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Description
Use the virtual-cable-test command to enable the system to test the cable connected to a specific port
and to display the results. The system can test these attributes of the cable:
z Cable status, including normal, abnormal, abnormal-open, abnormal-short and failure
z Cable length
z If the cable is in normal state, the displayed length value is the total length of the cable.
z If the cable is in any other state, the displayed length value is the length from the port to the faulty
point.
z Pair impedance mismatch
z Pair skew
z Pair swap
z Pair polarity
z Insertion loss
z Return loss
z Near-end crosstalk
By default, the system does not test the cable connected to the Ethernet port.
Currently, only cable status and cable length can be tested. A hyphen (-) indicates that the
corresponding test item is not supported.
Examples
# Enable the system to test the cable connected to Ethernet 1/0/1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] virtual-cable-test
Cable status: normal, 0 meter(s)
Pair Impedance mismatch: -
Pair skew: - ns
Pair swap: -
Pair polarity: -
Insertion loss: - db
Return loss: - db
Near-end crosstalk: - db
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