Access switches typically operate at Layer 2 of the OSI model, forwarding data based on MAC addresses. However, many modern models also support basic Layer 3 functions such as static routing and limited dynamic routing, especially in high-performance or large-scale networks. Selecting the right switch type has a direct impact on network scalability, performance, and management efficiency. This article. 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. The access layer is the first layer of the Cisco. The OSI Model is a conceptual framework created by the International Organization for Standardization (ISO) to describe how data is transmitted across a network using a structured seven-layer architecture. Divides network communication into seven functional layers.
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