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. The hierarchy Ethernet network is a three-layer integrated setup of networking devices. Core Switch Definition and Functions A Core Switch. Core switches are the focal point for traffic control between access and distribution switches. They perform a vital function in ensuring the network's reliability and stability because they are in charge of routing data across the network infrastructure in a reliable and timely manner. 488 Mpps) + (Number of 100-Megabit Ports × 0. It usually has powerful processing capabilities, high.