THE MACHINE ROOM
SECTION 04
ISSUE 001
Co-Packaged Optics Crosses the Rack
Observed now: Broadcom supports co-packaged optics on a 102.4-Tbps AI switch; NVIDIA documents co-packaged optical switching, congestion control, and multi-data-center scale-out. Optics is moving closer to switching silicon. Its durable advantage still depends on measured power, latency, footprint, and reliability across deployed networks, not peak bandwidth alone.
Why this idea is here
What the evidence establishes.
Broadcom documents a 102.4-Tbps Ethernet switch with AI routing features and support for co-packaged optics; NVIDIA documents AI-optimized Ethernet, co-packaged optical switching, congestion controls, and multi-datacenter scale-out. These are source-backed premises for this observed signal; they do not by themselves prove broad adoption or the eventual outcome.
Source ledger
Read the sources.
- S01Broadcom Ships Tomahawk 6
official hardware announcement / published 2025-06-03 / retrieved 2026-07-09
- S02NVIDIA Spectrum-X Ethernet
official product documentation / published 2026-07-09 / retrieved 2026-07-09