How AVIZ ONES Enables Secure Multi-Tenant North-South Networking in NVIDIA Spectrum-X AI Fabrics

Summary

AI infrastructure has evolved from dedicated GPU clusters into shared platforms supporting multiple users, applications, and business units. As AI environments scale, secure and consistent multi-tenancy across north-south networks becomes essential. AVIZ ONES extends tenant-aware networking beyond GPU fabrics into front-end and storage connectivity, transforming NVIDIA Spectrum-X into a cloud-ready, multi-tenant AI fabric.

Introduction

AI infrastructure is no longer single-tenant. Modern AI platforms are shared environments where GPUs, storage, and external networks must serve multiple teams simultaneously. As utilization increases, maintaining performance, security, and operational simplicity becomes critical.

NVIDIA Spectrum-X delivers high-performance Ethernet optimized for GPU east-west traffic. However, real-world AI environments require reliable north-south connectivity to storage systems, management platforms, and external enterprise networks. AVIZ ONES addresses this requirement by enabling secure, scalable multi-tenancy across north-south and storage networks within Spectrum-X fabrics.

Importance of North-South Connectivity in Multi-Tenant AI Fabrics

North-south traffic connects GPU workloads to essential external systems, making it a foundational component of AI platforms.

Key connectivity requirements include

1. Access to external data sources
2. Integration with enterprise and cloud networks
3. Communication with management and orchestration systems

Without built-in multi-tenancy, organizations face limited isolation, manual workflows, scaling constraints, and higher operational risk. As AI platforms increasingly resemble cloud platforms, tenant-aware north-south networking becomes a necessity.

Figure 1: North-South Fabric Creation & Deployment

Spectrum-X as a Hybrid AI Fabric with Multiple Network Roles

Spectrum-X is designed as a hybrid AI fabric supporting multiple network functions within a single architecture.

The fabric combines

1. A high-performance GPU east-west network
2. A scalable front-end north-south network
3. A dedicated storage network

AVIZ ONES acts as the orchestration layer that designs, provisions, and manages these networks as one logical fabric. This approach shifts infrastructure behavior from static networking to a shared AI platform model.

Tenant-Aware Networking Across North-South and Storage Fabrics

AVIZ ONES extends multi-tenancy beyond GPUs into front-end and storage networks.

Each tenant is treated as a first-class entity with

1. End-to-end traffic isolation
2. Shared infrastructure without tenant visibility overlap
3. Consistent policy enforcement across GPU, front-end, and storage networks

From GPU servers to fabric egress points, isolation is preserved while maintaining shared infrastructure efficiency.

Figure 2: Tenant Management

End-to-End Tenant Isolation from Server to Border

A core principle of Spectrum-X multi-tenant design is consistency across the entire traffic path.

Tenant traffic behavior includes

1. Tenant association at the GPU server
2. Isolation throughout fabric traversal
3. Controlled, tenant-specific egress paths

This applies uniformly to

1. North-south access to external systems
2. Storage access from GPU workloads
3. Management and control traffic

Each tenant experiences the fabric as a dedicated network, while the underlying infrastructure remains shared.

Figure 3: Tenant GPU Allocation

Platform-Level Benefits of Multi-Tenant AI Networking

The value of this approach lies in the platform capabilities it enables rather than individual features.

Organizations can

1. Offer AI infrastructure as a shared internal platform
2. Support multiple teams without redesigning networks
3. Integrate AI fabrics into cloud and PaaS ecosystems
4. Increase utilization while reducing operational risk

Networking becomes an enabler that operates transparently in the background.

Conclusion

By extending multi-tenancy beyond GPUs into north-south and storage networks, AVIZ ONES transforms NVIDIA Spectrum-X into a cloud-ready AI fabric. This architecture supports shared AI platforms, managed services, and next-generation AI workloads. The result is a secure, scalable foundation for modern multi-tenant AI data centers.