Справочник Пользователя для TP-LINK TL-SG2008

 

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If the connection status is normal, here displays the length range of
the cable. 

If the connection status is close, open or impedance, here displays the
error length of the cable.   

1.  The interval between two cable tests for one port must be more than 3 seconds. 

2.  The result is more reasonable when the cable pair is in the open status. 

3.  The test result is just for your reference. 

Loopback test function, looping the sender and the receiver of the signal, is used to test whether 
the port of the switch is available as well as to check and analyze the physical connection status of 
the port to help you locate and solve network malfunctions.   

Choose the menu Maintenance→Device Diagnostics→Loopback to load the following page. 

 

Figure 12-8 Loopback 

The following entries are displayed on this screen: 

¾

Select Internal to test whether the port is available. 

Select External to test whether the device connected to the port
of the switch is available   

¾

Select the desired port for loopback test. 

Click the Test button to start the loopback test for the port. 

This switch provides Ping test and Tracert test functions for network diagnostics.