← Tuesday, October 13, 2026Cloud & infraRelease

Meta announces liquid-cooled racks, 102.4T switches, and an AI transport protocol

engineering.fb.com 11 min read Editor score 6/10

Preview image for Meta announces liquid-cooled racks, 102.4T switches, and an AI transport protocol

Meta is sharing IcePack liquid-cooled network racks, an IceCube 102.4T switch platform, a GPU scale-out fabric, and the MetaRoCE transport protocol. These infrastructure changes matter to engineers building large AI clusters.

What
Meta announced open networking infrastructure for AI workloads, including a liquid-cooled rack, a 102.4T switch platform, a scale-out fabric, and a transport protocol.
How
IceCube switch blades provide 128×800G non-blocking capacity inside IcePack racks, and run FBOSS using the OCP SAI interface.
Why it matters
The announced scale-up, scale-out, and multi-site networking work targets larger AI clusters and gigawatt-scale infrastructure.

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