Cisco network service architecture, designing, modern data center, virtualized infrastructure, rack-mounted servers, multiple switches, routers, firewalls, network storage devices, cables, patch panels, cooling systems, raised flooring, high-availability clustering, virtual local area networks (VLANs), redundant connections, network management software, monitoring tools, 3D visualization, futuristic, sleek, metallic, LED lighting, air conditioning vents, server room, rows of racks, detailed textures, reflective surfaces, ambient Occlusion, cinematic composition, wide-angle lens.