What is a Network Switch?

A switch is a piece of network hardware that extends the functionality of a router. In networking terms a switch is a layer 2 multiport bridging device.

It also extends the functionality of a router. In networking terms, a switch is a layer 2 multiport bridging device.

Some switches have configuration options themselves called Smart Switches. Others are just plug-and-play. Additionally, some switches can provide an electrical current to power devices that they connect to. This utilizes a standard called Power over Ethernet (PoE).

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