NVIDIA Spectrum-2 SN3700C - 32× 100GbE QSFP28 High-Performance Leaf/Spine Switch (REF)

NVIDIA Spectrum-2 SN3700C is a high-performance 100GbE open Ethernet switch built for modern data centres, cloud environments, and enterprise networks requiring predictable, ultra-low-latency switching. Powered by the Spectrum-2 ASIC, it delivers a fully non-blocking 3.2 Tbps switching capacity and 4.76 Bpps forwarding rate, ensuring consistent performance under any traffic pattern, without packet drops or microbursts. With 32 × QSFP28 ports, the SN3700C supports flexible speeds including 10/25/40/50/100GbE, making it ideal for high-density leaf, spine, and storage networking deployments.

Designed for open networking, the SN3700C supports multiple network operating systems such as NVIDIA Onyx, Cumulus Linux, and SONiC, giving organisations complete flexibility in how they build and automate their infrastructure. Its hot-swappable redundant power supplies, advanced congestion control, integrated telemetry, and 1U compact design make it a reliable, scalable solution for AI workloads, cloud-native applications, virtualization, and distributed storage environments that demand deterministic, lossless Ethernet performance.

KEY FEATURES:

• 32 × QSFP28 Ports: Supports 10/25/40/50/100GbE with flexible breakout options for high-density deployments
  
• 3.2 Tbps Switching Capacity: Non-blocking fabric delivers full line-rate performance across all ports
  
• 4.76 Bpps Forwarding Rate: Hardware-accelerated packet processing ensures ultra-low-latency switching
  
• Spectrum-2 ASIC: Predictable performance under any traffic pattern with zero packet loss architecture
  
• Open Networking Support: Compatible with NVIDIA Onyx, Cumulus Linux, and SONiC
  
• Advanced Telemetry: Built-in monitoring for real-time flow visibility, congestion detection, and analytics
  
• Redundant Hot-Swappable Components: Dual PSUs and modular fans for continuous, high-availability operation
  
• VXLAN/EVPN Support: Hardware-based virtualisation for multi-tenant and cloud environments
  
• Flexible Airflow Options: Available in front-to-back and back-to-front cooling models
  
• Compact 1U Design: High port density and low power consumption for efficient leaf or spine deployment

TECHNICAL SPECIFICATION:

HARDWARE:

PERFORMANCE:

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PHYSICAL & ENVIRONMENTAL:

ADVANCED FEATURES:

Predictable Zero-Loss Architecture:

Built on the Spectrum-2 ASIC, the SN3700C delivers completely predictable forwarding with zero packet loss under any traffic condition, including microbursts and mixed workloads. Its highly deterministic architecture ensures consistent low latency and full line-rate performance, making it ideal for demanding AI, cloud-native applications, and scale-out storage environments where performance stability is critical.

Advanced VXLAN & EVPN Fabric Capabilities:

The SN3700C provides hardware-accelerated VXLAN and EVPN support, enabling seamless Layer 2 extension over Layer 3 networks. This allows operators to build scalable, multi-tenant cloud fabrics and easily integrate virtualized workloads. EVPN-based control plane optimizes MAC/IP learning, simplifies network segmentation, and enhances redundancy, making the switch suitable for modern cloud and data centre deployments.

Comprehensive Quality of Service (QoS):

Engineered for latency-sensitive workloads, the switch offers advanced QoS features including per-port traffic shaping, CoS/DSCP prioritisation, queue scheduling, and congestion management. These capabilities ensure fair bandwidth allocation while prioritising critical applications such as AI inference, VoIP, video, and HPC workloads.

Deep Visibility & Real-Time Telemetry:

The SN3700C integrates extensive real-time telemetry features, including flow tracking, sFlow, IPFIX, and congestion visibility. Combined with Cumulus NetQ or NVIDIA NetQ tools, operators gain actionable insights into traffic patterns, queue occupancy, packet drops, and network anomalies. This facilitates faster troubleshooting and proactive capacity planning across large distributed networks.

Automation & Open Networking Flexibility:

With support for Cumulus Linux, SONiC, and NVIDIA Onyx, the SN3700C enables full open-network programmability. Using APIs such as gNMI/gRPC, REST, and JSON-RPC, administrators can automate provisioning, monitoring, and configuration tasks. Integration with automation tools like Ansible, Chef, and Puppet simplifies deployments, improves consistency, and reduces operational overhead in large-scale infrastructures.

High Availability & Redundant Design:

The SN3700C incorporates data centre-grade resiliency with hot-swappable power supplies and fans, ensuring continuous operation even during component failures. Its hitless upgrade support and rapid failover mechanisms minimise downtime, making it well-suited for mission-critical enterprise, cloud, and telecom environments that require 24/7 uptime.

ORDERING INFORMATION:

SUPPORT:

All refurbished products sold on Grabnpay are tested, verified, and delivered in good working condition. Our team provides assistance with installation, configuration, and troubleshooting to ensure smooth operations. Please note that for refurbished products, no manufacturer warranty, vendor support, or license coverage applies. For any issues, our technical support team will guide you with solutions and recommend suitable replacements or upgrades if required.