At the 2026 Open Compute Project (OCP) Global Summit, Meta shared the networking innovations that are directly supporting our latest AI models, including Muse Wonder and Muse Spark, and our gigawatt-scale Prometheus cluster.
Official announcementMeta Engineering
Meta Networking at the 2026 OCP Global Summit: Open Innovation for Scale-Up, Scale-Out, and Scale-Across AI Networks
From the official release
Highlights
- IcePack & IceCube: Meta’s first liquid-cooled network rack with 102.4T switch blades (128×800G, Broadcom Tomahawk 6C and NVIDIA Spectrum-6 variants), running FBOSS.
- Flattened Planar Fabric (FPF) for scale-out: Meta’s multi-plane scale-out fabric where each GPU connects to eight network planes. 3-tier → 2-tier Clos, NIC-level packet spraying, and a combined host+switch control plane. Built with NVIDIA and shared with our cloud partners.
- Scale-across: BAG, our petabit-scale super-spine joining buildings, campuses, and regions in our gigawatt-scale Prometheus cluster, plus SRv6 regional backbones on FBOSS + SAI.
This is a short excerpt. Read the full announcement on the official source.
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