Cisco Aci -

The "brains" of the operation. It is a centralized software controller that manages automation, policy enforcement, and health monitoring.

Instead of configuring VLANs or ACLs on individual switches, you define "policies" in the APIC that automatically propagate across the entire fabric. Key Concepts & Terminology Cisco ACI

The physical fabric uses Cisco Nexus 9000 Series switches in a topology where every leaf switch connects to every spine switch, ensuring high performance and low latency. The "brains" of the operation