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MetaRoCE: Rethinking RDMA for the AI presented by Meta#

OCP Global Summit 2026 digest Program Core pick 12–15 October 2026

Abstract Recording

Arvind Srinivasan (Meta), Sandeep Nagaraja (Meta), Balakrishnan Raman (AMD)

Play the recording: MetaRoCE: Rethinking RDMA for the AI presented by Meta

  • Why: A clean-sheet replacement for RoCEv2 from one of the largest GPU-fleet operators, now being opened as a spec — directly in the PM's lossless-fabrics/RDMA core interest and a candidate competitor/complement to MRC (below).
  • What: MetaRoCE, a multipath, out-of-order, receiver-driven RDMA transport that treats Ethernet as lossy by design rather than patching lossless fabrics with more tuning; Meta is publishing the specification for industry adoption (from abstract only).
  • How: All transport intelligence is pushed into the NIC; multipath and receiver-driven delivery replace PFC-style losslessness as the reliability model.
  • Why it matters for triage: Paired with MRC and SUE-T, this is the third open transport spec from a hyperscaler this cycle — the field's verdict that decade-old RoCEv2 is done at 10k+ GPU scale.
  • Where applicable: Meta production (tens of thousands of GPUs); AMD co-presenting suggests NIC-side implementation requirements — adoption depends on NIC vendor support, so watch the ecosystem response.