Commutateurs Spectrum-3 SN4000

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.

Broadcom launched its Tomahawk 6 switch chip in June 2025 to meet the bandwidth demands of AI training and inference, delivering 102.4T Ethernet with open, scalable fabric—an alternative to InfiniBand.