UEC · Ultra Ethernet Consortium
Ultra Ethernet Consortium: the industry group defining AI-grade Ethernet transport (UET), with packet spray, packet trimming and NSCC/RCCC congestion control.
Current numbers
1.1, released 2026-10-12Current Ultra Ethernet (UEC) specification; contract the version and profile your NICs and switches implement
Oct 14, 2025Broadcom Thor Ultra: first 800G UEC-compliant NIC (Broadcom's claim) with packet multipathing and selective retransmit; sampling at announcement
2025-06-11Ultra Ethernet Consortium UEC Specification 1.0 released (UET transport, packet spray, NSCC/RCCC congestion control, packet trimming, native RDMA)