Arista Networks
400G · 800G · AI Switching

From 12.8 Tbps 400G leaf-spine fabrics to 51.2 Tbps 800G AI cluster interconnect — Arista EOS switching powers the world's largest cloud, AI, and enterprise data centres. The network behind the models.

EtherLink — The AI Networking Standard

Arista EtherLink™ is the end-to-end AI fabric portfolio — covering 800G spine (7060X6), 400G leaf (7050X4), and CloudVision AI management. Validated with NVIDIA DGX SuperPOD, AMD Instinct clusters, and major hyperscale AI training deployments, EtherLink provides a standards-based Ethernet alternative to InfiniBand with lossless RoCEv2, AI Analyzer telemetry, and deterministic forwarding.

Arista EOS — One OS, Every Platform

A single binary EOS image runs identically across the entire Arista switching portfolio — from a 48-port campus switch to a 64-port 800G AI spine. The same CLI, same API, same automation tools everywhere. EOS's multi-process architecture with Stateful Fault Containment ensures hardware forwarding never stops during software upgrades, process restarts, or live EOS patches.

CloudVision — Network-Wide Observability

Arista CloudVision provides a network-wide state database with streaming telemetry from every EOS switch. Change management, Zero Touch Provisioning, real-time topology visualisation, and instant root-cause analysis are all centralised — without SSH to individual devices. CloudVision's AI Analyzer streams per-queue congestion data at nanosecond resolution for GPU cluster performance tuning.

Deep Buffer for Bursty Workloads

The 7280R3A's 24GB ultra-deep buffer is 180× deeper than standard Tomahawk-based switches. This absorbs the long-duration bursts from storage backup, big data analytics, AI checkpoint saves, and media ingest — workloads that overwhelm shallow-buffer switches and cause TCP retransmission cascades. For storage-intensive environments, deep buffer typically improves effective throughput by 20–40%.

VXLAN BGP EVPN — Modern Fabric Native

Arista led the industry adoption of BGP EVPN as the control plane for VXLAN overlay networks. Single Pass VXLAN Routing, EVPN Multi-Site, and full L2/L3 overlay services are native in EOS across the entire switching range — enabling consistent multi-tenant data centre architectures without additional gateway appliances.

Multi-Layer Encryption

MACsec (Layer 2), IPsec (Layer 3), and VXLANsec (overlay encryption) are all hardware-accelerated in the 7280R3A at line rate. 400G ZR/ZR+ coherent optic support enables encrypted data centre interconnect without additional DCO transponder hardware — consolidating DCI, encryption, and switching into a single platform.

One OS. Every Platform.
Always Consistent.

Arista EOS runs as a single binary image across every switch — from a 1RU leaf to a 64-port 800G spine. The same CLI commands, same API calls, same automation scripts work everywhere. EOS's unique multi-process architecture separates state from forwarding — hardware forwarding never stops during software updates, process restarts, or live patches.

• ✓Single binary — one qualification, all platforms
• ✓Stateful Fault Containment — zero forwarding interruption
• ✓Full Linux shell, Python, Go, OpenConfig, gNMI, eAPI
• ✓Smart System Upgrade — hitless EOS updates in production

Network-Wide State.
Real-Time Visibility.

CloudVision collects streaming telemetry from every EOS device — building a real-time replica of your entire network's state. Change management with audit trails, Zero Touch Provisioning for new switches, instant root-cause analysis from correlated telemetry, and AI Analyzer for GPU cluster congestion — all from a single platform.

• ✓Zero Touch Provisioning — new switches auto-configure
• ✓Streaming telemetry from every device, every second
• ✓Change management with full audit trail and rollback
• ✓AI Analyzer — nanosecond-resolution GPU fabric telemetry

Arista 7060X6 Series 800G AI/ML & Data Centre Spine Switch

The Arista 7060X6 Series delivers the highest 800G port density available in a single-chip platform — up to 64× 800G OSFP800 ports and 51.2 Tbps throughput in a 2RU form factor, or 32× 800G in 1RU. Optimised for AI back-end networks with advanced DCQCN congest…