Spectrum-4 SN5000 Switches

The NVIDIA Rubin platform is a new computing platform for next-generation AI. Through the co-design of GPUs, CPUs, interconnects, and networks, it achieves high performance, low cost, and system-level security, supporting large-scale AI models and multi-agent applications.

CPO switches shorten the electrical signal path, reduce power consumption, and decrease the number of pluggable modules by co-packaging optical modules with switch chips, while improving link reliability. This breaks through the bottlenecks of traditional switch architecture in terms of transmission performance and energy consumption, and provides a technical path for future high-bandwidth computing.

This article analyzes the network architecture of the NVIDIA B300 cluster, including the dual-solution design of Spectrum-X RoCE Ethernet and Quantum-X800 InfiniBand, and introduces the key networking points of compute, storage and management networks.