7800R4 Series AI Spine Switch

The Arista 7800R4 Series of purpose built modular switches deliver the industry’s highest single-hop network performance. Scaling to 460 Tbps (920 Tbps Full Duplex) of system throughput, 576 ports of 800GbE or 1152 ports of 400GbE, the very large radix of the 7800R4 series meets the needs of small and medium AI clusters in a single tier, while scaling to support tens or hundreds of thousands of accelerators in a 2-tier or 3-tier leaf-spine topology. Available in a choice of 16, 12, 8 and 4 slots, the Arista 7800R4 is the second generation of the 7800R Series and delivers a consistent architecture offering the same deep buffer, non-blocking, fully scheduled and lossless VOQ cell-spraying fabric while doubling performance and density and improving power efficiency. The Ultra Ethernet ready, fair and lossless forwarding architecture delivers best in class application performance with advanced features for visibility, telemetry and monitoring; delivering reliability, scalability and deterministic performance that is critical to maximizing accelerator utilization. All components are hot swappable, with redundant supervisor, power, fabric and cooling modules with front-to-rear airflow. The system is purpose built for business critical availability and is energy efficient with best in class power consumption. These attributes make the Arista 7800R an ideal platform for AI back-end and front-end interconnects.