Explanation
Control-Plane Nodes - Map System that manages Endpoint to Device relationships Fabric Border Nodes - A Fabric device (e.g. Core) that connects External L3 network(s) to the SDA Fabric Fabric Edge Nodes - A Fabric device (e.g. Access or Distribution) that connects Wired Endpoints to the SDA Fabric Fabric Wireless Controller - A Fabric device (WLC) that connects APs and Wireless Endpoints to the SDA Fabric Reference:
https://www.cisco.com/c/dam/m/hr_hr/training-events/2019/cisco-connect/pdf/VH-Cisco-SD-Access-Connecting