Ethernet switches are networking devices that operate at the data link layer (Layer 2) of the OSI model. They forward data packets between devices on a local area network (LAN) by learning the MAC addresses associated with each connected device. Switches use this MAC address table to intelligently forward traffic only to the intended recipient, improving network efficiency and reducing collisions compared to hubs. They are commonly used to connect computers, printers, and other network-enabled devices within homes, offices, and data centers, providing dedicated bandwidth and enhanced security.
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