What is a computer network switch and what is it used for?
A computer network switch is a device that connects devices in a computer network. It receives data packets from connected devices and forwards them to their intended destination. Switches work at the data link layer (layer 2) of the OSI model and use the Media Access Control (MAC) address of connected devices to forward data.
Switches are commonly used in local area networks (LANs) to connect devices such as computers, printers, and servers. They provide a dedicated connection between devices, which allows for faster and more efficient data transfer.
Compared to hubs, which broadcast data to all connected devices, switches are able to selectively send data only to the device that needs it, reducing network congestion and improving overall network performance.
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