Suggested Alternatives
NVIDIA Quantum-2 MQM9701-NS2R InfiniBand DGX Switch
The NVIDIA Quantum-2-based QM9701 switch system delivers an unprecedented 64 ports of NDR 400Gb/s InfiniBand per port in a 1U standard chassis design. A single switch carries an aggregated bidirectional throughput of 51.2 terabits per second (Tb/s), with a landmark of more than 66.5 billion packets per second (BPPS) capacity. Supporting the latest NDR technology, NVIDIA Quantum-2 brings a high-speed, extremely low-latency and scalable solution that incorporates state-of-the-art technologies such as Remote Direct Memory Access (RDMA), adaptive routing, and NVIDIA Scalable Hierarchical Aggregation and Reduction Protocol (SHARP)™. Unlike any other networking solution, NVIDIA InfiniBand provides self-healing network capabilities, as well as quality of service (QoS), enhanced virtual lane (VL) mapping, and congestion control to provide the highest overall application throughput. As an ideal rack-mounted InfiniBand solution, the QM9701 NDR InfiniBand fixed-configuration switches allow maximum flexibility, as they enable a variety of topologies, including Fat Tree, SlimFly, DragonFly+, multi-dimensional Torus, and more. They’re also backwards compatible to previous generations and include expansive software ecosystem support.
SHARP3 Scalability
Today’s complex research demands ultra-fast processing of high-resolution simulations, extreme-size datasets, and complex, highly parallelized algorithms that need to exchange information in real time. The QM9701 NDR InfiniBand switches extend NVIDIA In-Network Computing technologies and introduce the third generation of NVIDIA SHARP technology, SHARPv3. Creating virtually unlimited scalability for large data aggregation through the data center network, participating in the application’s runtime and reducing the amount of data needed to traverse the network.
Port-Split for Double-Density NDR200
By implementing NVIDIA port-split technology, the QM9701 switches provide a double-density radix for 200Gb/s (NDR200) data speeds, reducing the cost of network design and network topologies. Supporting up to 128 ports of 200Gb/s, NVIDIA delivers the densest top-of-rack (TOR) switch available on the market. The QM9701 family of switches enables small to medium-sized deployments to scale with a two-level Fat Tree topology while reducing power, latency, and space requirements.
Managed Fabric with Built-In Subnet Control
The internally managed QM9700/QM9701 switches feature an on-board subnet manager that enables simple, out-of-the-box bringup for up to 2,000 nodes. Running the NVIDIA MLNX-OS® software package, the subnet manager delivers full chassis management through command-line interface (CLI), web-based user (WebUI), Simple Network Management Protocol (SNMP), or JavaScript Object Notation (JSON) interfaces. The externally managed QM9790 switch can utilize the advanced NVIDIA Unified Fabric Manager (UFM®) feature sets to empower data center operators to efficiently provision, monitor, manage, preventatively troubleshoot, and maintain the modern data center fabric, to realize higher utilization and reduce overall opex.
Busbar Power and Full-Capacity Switching
The QM9701-NS2R-0001 variant is a 48 VDC busbar-powered model specifically intended for DGX SuperPOD deployments and other high-density AI clusters. Power is delivered via a rear-mounted busbar connection, with internal DC-DC conversion circuitry handling regulation. There are no front or rear pluggable PSU modules in this version. The chassis includes 32 OSFP ports, each capable of 2×400 Gb/s NDR links via breakout, enabling 64 fully non-blocking NDR endpoints and a total switching capacity of 51.2 Tb/s.
Features
• 64× NDR (400Gb/s) InfiniBand ports via 32× OSFP interfaces (2×400Gb/s breakout).
• 51.2 Tb/s bidirectional switching capacity (non-blocking fabric).
• 66.5 Bpps packet processing rate.
• NVIDIA Quantum-2 architecture with SHARPv3 and hardware-accelerated RDMA.
• Port-split support: up to 128× NDR200 (200Gb/s) logical ports.
• 1U rackmount form factor with high-density port layout.
• Internal subnet manager for up to 2,000 nodes.
• Management interfaces: CLI, WebUI, SNMP, JSON.
• 48 VDC busbar power input (NS2R-0001 variant; no hot-swap PSU modules).
• Topology support: Fat Tree, DragonFly+, SlimFly, 3D Torus, more.
• MLNX-OS® firmware and UFM® compatibility (QM9790 for external management).
• Backwards compatible with HDR/EDR/FDR InfiniBand devices.
