(also ethernet hub)
A network hub is a networking device that connects multiple computers or devices across the local area network (LAN) and broadcasts data to each connection. It operates at the physical layer of the OSI model, meaning it transmits data over the physical medium, such as Ethernet cables. The network hub receives data from one device and forwards it to all remaining devices on the network. However, it doesn’t have intelligence that tells it where to send information. So the network hub sends the data packets to all, regardless of whether the data is intended for them. Usually, users utilize network hubs on small networks with a limited number of devices that don’t require high-speed data transfer. Switches have largely replaced network hubs because they deliver better performance and efficiency.
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