Netgear M4100-D12G (GSM5212v1h1) - 10‐port GE + 2 GE Combo L2 Managed PD Switch Guía Del Software

The cable test feature enables you to determine the cable connection status on a selected 
port. 

The cable test feature is supported only for copper cable. It is not 
supported for optical fiber cable. If the port has an active link while the 
cable test is run, the link can go down for the duration of the test.

This command returns the status of the specified port.

Normal. The cable is working correctly.

Open. The cable is disconnected or there is a faulty connector.

Short. There is an electrical short in the cable.

Cable Test Failed. The cable status could not be determined. The cable may in fact 
be working.

sFlow is the standard for monitoring high-speed switched and routed networks. sFlow 
technology is built into network equipment and gives complete visibility into network activity, 
enabling effective management and control of network resources. 

Format

cablestatus <slot/port>

Mode

Privileged EXEC

Cable Status

One of the following statuses is returned:

Cable Length

If this feature is supported by the PHY for the current link speed, the cable length is 
displayed as a range between the shortest estimated length and the longest estimated 
length. Note that if the link is down and a cable is attached to a 10/100 Ethernet adapter, 
then the cable status may display as Open or Short because some Ethernet adapters 
leave unused wire pairs unterminated or grounded. Unknown is displayed if the cable 
length could not be determined.