UET · Ultra Ethernet Transport
The Ultra Ethernet Consortium's from-scratch AI transport, combining packet spray, NIC-side reordering, modern congestion control, and native RDMA as the open alternative to proprietary fabrics.
Current numbers
June 2025Ultra Ethernet Consortium UEC Specification 1.0 released (UET transport, packet spray, UCCM, packet trimming, native RDMA)
Jun 11 2025UEC 1.0 published — packet spray at switch, reorder at NIC, UET transport, packet trimming, native RDMA (560+ pp spec)