Loopback Detection - TP-Link T2500-28TC User Manual

5.1.5 Loopback Detection

With loopback detection feature enabled, the switch can detect loops using loopback detection
packets. When a loop is detected, the switch will display an alert or further block the corresponding
port according to the port configuration.
Choose the menu Switching→Port→LoopbackDetection 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

Port Select:
Figure 5-5 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's 6 seconds.
Click the Select button to quick-select the corresponding port
based on the port number you entered.
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