Skip to content

Fiber Networks Innovations for AI at Scale#

@Scale: Networking 2026 digest Program Core pick 25 August 2026

Abstract Materials

Fabrice Ouandji (Meta), Sebastian Gault (Meta)

  • Why: Once transports and fabrics are sorted, the binding constraint for mega clusters is the physical fiber plant: exploding fiber counts, demand landing in unpredictable places, and compressed delivery timelines. This is the physical-layer heart of the program — the PM's cabling and fiber-plant territory — and the conference site pairs it with a featured article on the NAO mega cluster's fiber build.
  • What: The connectivity challenge created by Prometheus: significantly higher fiber count requirements, highly dynamic demand location, and compressed delivery timelines, and the innovations required to meet that demand across multiple data centers in the cluster. (from abstract only)
  • How: Not specified in the abstract — the talk covers the fiber-plant and delivery innovations themselves; no mechanism detail is available from the program.
  • Where applicable: Meta's Prometheus/NAO mega-cluster build — org-specific scale and timelines, but the problem (fiber-count explosion plus unpredictable demand placement across a multi-building campus) is universal for anyone building AI campuses.