Ultra Ethernet is a specification developed by the Ultra Ethernet Consortium to adapt Ethernet for large AI and HPC workloads, adding modern congestion control, multipath packet spraying, and improved RDMA-style transport. It aims to match InfiniBand's efficiency for collective communication while retaining Ethernet's openness and ecosystem. Data-center operators view it as an emerging open fabric standard for scaling GPU clusters to tens of thousands of accelerators.
Category: Network & Connectivity · Subcategory: Data Center Network Architecture · Part of the AIDC Technical Terminology reference.