Using The Cli - TP-Link T1600G-18TS Configuration Manual

Configuring Maintenance
Error
4.2

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 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 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. The value makes sense only when the cable is longer
than 30m.
Status Length
2 (+/- 10m) ---
Normal 2 (+/- 10m) ---
Normal 0 (+/- 10m) ---
Normal 2 (+/- 10m) ---
Error
Diagnosing the Device
Configuration Guide 685