Their job is to move data quickly and they use high-speed interfaces and advanced technology to connect large areas. Core switches sit at the heart of a network's structure. In smaller networks, you usually find one core switch, sometimes two for backup. Engineered to aggregate massive volumes of data from distribution switches, it provides ultra-low latency and maximum throughput to ensure uninterrupted routing and packet. A core switch in networking serves as the high-capacity backbone, italic centralizing data flow and ensuring efficient communication between different network segments. It's responsible for accurately routing communication among layers and departments of different sections.