Switch

A switch is a fundamental networking device that connects multiple devices within a local area network (LAN) and facilitates communication between them. Unlike a hub, which broadcasts data to all connected devices, a switch intelligently forwards data only to the device it is intended for, improving network efficiency and reducing congestion. Switches operate at the data link layer of the OSI model and use MAC addresses to determine the destination of data packets. Switches are essential for creating high-performance networks, supporting faster data transfer rates, and reducing network traffic. They come in various forms, such as unmanaged, managed, and smart switches, each offering different levels of control, security, and scalability. With the ability to handle large amounts of data and connect multiple devices seamlessly, switches are critical for ensuring smooth and reliable network operations in both small and enterprise-level environments.