Broadcom begin shipping Tomahawk 6 switch with 102.4 Tbps capacity

Broadcom started shipping its Tomahawk 6 switch series, offering a switching capacity of 102.4 Terabits per second in a single chip, twice the bandwidth of any Ethernet switch currently available. The switch supports 100G/200G SerDes and co-packaged optics (CPO) for scale-up and scale-out AI networks.
The Tomahawk 6 series includes an option for 1,024 100G SerDes on a single chip, supporting extended copper reach and efficient XPU and optics integration with native 100G interfaces. For optical connectivity, it offers CPO, reducing power and latency while improving reliability, building on technology from Tomahawk 4 and 5 CPO versions.
The switch’s Cognitive Routing 2.0 includes advanced telemetry, dynamic congestion control, rapid failure detection, and packet trimming, supporting AI workloads such as mixture-of-experts, fine-tuning, reinforcement learning, and reasoning models. Tomahawk 6 supports AI clusters of 100,000 to over one million XPUs, with scale-up clusters of 512 XPUs and two-tier scale-out networks at 200 Gbps per link. It uses Ethernet for both scale-up and scale-out interfaces, enabling a unified technology stack and dynamic partitioning of XPU assets.
Broadcom’s Scale Up Ethernet (SUE) Framework, announced at the Open Compute Project in April 2025, provides open specifications for scale-up interfaces for XPUs and NICs, available for free...