The most common model is the three-tier hierarchy: Access Layer, Distribution Layer, and Core Layer. Fabric technology, an integral part of SD-Access, provides wired and wireless campus networks with programmable overlays and easy-to-deploy network virtualization, permitting a physical network to host one or more logical networks to meet the design intent. The. The access layer is where endpoints (such as phones, laptops, video-conferencing sets, printers, IoT sensors, IP cameras, and servers) are primarily connecting to the network. FortiSwitch units distribute the ports to plugs. Allow wired, wireless, or VPN access to network resources based upon the identity of the user and/or endpoint. 1X, MAB, Easy Connect, or Passive ID Differentiate between Corporate and Guest users and devices. Further, the data packets are forwarded to the addressed group of access devices. Selective routing and switching take place at the distribution layer.
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