Besides ensuring the persistent connection of end users as well as the upper distribution and core layers, an access switch is expected to meet the requirement of the access layer including simplifying the network management, providing security services, and other specific. Besides ensuring the persistent connection of end users as well as the upper distribution and core layers, an access switch is expected to meet the requirement of the access layer including simplifying the network management, providing security services, and other specific. An access switch is a network edge device that directly connects end-user hardware such as computers, IP phones, wireless access points, cameras, and IoT devices to the broader network. It typically sits at the access layer, provides high port density, often delivers PoE, and forwards traffic. The access layer consists of layer 3 switches, which take routed and switched data packets from the distribution switches and then route them to the access devices in subnets. The access devices in subnets can be modems, video display units, receiver audio phones, IP-based devices, etc. It assists mainly in the switching of incoming and outgoing data packets to the right destination, as specified in MAC. In a typical enterprise network architecture, the access layer switch is the first point of contact between end-user devices and the rest of the network. It plays the role of connecting end-users or end nodes such as PCs, printers, wireless access points to the network. The access layer is supposed to facilitate the continuous. The access switch is the only one that directly interacts with end-user devices.