Loop Detection Function - Panasonic PN28160A Operation Manual

Port LED (right)
Port LED (left)
Fig. 1-4 Port LED

1.4.3. Loop detection function

Turns on the port LED with an orange light when a loop occurs in the corresponding port.
At this time, the relevant port automatically shuts down (default setting: 60 sec.) to prevent
loop from occurring. If the loop is still not removed, the port will shut down again. Remove
the loop while the port is shut off.
The loop detection/shut-off function can be switched on/off by keeping pressing the LED display
switch button for more than 10 seconds or by setting in the configuration menu. For details
on the configuration menu, refer to 4.7.5. If switching properly takes place, LOOP HISTORY
LED turns on to complete switchover.
The loop history can be reset by powering off the Switching Hub and then on.
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