800G AI RoCE Data Center Network Solution

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800G AI RoCE Data Center Network Solution

SwitchInfra 800G AI RoCE solution provides next-generation bandwidth density for the largest GPU clusters. 800G high-density spine-leaf fabric scales AI clusters efficiently with limited racks and ports, while Tomahawk 5 silicon plus 800G LPO optics cut power and cooling costs, reducing overall TCO. The solution incorporates DCQCN congestion control with hardware PFC and ECN to eliminate GPU network stalls. Shared deep buffers absorb microbursts from synchronized all-reduce operations, while intelligent load balancing prevents flow polarization. With AmpCon-DC automated provisioning, operators can deploy and scale 800G fabrics with zero-touch efficiency.

2x Bandwidth Density

800G ports double the bandwidth per RU compared to 400G, enabling larger GPU clusters in fewer racks. 64x800G spine switches support thousands of GPUs with full bisectional bandwidth.

50% Lower Optical Power

Linear-drive pluggable optics (LPO) eliminate the DSP chip from 800G modules, cutting per-port optical power by half. In a 1000-GPU cluster, this translates to tens of kilowatts saved.

Microsecond Visibility

In-band Network Telemetry (INT) provides microsecond-granularity visibility into every packet's queue depth, latency, and path. AmpCon-DC correlates telemetry with training job performance.

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Why 800G AI RoCE

Eliminate GPU Stalls

800G port speeds combined with deep buffers and PFC/ECN eliminate the congestion drops that cause GPU idle cycles during all-reduce. End-to-end lossless transport keeps GPUs computing.

Reduce TCO

Tomahawk 5 single-chip architecture eliminates chassis midplane interconnects and reduces power per 100G by 40%. LPO optics cut optical power by 50%, further reducing cooling and energy costs.

Scale with Confidence

800G spine-leaf fabric scales to support GPU clusters of any size. Standard Ethernet based architecture enables incremental expansion without the cost and complexity of proprietary fabrics.

Deploy at Speed

AmpCon-DC pre-validated templates and zero-touch provisioning reduce fabric deployment from weeks to hours. Automated validation ensures every link meets performance specifications before production.

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Scale your AI infrastructure to 800G

SwitchInfra 800G AI RoCE solution delivers lossless networking for the next generation of AI clusters. Connect with our architects to design your 800G fabric.

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800G AI RoCE Data Center Network Solution