How to Design and Validate an NVIDIA GB200 or GB300 NVL72 AI Factory

TL;DR An NVIDIA NVL72 AI factory is not a collection of GPU servers connected to a fast Ethernet network. Each rack is a tightly coupled, 72-GPU NVLink scale-up domain with rack-level firmware, power, cooling, management, and service dependencies. Additional racks are joined through a separate scale-out fabric, commonly a dual-plane, rail-optimized Spectrum-X design for current GB300 reference arc