This is part 1 of our ACI fundamentals training, with Part 2, "Cisco ACI: Tenant & Fabric Connectivity," as the next step in the series. Cisco's APIC functions like a switch supervisor, configuring the fabric as if it were a single switch. The Spine/Leaf fabric discovery and self-assembly occur seamlessly, similar to plugging in the supervisor (APIC), fabric module (Spine), and blades(Leafs). This Learning Path delves into ACI's discovery process, fabric construction, and its extension to hypervisors via VMM integration, thereby expanding ACI control to the hypervisors' vSwitch. Part 2 will dive deeper into configurations that are applied to designate ports as access, trunk, or L3 ports.