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The Missing Layer in AI Infrastructure: Why AI Networking Must Be Full-Stack, Open, and AI-Operated

April 17, 2025

AI infrastructure is growing at an unprecedented pace. Enterprises are racing to build clusters of GPUs, scale up AI workloads, and modernize their data pipelines. Yet one critical layer is often overlooked in these initiatives: the network.

While AI and data leaders focus on compute, storage, and models, the network quietly becomes the bottleneck. Traditional, static networks—built for legacy application traffic—can’t handle the dynamic, latency-sensitive, high-throughput demands of distributed AI workloads. And without visibility, orchestration, and automation across the full stack, enterprise IT leaders are flying blind in one of the most critical infrastructure domains of the decade.

At ONUG, where the community has long championed open, cloud-scale networking, this challenge is both familiar and urgent. It’s time to reframe the conversation: AI networking isn’t a peripheral concern—it’s the missing layer in AI infrastructure. And the solution is not just faster switches. It’s a full-stack, open, and AI-operated networking layer designed for the AI era.

The Blind Spot in AI Buildouts

Enterprise AI infrastructure is hitting production, but many organizations are discovering that their network isn’t ready.
Why? Because today’s networks were never designed for high-volume traffic, dynamic scaling of AI, or the precision tuning required for GPU interconnects. Most enterprise networks lack native support for lossless transport, multi-tenancy, or real-time visibility—all of which are essential when running distributed AI workloads where every millisecond counts.
Meanwhile, proprietary stacks slow down innovation. Observability is fragmented. Upgrades are risky. Operators are juggling CLI scripts, YAML files, and ticketing systems just to troubleshoot basic issues.
This isn’t sustainable. And it’s not how AI infrastructure should operate.

A New Layer: Full-Stack AI Networking

To solve this, enterprises need to rethink how networks are built and managed—starting with a full-stack approach.

We break this down into two key areas:
This full-stack model includes:
Whether you’re deploying a reference architecture like NVIDIA Spectrum-X or an open fabric with SONiC, this approach ensures you’re not building AI infrastructure on a 20th-century network foundation.

Why Open Matters More Than Ever

Vendor-neutrality isn’t just a cost issue—it’s a control issue. The more proprietary your stack, the slower you move.
Open platforms like SONiC enable IT teams to:
We recently hosted a PlugFest that brought together leading switch vendors, solution providers, and enterprise users to test and validate SONiC-based fabrics. The takeaway? Open networking is no longer an experiment—it’s ready for enterprise AI at scale, and it’s being certified and hardened by the community.

From Complexity to Clarity: AI-Powered Operations

Operating AI infrastructure shouldn’t require navigating dozens of tools or relying on tribal knowledge. Networks must evolve to support simplified, AI-powered operations.

That means:
This is the future of AI networking—simplified, scalable, and guided by data.

Build the Right Layer

The network is where performance, cost, and reliability intersect—and where you can gain or lose the most.

The time is now to invest in AI networking as a full-stack discipline—not a siloed afterthought. By embracing open, AI-powered, and multi-vendor infrastructure, IT leaders can finally align the network with the speed of innovation in AI.

Meet us at ONUG Dallas, May 28–29. Stay ahead of the curve—book a 1:1 with our experts and see how Aviz accelerates AI networking
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The Missing Layer in AI Infrastructure: Why AI Networking Must Be Full-Stack, Open, and AI-Operated

AI infrastructure is growing at an unprecedented pace. Enterprises are racing to build clusters of GPUs, scale up AI workloads, and modernize their data pipelines. Yet one critical layer is often overlooked in these initiatives: the network. While AI and data leaders focus on compute, storage, and models, the network quietly becomes the bottleneck. Traditional, […]