Planet FGSW-2840 User Manual page 230

 Loopback Type
Loopback Port
 Loopback Port
Loopback Result
 Port: N/A
 Type: N/A
 Result: N/A
Buttons
: Click to start the cable test function.
: Click to display help web page.
Internal: select Internal to test whether the port is available.
External: select External to test whether the device connected to the port of the
Managed Switch is available.
Select the desired port for loopback test.
Display the port information.
Display the loopback test type result.
Display the loopback test result.
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User's Manual of FGSW-2840 / FGSW-4840S