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Broadcom’s OCP Slate: Tomahawk 6 Davisson CPO and Ethernet for 100,000-Accelerator Clusters

by Chris DePuy, 650 Group / October 9, 2026

This week, Broadcom announced its 2026 OCP Global Summit slate, placing its AI networking lineup — the Tomahawk 6 and Tomahawk Ultra switch families with Jericho 4, Thor NICs at 800G (Thor Ultra) and 400G (Thor 2), and the third-generation TH6-Davisson co-packaged optics — into ORV3 rack designs for scale-up, scale-out, and scale-across AI clusters at the October 12–15 show in San Jose, with 15-plus partners demoing the gear, including Celestica, Delta, and Micas running Tomahawk 6-Davisson 102.4T CPO systems.

As 650 Group (https://www.650group.com) has been tracking in its AI infrastructure research, Ethernet keeps taking traffic from proprietary fabrics in both scale-out and early scale-up deployments, and this slate is the merchant-silicon side of that shift. We think the telling number sits in the keynote promise — switch designs aimed at clusters beyond 100,000 accelerators — because it puts the scale-up Ethernet fight on this show floor. Co-packaged optics moving into demonstration Tomahawk 6-Davisson systems matters as much: bringing optics onto the switch package attacks the power and reach penalties that have kept scale-up fabrics copper-bound, and we expect CPO attach to shift from differentiator toward requirement as rack densities climb.

The session slate — joint sessions with OpenAI on multi-path reliable connections and with Arista Networks on SUE-T scale-up transport — reads as ecosystem proof rather than a solo product push.

Abstract AI networking illustration with glowing mesh nodes
AI networking concept art for the 2026 OCP Global Summit Source Broadcom

650 Group researches several of the technologies we covered in this blog, including Data Center, Co-Location and Cloud and Enterprise.

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Chris DePuy
Technology Analyst and co-founder of 650 Group