VIAVI Solutions has released what it calls the first validation solution built specifically for Ultra Ethernet Transport, a protocol designed to fix the networking bottlenecks that traditional Ethernet creates inside AI data centers. The tool, which launched on June 23, plugs directly into VIAVI’s existing TestCenter platform and lets companies emulate realistic AI workload traffic without needing actual GPUs to do it.
What Ultra Ethernet actually solves
The Ultra Ethernet Consortium, whose founding members include AMD, Arista, Broadcom, Cisco, HPE, Intel, Meta, and Microsoft, was established around 2023 to tackle exactly this problem. The group released its formal Specification 1.0 on June 11, 2025, codifying the Ultra Ethernet Transport protocol with improvements to congestion control and scalability for AI and high-performance computing environments.
The tool validates several key capabilities that the UET protocol introduces. These include reliable ordered and unordered packet delivery, packet trimming, congestion control mechanisms, and dynamic multipathing.
Who this is built for
