Cisco ACI data center design and architecture, test plan, modern futuristic laboratory, rows of tall server racks, blinking LED lights, complex network cables, white clean floor, minimalistic interior design, glass walls, steel doors, central control room, large screens displaying real-time data, technicians in blue uniforms, wearing ID badges, holding tablets, focused expressions, serious atmosphere, soft fluorescent lighting, wide-angle lens, shallow depth of field, futuristic ambiance.