Modern Cisco digital network architecture, futuristic laboratory setting, rows of sleek black servers, blinking blue lights, complex network cables, giant screens displaying real-time data flow, a mature male engineer in white shirt and glasses, sitting on a stool, hands clasped together, focused expression, subtle facial hair, messy brown hair, minimal makeup, formal attire, tie loosened, Cisco logo on the screen, cityscape outside the window, evening time, softbox lighting, 3/4 composition, shallow depth of field.