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. This article will introduce what the access switch is and how to select the right access layer switches for your enterprise network. What is the. As the bottom layer of the hierarchical internetworking model, the access layer is also known as the desktop layer. It connects end-users or end nodes to the network, such as PCs, printers, and wireless access points. Access switches are known for their low.