PROBLEM :On a live system and you want to check out a single point with minimal interaption. If you can‘t tell which data point is which on a network cabinet .
SOLUTION: fastest way is to have someone stand near the switch .Unplug the patch cord while the machine is turned on .Do that 3 or 4 times and the other person checks which point goes on and off on the switch. And you know which port to work on.
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