NVIDIA Spectrum-X 将 InfiniBand 技术移植到以太网以支持 AI 网络

NVIDIA Spectrum-X demonstrates that Ethernet can compete with InfiniBand for AI training, gaining support from hyperscalers. By integrating Spectrum-4 switch ASICs with BlueField-3 SuperNICs, the platform achieves 1.6 times better AI workload performance over commodity Ethernet while maintaining familiar cost, ecosystem, and operational models for engineers. The article breaks down the three InfiniBand innovations that NVIDIA ported to Ethernet, explains how the two-component architecture functions, and outlines the skills necessary for designing these fabrics.