A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops. Lights on, lights off. That’s great for a small room with one entrance.

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I've got a 3COM 3C16986A switch as a primary switch, and would like to connect it to a 3C16980A. I've tried connecting from the 3C16986A's single gigabit port or any of the standard ports with a CAT5e ...