Cisco network service architecture, designing, data center, cloud computing, virtualization, servers, racks, cables, routers, switches, firewalls, modems, Wi-Fi, 3D futuristic background, neon lights, circuit boards, wires, screens displaying network topology, IT engineers, male and female, casual wear, ID badges, laptops, tablets, standing, sitting, discussing, pointing, gesturing, modern office, glass tables, leather chairs, city skyline view, daytime, softbox lighting, shallow depth of field.