Use the Interface > Port > Cable Test page to test the cable attached to a port. The cable test will check for any cable faults (short, open, etc.). If a fault is found, the switch reports the length to the fault. Otherwise, it reports the cable length. It can be used to determine the quality of the cable, connectors, and terminations. Problems such as opens, shorts, and cable impedance mismatch can be diagnosed with this test.
Switch port identifier.
Displays media type. (GE - Gigabit Ethernet, Other - SFP/SFP+)
Shows if the port link is up or down.
The results include common cable failures, as well as the status and approximate distance to a fault, or the approximate cable length if no fault is found.
To ensure more accurate measurement of the length to a fault, first disable power-saving mode on the link partner before running cable diagnostics.
For link-down ports, the reported distance to a fault is accurate to within +/- 2 meters. For link-up ports, the accuracy is +/- 10 meters.
Shows the last time this port was tested.