Modern AI workloads, particularly those driving generative and reasoning-based applications, are highly distributed and communication-intensive. Whether training large language models across multiple GPU nodes or delivering real-time inference under strict latency constraints, networking performance becomes as critical as compute and memory.

Unlocking Performance with NVIDIA Spectrum-X

NVIDIA Spectrum-X is a purpose-built, end-to-end Ethernet networking platform optimized to maximize the performance and efficiency of NVIDIA GPUs in modern cloud environments. It includes:

Spectrum-4 Ethernet Switches

Offering up to 64 ports of 800GbE in a compact 2U form factor, Spectrum-4 delivers an industry-leading total throughput of 51.2 terabits per second (Tb/s).

BlueField-3 SuperNICs

These advanced network accelerators provide up to 400GbE RoCE connectivity between GPU servers, enabling NVIDIA GPUDirect RoCE to maximize AI workload efficiency.

The Importance of Automated Networking Management

In multi-tenant AI clouds, ensuring network isolation and maintaining consistent performance across tenants are critical. Spectrum-X delivers the foundational capabilities needed to support secure and efficient multi-tenant operations.

Traffic Isolation

Enforces strict separation between tenant traffic, preventing noisy neighbors and maximizing security in multi-tenant AI environments.

Quality of Service (QoS) and Fair Scheduling

Ensures each tenant receives consistent network performance, critical for maintaining service level agreements (SLAs).

Zadara’s Innovative Approach to Spectrum-X Integration

Zadara’s platform architecture has long supported secure, multi-tenant cloud operations, and we’ve extended it with new capabilities to take full advantage of Spectrum-X’s high-performance and traffic isolation features.

Network-Aware Multi-Tenant Design

Zadara’s platform integrates software-defined networking (SDN) and tenant isolation, ensuring compatibility with Spectrum-X’s granular control capabilities.

GPU-Net: Zadara’s Transparent, Policy-Based GPU Networking

Zadara automates the deployment and lifecycle management of GPU-Net over a backend switching fabric compatible with Spectrum-4 and aligned with NVIDIA’s reference architecture.

Benefits of Zadara’s Solution

Consistent Low Latency at Scale

Zadara’s orchestration intelligently aligns GPU-Net configuration and virtual machine placement with Spectrum-X’s rail-group topology, following NVIDIA’s best practices for deterministic performance.

Flexible GPU Infrastructure

Zadara supports dynamic GPU resource allocation to different tenants with zero work required from the NCP.

By leveraging NVIDIA Spectrum-X and Zadara’s advanced networking capabilities, organizations can build high-performance AI clouds that deliver scalable, secure, and efficient multi-tenant operations.