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How do switches work? My dad plugged an extra cable into the router, and that night the whole house was stuck in a PPT format
switches use MAC address tables to look up and forward, and packets that are unfamiliar are flooded to all ports. Two network cables connect the router and switch into a loop, with broadcast frames infinitely copied within the loop, filling the entire house with bandwidth in seconds. This article thoroughly explains the investigation process and principles behind the entire internet paralysis at my home in one go. ...
