Allied Telesis AT-GS950/48PS - Manual (Page 122)

Chapter 9: Loopback Protection
122
Status
The status of the Loopback Detection is given in the Loop Status column
of the table at the bottom of the Loopback Detection page. See Figure 37
on page 120. The status is one of the following states:
Normal: This status indicates that the port does not have the Tx to Rx
pairs connected.
Disabled: This status indicates that the port does not have the Tx to
Rx pairs connected. The Disabled state will be reset to Normal after
two conditions are both met:
 The loopback condition does not exist anymore.
 The specified Recovery Time has elapsed.
Note
If the Recover Time is set to 0, the port recovery is disabled until it
is manually reset. It can be reset by re-configuring the Recover
Time to its normal operating range or by disabling the Loopback
Detection feature on the switch.