Includes dual power supplies, hot-swappable modules, link aggregation (LAG), and support for HSRP/VRRP. Modular chassis or stackable designs make it easy to scale as your network grows. Core switches utilize both physical and logical redundancy mechanisms. Logically, they implement redundancy protocols like Virtual Router Redundancy Protocol (VRRP) and Hot Standby Router Protocol (HSRP), which. What is a Core Switch? A core switch is the primary switch installed at the backbone of a layered or hierarchical network. Sitting at the top of the hierarchical model, core switches interconnect distribution layer switches and provide high-speed data transfer across. It is a powerful backbone switch in the center of the network core layer, which centralizes multiple aggregation switches to the core and implements LAN routing. In these switches, the data routed and switched. Core switches are the focal point for traffic control between access and distribution switches.