---
title: "Ethernet"
description: "1 posts about Ethernet, summarised, each linking to the original."
---

# Ethernet
> 1 posts about Ethernet, summarised, each linking to the original.

## Articles

### [MetaRoCE: A New RDMA Transport Built for AI-Scale Ethernet](https://yomu.fyi/post/metaroce-a-new-rdma-transport-built-for-ai-scale-ethernet.md)
- Company: [Meta](https://yomu.fyi/company/meta.md)
- Author: By Arvind Srinivasan, Neil Spring, Omar Baldonado, Rajiv Krishnamurthy
- Published: Aug 24, 2026
- Type: Announcement

Meta has designed MetaRoCE, a clean-sheet RDMA transport for AI workloads running on commodity Ethernet, targeting clusters that can reach million-GPU scale. Unlike standard RoCE, it treats packet loss and out-of-order delivery as normal: packets are sprayed across NIC-managed paths, written directly to their destinations, and retransmitted selectively without PFC or reorder buffers. It combines per-path telemetry and congestion windows with ECN-based sender control and receiver-driven fair-share hints, while a single connection supports multiple ordered streams and paths. On a 64-node AMD GPU cluster using RCCL collectives, Meta reports higher throughput and lower flow-completion times than RoCEv2, about 86% throughput at 1% packet loss, linear scaling across four- and eight-plane topologies, and autonomous recovery from plane failures. Meta is contributing the specification, reference implementation, and compliance suite to OCP, with a broader release planned for October at the 2026 OCP Global Summit.