Includes dual power supplies, hot-swappable modules, link aggregation (LAG), and support for HSRP/VRRP. While edge switches handle user connectivity and routers manage external internet traffic, the core switch acts as the central nervous system bridging your entire local environment. However, understanding when to deploy a dedicated core switch versus a collapsed core architecture can mean the. Understanding the Backbone of Your Network A core switch in networking serves as the high-capacity backbone, italic centralizing data flow and ensuring efficient communication between different network segments. Simply put, it's the kingpin that keeps your network humming. In these switches, the data routed and switched. Networking infrastructures rely on various types of switches, each serving a unique purpose.