Architecture (OSPA) initiative.
Meta says IceCube provides 128×800G non-blocking switching capacity and runs its FBOSS network operating system. FPF connects each GPU through eight independent 100G links to eight network planes; Meta says the design removes a switching tier relative to its prior fabric and supports larger clusters with lower latency. OSPA, co-led by Meta, Microsoft, and Alibaba, has submitted specification v1.0 to OCP. The announcement describes infrastructure intended for large AI training clusters; it does not establish independent performance results or broad deployment beyond Meta’s stated work.