Meta Networking at the 2026 OCP Global Summit: Open Innovation for Scale-Up, Scale-Out, and Scale-Across AI Networks

What happened

Icecube and N-IceCube (Nanosatellite) are based on a 2OU, hybrid liquid/air-cooled, PHY-less design and incorporate either the Broadcom Tomahawk 6C or NVIDIA Spectrum-6 ASICs with 128x800GE of non-blocking capacity. 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. Broadcom is a semiconductor company based in Irvine.

Flattened Planar Fabric (FPF) for scale-out: Meta’s multi-plane scale-out fabric where each GPU (a chip built for many calculations at once, used for graphics and AI) connects to eight network planes. 3-tier → 2-tier Clos, NIC-level packet spraying, and a combined host+switch control plane.

Ethernet for scale-up : Tahan, the Ethernet scale-up switch for MTIA 300 based on Broadcom Tomahawk5; a preview of 72 accelerators per rack on 102.4T silicon; and ESUN progressing from 1.0 → 1.1. OSPA: a new OCP initiative co-led by Meta, Microsoft, and Alibaba to standardize the switch platform layer .

Keynote and Executive Sessions Concrete to Code: Engineering AI Infrastructure at Gigawatt Scale ( video ) AI has changed the shape of infrastructure. Santosh Janardhan, Head of Infrastructure at Meta, shares how Meta is designing, building, and operating at a scale that requires rethinking the network, the facility, and the systems that hold it all together.

Speaker: Santosh Janardhan, Head of Infrastructure, Meta Betting on the Network: Meta’s Case for Full-Stack, Open AI Networking ( video ) AI progress now depends on the network as much as on compute. The path forward is a full-stack, open approach built in the open ecosystem rather than behind proprietary walls.

Speaker: Omar Baldonado, Senior Director, Data Center & AI Networking, Meta Breaking the Walls: Open Scale-Across for the AI Era ( video ) Training compute is compounding faster than infrastructure can scale.