Meta AI Introduces MetaRoCE: A Clean-Sheet RDMA Transport Built for AI-Scale Ethernet

Meta has developed MetaRoCE, a new RDMA transport protocol designed for AI workloads on commodity Ethernet, which shifts ordering and recovery responsibilities from the network to the NIC. The protocol aims to improve performance in large-scale AI training clusters by treating the network as lossy and enabling packet spraying across multiple paths. Meta plans to release the specification, software implementation, and compliance test suite via the Open Compute Project, with hardware support in an