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. 1X support, SNMP, CLI/Web GUI, and network access control. Generally, multiple data switches are used at the core layer of a network so that a large amount of data can be routed to the layers in the hierarchy. In these switches, the data routed and switched. Its primary function is to rapidly forward data packets between different aggregation switches and, ultimately, to the internet.