What is the meaning of the cable length value in the VCT test

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You can run the virtual-cable-test command to test whether a cable is faulty. You can locate and rectify cable faults according to the command output.
-If the cable works properly, the total length of the cable is displayed.
-If the cable is faulty, the distance between the local interface and the fault point is displayed.
The cable length displayed in the VCT test is for reference only.

Other related questions:
Why is the format of cable length tested using the MIB tool different from that of cable length tested using commands in the VCT test
You can run the virtual-cable-test command to test the cable length. system-view [HUAWEI] interface gigabitethernet 0/0/1 [HUAWEI-GigabitEthernet0/0/1] virtual-cable-test Warning: The command will stop service for a while, Continue?[Y/N]y Info: This operation may take a few seconds. Please wait for a moment......done. Pair A length: 189meter(s) Pair B length: 189meter(s) Pair C length: 189meter(s) Pair D length: 189meter(s) Pair A state: Ok Pair B state: Ok Pair C state: Ok Pair D state: Ok The lengths displayed in the command output are lengths of several wire pairs and the distance between the local interface and the fault point. The test result is for reference only and does not guarantee the accuracy for network cables produced by all manufacturers. The length tested using the MIB tool is only a value. The value is the average length of multiple wire pairs. NOTE: If the cable length is displayed as Unknown, the cable status is OK, but the cable length test result cannot be used.

What is the valid distance of the video output cable for ViewPoint 9000 series endpoints?
ViewPoint 9000 series endpoints provide the DVI and SDI ports. The valid distance of the DVI cable is 13 meters, and the valid distance of the SDI cable is 60 meters.

How to set the length of a Jumbo frame
The procedure for setting the length of a Jumbo frame is described on the right.

What is the maximum length of the MCU video wall cable?
The standard length of the MCU video wall cable is 2 meters plus 13 meters. The cable length cannot exceed 15 meters according to HDMI and DVI transmission requirements. If the cable exceeds the maximum allowable length, the signal will attenuate. The longer the cable is, the more severe the signal is attenuated.

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