As key components in a network architecture, access switches are fundamental and widespread in hierarchical network design. 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. In such high-capacity ethernet networks, switches are crucial as they direct data and transmit signals to the addressed devices. They enable communication, enforce traffic management, and play a vital role in maintaining efficient, secure data flow across an organization. It assists mainly in the switching of incoming and outgoing data packets to the right destination, as specified in MAC. The critical difference between a core, distribution, and access switch lies in its designated role within the three-tier network architecture.
[PDF Version]