ANET · 8-K · 20261103PR000252

AI Network Technology

Arista Networks, Inc. · 2026-11-03 · Importance 38 · Surprise 42

Arista announced open Ethernet rack-scale architectures for scale-up and scale-out AI fabrics in partnership with AMD, Arm, Broadcom, d-Matrix, Meta, Microsoft, and Qualcomm. Its liquid-cooled portfolio includes the Etherlink™ SU-144 architecture, which supports up to 144 accelerators per rack in a single hop and can scale to 1,024 XPUs through cross-rack topologies. Arista also described a distributed AI-fabric strategy using the Arista 7800 AI Spine, Arista EOS®, and SRv6-based multiplane forwarding to support fabrics across geographically distributed data centers with up to one million XPUs.

Key facts

• Arista's Etherlink SU-144 architecture supports up to 144 accelerators per rack in a single hop and scaling up to 1,024 XPUs via cross-rack topologies. source
• Arista's scale-across AI networking strategy uses SRv6 multiplane forwarding, deterministic routing, and real-time congestion signaling to enable AI fabrics across geographically distributed data centers up to one million XPUs. source