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.

[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.

If the cable length is displayed as Unknown, the cable status is OK, but the cable length test result cannot be used.

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