A fiber network tap is a small device that makes a copy of network traffic on a fiber cable without changing or slowing the data. It lets you watch and record data for security or troubleshooting. A network switch is a device that connects computers and sends data to the right place on a network. A SPAN port is a feature of a switch that also copies network traffic for monitoring, but it uses the switch’s power to do so. The main difference is that a fiber tap works outside the network and does not affect how data moves, while a switch and SPAN port are part of the network and can be influenced by heavy traffic or software settings.
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