admin Mode.
Default:
Disabled by default.
Usage Guide:
Display the message sending, receiving and state changes with this command.
Example:
Switch#debug loopback-detection
%Jan 01 03:29:18 2006 Send loopback detection probe packet:dev Ethernet1/10, vlan id 1
%Jan 01 03:29:18 2006 Send loopback detection probe packet:dev Ethernet1/10, vlan id 2
6.2 loopback-detection control
Command:
loopback-detection control {shutdown |block| learning}
no loopback-detection control