Cisco network service architecture, modern data center, 3D futuristic background, sleek metallic structures, rows of servers, blinking lights, wires and cables, complex network topology, routers, switches, firewalls, multiple screens displaying real-time data, IT specialist, male, mature, short brown hair, glasses, white shirt, black trousers, standing, hands behind back, explaining, panoramic view, 3/4 composition, soft focus, warm lighting.