TP-Link T3700G-28TQ User Manual page 64

Choose the menu Switching → Port → Loopback Detection to load the following page.
The following entries are displayed on this screen:
Global Config

LoopbackDetection
Status:
Detection Interval:
Automatic Recovery
Time:
Web Refresh Status:
Web Refresh
Interval:
Port Config

Select:
Figure 6-7 Loopback Detection Config
Here you can enable or disable Loopback Detection function
globally.
Set a Loopback Detection interval between 1 and 1000 seconds.
By default, it's 30 seconds.
Time after which the blocked port would automatically recover to
normal status. It can be set as integral times of detection interval.
Here you can enable or disable web automatic refresh.
Set a web refresh interval between 3 and 100 seconds. By default,
it is 6 seconds.
Select the desired port for Loopback Detection configuration. It is
multi-optional.
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