What Is a Core Switch? A core switch is the high-speed backbone of a large enterprise or campus network. Its main purpose is to move traffic quickly and reliably between aggregation blocks, buildings, data centers, firewalls, internet edges, WAN routers, and centralized services. Function: Connection point for all devices on a segment of segment of a network that breaks down and absorbs the data flow between all of the connected devices rather than flooding it to all connected devices. By bundling multiple network connections into a single high-bandwidth link, aggregation switches help. Another group focuses on the aggregation switch because it controls routing, redundancy, VLAN boundaries, and traffic policy. Engineered to aggregate massive volumes of data from distribution switches, it provides ultra-low latency and maximum throughput to ensure uninterrupted routing and packet. CloudEngine S12700H series switches are Huawei's next-generation modular core/aggregation switches designed for high-end campus networks in the all-wireless era of Wi-Fi 6/7. CloudEngine S12700H series switches come in two models, which offer four and eight LPU slots, respectively. The main responsibility of these.