34[Sysname-port-group-manual-group1] group-member gigabitethernet 1/0/1[Sysname-port-group-manual-group1] group-member gigabitethernet 1/0/2[Sysname-port-group-manual-group1] unicast-suppression 20virtual-cable-testSyntaxvirtual-cable-testViewEthernet interface viewDefault level2: System levelParametersNoneDescriptionUse the virtual-cable-test command to test the cable connection of an Ethernet interface. The test resultsare displayed within five seconds.The cable status can be:• normal, if the cable is in good condition.• abnormal, if any fault other than a short or open circuit is detected.• abnormal (open), if an open circuit is detected.• abnormal (short), if a short circuit is detected.• failure, if the detection fails.If the cable connection is normal, the displayed cable length is the total length of the cable. If the cableconnection has a fault, it is the length from the local port to the faulty point.NOTE:• Optical interfaces do not support this command.• If the link of an Ethernet interface is up, testing its cable connection will cause the link to go down andthen up.• The test result is for reference only. If a test item is not available, a hyphen (-) is displayed.Examples# Test the cable connection of interface GigabitEthernet 1/0/1. system-view[Sysname] interface gigabitEthernet 1/0/1[Sysname-GigabitEthernet1/0/1] virtual-cable-testCable status: normal, 1 metresPair Impedance mismatch: -Pair skew: - nsPair swap: -Pair polarity: -Insertion loss: - db
