Virtual-Cable-Test - H3C S5120-SI Series Command Reference Manual

virtual-cable-test

Syntax
virtual-cable-test
View
Ethernet port view
Default Level
2: System level
Parameters
None
Description
Use the virtual-cable-test command to test the cable connected to the Ethernet port once and to
display the testing result. The tested items include:
Note that:
When the cable is functioning properly, the cable length in the test result represents the total cable
length;
When the cable is not functioning properly, the cable length in the test result represents the length
from the current interface to the failed position.
The optical interface of a SFP port does not support this command.
A link in the up state goes down and then up automatically if you execute this command on one of
the Ethernet ports forming the link.
The test result is for your information only. The maximum error in the tested cable length is 5 m. A
hyphen "-" indicates that the corresponding test item is not supported.
Examples
# Enable the virtual cable test for the interface GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] virtual-cable-test
Cable status: normal, 1 metres
Pair Impedance mismatch: -
Pair skew: - ns
Pair swap: -
Pair polarity: -
Insertion loss: - db
Return loss: - db
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