TP-Link T2600G Series User Manual page 1114

Diagnosing the Device & Network
Fault Location
1.2 Using the CLI
On privileged EXEC mode or any other configuration mode, you can use the following
command to check the connection status of the cable that is connected to the switch.
show cable-diagnostics interface { fastEthernet port | gigabitEthernet port | ten-gigabitEthernet port }
View the cable diagnostics of the connected Ethernet Port.
port : Enter the port number in 1/0/1 format to check the result of the cable test.
show cable-diagnostics careful interface { fastEthernet port | gigabitEthernet port | ten-gigabitEthernet
port }
View the cable diagnostics of the connected Ethernet Port. When taking the careful cable test, the switch
will only test the cable for the port which is in the link-down status.
port : Enter the port number in 1/0/1 format to check the result of the cable test.
The following example shows how to check the cable diagnostics of port 1/0/2:
Switch#show cable-diagnostics interface gigabitEhternet 1/0/2
Port Pair
Gi1/0/2 Pair-A Normal
Pair-B
Pair-C
Pair-D
If the connection status is short, close or crosstalk, here displays the length from
the port to the trouble spot.
Status Length
2 (+/- 10m) ---
Normal 2 (+/- 10m) ---
Normal 0 (+/- 10m) ---
Normal 2 (+/- 10m) ---
Error
Diagnosing the Device
User Guide 1085