The NVIDIA Mellanox MSN4700-WS2RC is an enterprise-class, Spectrum-3 ASIC-based 400GbE open Ethernet switch designed for high-performance data center deployments. This 1U form factor switch delivers 32 QSFPDD ports supporting flexible port speeds from 1GbE to 400GbE, enabling seamless connectivity across heterogeneous network endpoints. With a switching capacity of 25.6Tb/s and forwarding rate of 8.4Bpps, the MSN4700-WS2RC provides non-blocking, wire-speed performance for demanding leaf/spine/super-spine architectures. Pre-installed with Cumulus Linux, the switch supports comprehensive Layer 2/3 protocols including MLAG, BGP-EVPN, VXLAN, MPLS, and ECMP, along with advanced features like RoCE, PFC, ECN, and deep packet inspection (512B depth). Dual hot-swappable AC power supplies and six N+1 redundant fans ensure high availability. The switch includes 16GB system memory, 64GB SSD storage, and a quad-core x86 CPU for robust management and telemetry. Ideal for cloud-scale deployments, HPC clusters, and AI/ML infrastructure requiring ultra-low latency and massive bandwidth.
32x 400GbE QSFPDD ports with flexible 1G-400G per-port speed.
25.6Tb/s switching capacity with 8.4Bpps forwarding rate.
650ns cut-through latency for ultra-low-latency applications.
Cumulus Linux with MLAG, BGP-EVPN, VXLAN, MPLS, RoCE support.
Dual 1+1 hot-swappable AC power supplies and N+1 fan redundancy.
Deep packet inspection, INT telemetry, and 512K flow counters.
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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.
Priority Flow Control (PFC), Explicit Congestion Notification (ECN)
Jumbo Frames
9,216 bytes supported
Product Line
Spectrum SN4000 Series
Compatible systems
The MSN4700-WS2RC is a standalone, enterprise-grade data center switch compatible with standard 19-inch racks, dual AC power infrastructure, and industry-standard QSFPDD optics. Pre-installed Cumulus Linux supports comprehensive Layer 2/3 protocols and SDN integration. Designed for integration into modern data center fabrics (leaf/spine/super-spine) and cloud-scale deployments without requiring proprietary management systems.
NVIDIA Spectrum SN4000 Series
Model: MSN4700-WS2RC
Form factor: 1U Rackmount
Generation: Spectrum-3 ASIC
Designed for leaf/spine/super-spine data center architectures; compatible with standard 19-inch EIA racks with C2P (front-to-back) airflow.
Best for
Data Center Spine/Super-Spine
Backbone switching for large-scale data center fabrics requiring ultra-high bandwidth and low-latency interconnection between leaf switches and core infrastructure.
Cloud Service Provider Networks
Multi-tenant cloud environments leveraging VXLAN, EVPN, and cloud-scale NAT (100K+ sessions) for flexible network virtualization and tenant isolation.
High-Performance Computing (HPC)
Scientific computing clusters and supercomputing facilities requiring 25.6Tb/s non-blocking throughput and 650ns cut-through latency for tightly coupled parallel workloads.
AI/ML Infrastructure
GPU-accelerated machine learning clusters utilizing RoCE (RDMA over Converged Ethernet) with PFC and ECN for lossless, low-latency data movement between compute nodes.
Details
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New, certified-refreshed and OEM stock with guaranteed compatibility, backed by warranty on every part.
1.72" (H) x 16.85" (W) x 22.3" (D) / 44mm (H) x 428mm (W) x 568.5mm (D)
Compliance Standards
Environmental Compliance
RoHS compliant
Environmental Condition
Operating Humidity
5% to 95% non-condensing
Storage Temperature
-40°C to 70°C
Operating Temperature
0°C to 45°C
Financial Services Networks
Ultra-low latency trading and financial data networks requiring consistent 650ns latency, PTP/SyncE precision timing, and deterministic packet forwarding.
Enterprise Data Center Modernization
Next-generation data center upgrades consolidating multiple legacy switch tiers into single unified 400GbE fabric with flexible port speed adaptation.
Frequently asked questions
What is the switching capacity and forwarding rate of the MSN4700-WS2RC?
The MSN4700-WS2RC delivers 25.6Tb/s non-blocking switching capacity with 8.4Bpps (billion packets per second) forwarding rate. This enables wire-speed, full-duplex performance across all 32 ports simultaneously, supporting demanding applications like HPC, AI/ML, and cloud-scale data centers without performance bottlenecks.
Does the MSN4700-WS2RC support RDMA and RoCE for GPU clusters?
Yes. The switch provides comprehensive RoCE (RDMA over Converged Ethernet) support with Priority Flow Control (PFC) and Explicit Congestion Notification (ECN) for lossless, low-latency data movement. This enables efficient GPU-to-GPU communication in AI/ML clusters and HPC environments, leveraging NVIDIA GPUDirect for intelligent hardware-accelerated congestion management.
What port speed flexibility does the MSN4700-WS2RC offer?
Each of the 32 QSFPDD ports supports flexible speeds: 400G, 200G, 100G, 50G, 40G, 25G, 10G, and 1G. This allows seamless connectivity to heterogeneous endpoints without requiring separate switch tiers, simplifying network architecture and reducing operational complexity in mixed-speed environments.
What operating system and routing protocols are supported?
The switch runs Cumulus Linux, a Linux-based NOS supporting comprehensive Layer 2/3 protocols: BGP-EVPN, VXLAN, MPLS, ECMP, MLAG, STP/RSTP/MSTP, OSPFv2/v3, and RIP. It also supports OpenFlow for SDN integration and cloud-scale NAT with 100K+ concurrent sessions, enabling flexible network virtualization and programmability.
What redundancy and high-availability features are included?
The MSN4700-WS2RC includes dual 1+1 hot-swappable AC power supplies (100-264VAC, 50-60Hz) and six N+1 hot-swappable fans. It supports MLAG for multi-chassis link aggregation, BFD for fast failover, and graceful restart (GR) for non-disruptive maintenance, ensuring carrier-grade availability for mission-critical deployments.
What is the latency performance and how does it compare to competitors?
The MSN4700-WS2RC achieves 650ns cut-through latency, among the lowest in the industry. This consistent, predictable latency is critical for ultra-low-latency applications like financial trading, real-time analytics, and tightly coupled HPC workloads where microsecond-level delays impact performance and competitiveness.
What telemetry and visibility features does the switch provide?
The switch includes Inband Network Telemetry (INT)-ready hardware, streaming telemetry, 512K on-chip flow counters, and What-Just-Happened (WJH) diagnostics. Deep packet inspection up to 512 bytes enables comprehensive traffic analysis, reducing mean-time-to-resolution (MTTR) for network issues and supporting advanced monitoring and analytics.
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