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Arrcus and UfiSpace Announce Ethernet System for AMD Instinct

This week at AMD Advancing AI Day in San Francisco (July 22–23, 2026), Arrcus and UfiSpace announced an integrated networking solution for AMD-powered AI infrastructure, shown alongside GIGABYTE’s GIGAPOD rack from Giga Computing built on AMD EPYC and AMD Instinct platforms. Arrcus is a leading networking software company; its ArcOS network operating system is co-validated and performance-tuned on UfiSpace’s open switches based on Broadcom merchant silicon, so operators building AMD Instinct clusters can deploy a full-featured Ethernet fabric as a tested unit rather than an open-ended integration project. ArcOS contributes scalable multi-tenant lossless Ethernet (RoCEv2), congestion management, advanced load balancing, and deep telemetry; UfiSpace supplies the high-density, power-efficient hardware, including direct liquid-cooled, OCP ORv3-ready platforms.

Data center networking for AI clusters
Data center Ethernet fabric context for AI clusters. Source: Unsplash stock photography.

The hardware span matches the performance tiers we track in data center Ethernet and AI server designs. Leaf and AI-fabric roles use UfiSpace Tomahawk 6 platforms (S9331-64HO and S9331-64HO3L) at up to 102.4 Tbps, including direct liquid-cooled variants; spine roles use Tomahawk 5 (S9321-64EO) at up to 51.2 Tbps; storage, aggregation, server access platforms. We think the combination is a clear example of how high-performance AMD Instinct clusters are being paired with cutting-edge Broadcom switch silicon and open NOS software rather than closed proprietary fabrics. 650 Group has the industry’s most in-depth data center networking market research, which includes InfiniBand, NVLink, Data Center Ethernet Switching, Merchant Silicon Data Center Switching technology, and AI servers, to name a few of our segments.