Arista 7812 AI / Hyperscale Spine
Hyperscale AI spine chassis for 400G AI/ML cluster fabrics
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Rooted in critical infrastructure
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Technical specifications
Full specification overview for the Arista 7812.
DCS-7812 (12-slot)
Arista 7812
Ports
Up to 576 × 400G / 1152 × 200G
Speed
400G / 800G OSFP
Uplinks
Up to 576 × 400G
Throughput
230+ Tbps
Form factor
Chassis
Why Arista 7812
GPU-to-GPU Bandwidth
Ultra-high bandwidth interconnects eliminate the network as a bottleneck in distributed AI training.
RDMA & RoCEv2
Hardware-accelerated RDMA over Converged Ethernet for GPU-direct communication.
AI Workload Optimised
Purpose-built for all-to-all communication patterns of large-scale AI and HPC training jobs.
One operating system for every Arista switch
Arista EOS is a single, consistent operating system running across every switch in your network — from 1 Gbps access to 400 Gbps spine. It's fully programmable, Linux-based and built for automation from day one.
Extensible Operating System
Linux kernel · Multi-agent · State-driven
Fully Programmable
Every EOS feature is accessible via REST API, gRPC and Python — automate anything without vendor-specific tooling.
Open & Extensible
Run custom agents and open-source tools directly on the switch OS — no proprietary SDKs required.
Consistent CLI
One unified CLI across every Arista platform — no relearning when you scale or upgrade hardware.
State-Driven & Telemetry-Ready
Streaming telemetry and state-driven forwarding give real-time visibility into every packet path.
CloudVision: network-wide intelligence
Arista CloudVision provides a single pane of glass for provisioning, telemetry and compliance across your entire Arista estate.
Zero-Touch Provisioning
New switches are provisioned automatically via CloudVision — no manual CLI work required.
Real-Time Telemetry
Streaming telemetry from every switch gives you sub-second visibility into traffic, errors and events.
Change Control & Rollback
Every configuration change is audited and reversible — roll back to any previous state in seconds.
Compliance & Security
Continuous compliance checks detect drift from your golden config and alert before issues escalate.
Where {name} fits in your network
Typical deployment roles for the Arista 7812 — based on real-world customer architectures.
Spine / Core
Hyperscale spine providing terabit-class bandwidth across hundreds of leaf switches.
Reference topology
How we deliver your hardware
From your order to a running system — handled end to end by us.
Configure & Order
Choose your chassis, CPU, RAM and storage using our configurator. We generate a binding quote within 24 hours.
Integration & Testing
We assemble, configure and burn-in your system in our integration center. Full factory acceptance test included.
Rack-Ready Delivery
Your server arrives configured, tested and ready to rack. Optional on-site installation available.
