NVIDIA Spectrum SN4000 Series MSN4700-WS2FC 400GbE Data Center Switch

1. Product Overview

The NVIDIA Spectrum SN4000 Series MSN4700-WS2FC is a high-performance 1U open Ethernet switch designed for modern data centers requiring high-speed, low-latency, and scalable networking. It features 32 QSFP-DD ports supporting speeds from 1GbE to 400GbE, making it ideal for spine, super-spine, and high-density leaf deployments. Powered by the Spectrum-3 ASIC, it delivers 12.8 Tb/s switching capacity and 8.4 Bpps throughput with consistent low latency and advanced telemetry.

2. Key Characteristics

• 32 x QSFP-DD ports supporting 1/10/25/40/50/100/200/400GbE speeds
• 12.8 Tb/s bidirectional switching capacity
• 8.4 Bpps packet processing rate
• 64 MB fully shared packet buffer
• Hardware-accelerated telemetry (WJH, INT, Streaming Telemetry)
• Support for Cumulus Linux, ONIE, and SONiC NOS
• Hot-swappable power supplies and fans
• RoCE and GPUDirect® support for AI and machine learning workloads

3. Core Technologies

The MSN4700-WS2FC leverages NVIDIA’s Spectrum-3 ASIC, which supports advanced features including VXLAN routing, IPv6 segment routing, NAT, and programmable pipelines. It is compatible with open networking operating systems such as Cumulus Linux, SONiC, and ONIE, providing flexibility and avoiding vendor lock-in.

4. Working Principle

The switch uses cut-through forwarding to minimize latency. The Spectrum-3 ASIC employs a fully shared packet buffer architecture to ensure fair and predictable performance under varying traffic conditions. Hardware-based telemetry collects real-time data for deep network visibility and rapid troubleshooting.

5. Applications

• Data center spine and super-spine layers
• Cloud infrastructure and hyper-scale data centers
• AI and machine learning clusters
• High-performance computing (HPC) environments
• Storage area networks (SAN) and hyperconverged infrastructure (HCI)

6. Specifications & Selection Guide

7. Advantages & Selling Points

• Industry-leading port density and flexibility in a 1U form factor
• Advanced telemetry for real-time network insight and reduced MTTR
• Support for multiple open network operating systems
• Optimized for RoCE and AI workloads with GPUDirect® support
• Future-proof design with support for emerging protocols and speeds

8. Service & Support

All NVIDIA Spectrum SN4000 series switches come with a one-year limited hardware warranty. Optional support services include next-business-day advance replacement, 4-hour technician dispatch, and remote or on-site installation and configuration services. Global technical support is available via NVIDIA’s support portal.

9. Frequently Asked Questions

Q: What operating systems are supported on the MSN4700-WS2FC?
A: It supports Cumulus Linux, SONiC, ONIE, and NVIDIA Onyx.

Q: Can the ports be split to lower speeds?
A: Yes, each 400GbE port can be split into 2x200GbE or 4x100GbE using breakout cables.

Q: Is the switch compatible with third-party optics?
A: Yes, it supports a wide range of NVIDIA and third-party DAC, AOC, and optical modules.

10. Precautions

• Ensure compatible transceivers and cables are used as per NVIDIA’s compatibility matrix.
• Operating temperature: 0°C to 40°C; humidity: 5% to 85% non-condensing.
• Complies with safety standards: CE, FCC, RoHS, and CB.
• Use only certified hot-swappable power supplies and fans for redundancy.

11. Company Introduction

With over 10 years of industry experience, we operate a large factory supported by a strong technical team. We have served a wide range of customers and offer competitive pricing on high-quality networking products. Our portfolio includes brands such as Mellanox, Ruckus, Aruba, and Extreme. We supply original new network switches, network cards, wireless access points, controllers, and cables. With over 10 million units in inventory, we provide large-volume supply and 24/7 customer service and technical support.