Arista Networks launches rack-scale AI fabric portfolio with liquid cooling, next-gen optics

Arista Networks announced an open Ethernet rack-scale portfolio for AI infrastructure, supporting up to 144 accelerators per rack with liquid cooling. The portfolio includes scale-up and scale-out architectures developed with AMD, Arm, Broadcom, d-Matrix, Meta, Microsoft, and Qualcomm. Next-generation optics quadruple rack density to 6.5 Pb/s, reducing data center footprint by nearly 50%. The company will demonstrate the solutions at the OCP Global Summit October 12–15, 2026.