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High performance InfiniBand switch for HPC workloads.
834977-B22
Mellanox IB EDR v2 36p RAF Switch
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834977-B22
- Description:
- Mellanox IB EDR v2 36p RAF Switch
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834977-B22 Overview
834977-B22 is a high-performance network switch built on a robust, modular architecture that delivers exceptional scalability and reliability for modern data environments. Engineered with advanced stacking capabilities, it supports a combination of AC power and redundant power supply options, ensuring continuous operation even during power fluctuations.
Designed for enterprise-grade deployments, the 834977-B22 provides versatile port configurations including multiple Ethernet and SFP uplink ports for both copper and fiber connectivity. Its high throughput and optimized switching performance make it ideal for mission-critical applications, data centers, and campus networks where scalability and robust connectivity are paramount.
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834977-B22 Specifications
- Product Type
- Switch
- Power Source
- Redundant Power Supply / AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 75 W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Combo
- Redundant Power Supply Supported
- Yes
- Manufacturer Part Number
- 834977-B22
- Uplink Configuration
- 10G
- IOS
- IP Services
- POE Support
- POE+
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- 24 Ethernet ports with 4 SFP uplink slots
- Flash Memory
- 64 MB
- Switching Capacity
- 128 Gbps
- Switching Capacity with Stacking
- 256 Gbps
- Product Name
- 834977-B22 Stackable Gigabit Ethernet Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 12 inches
- Weight
- 15 lbs
834977-B22 Use Case
High-Performance Computing Cluster Interconnect
In a national research center deploying a 512-node HPC cluster, the 834977-B22 Mellanox IB EDR v2 36p RAF Switch delivers 100 Gb/s RDMA and sub-700 ns latency for MPI workloads. This low-latency fabric reduces job completion times by up to 30 %, enables linear scalability across thousands of CPU cores, and maximizes utilization of simulation and modeling applications.
Distributed AI/ML Training Acceleration
In an enterprise GPU farm running large-scale deep learning frameworks, the 834977-B22 Mellanox IB EDR v2 36p RAF Switch interconnects 64 NVIDIA DGX servers via GPUDirect RDMA. By providing lossless 100 Gb/s throughput and ultra-low latency, it accelerates gradient synchronization, cuts epoch times by 50 %, and achieves near-linear scaling across multi-node training clusters.
NVMe-over-Fabrics Storage Consolidation
In a financial services data center centralizing SSD arrays, the 834977-B22 Mellanox IB EDR v2 36p RAF Switch enables NVMe-over-Fabrics over InfiniBand with 100 Gb/s connectivity. This architecture delivers sub-millisecond I/O latency, triples storage throughput, simplifies high-availability configurations, and lowers TCO by consolidating silos into a unified, software-defined storage fabric.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 834977-B22 |  AW575B |  834978-B22 |  Q9D34A |  657787-B21 | |
|---|---|---|---|---|---|
| Depth | 12 inches | 14 inches | 18 inches | 18 inches | 12 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 256 MB | 256 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1 inches | 1 inch | 1.75 inches |
| IOS | IP Services | IP Services | IP Services | IP Services | LAN Lite |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 3 | Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | 834977-B22 | AW575B | 834978-B22 | Q9D34A | 657787-B21 |
| Media Type Supported | Combo | Twisted Pair / Fiber / Combo | Combo | Twisted Pair / Fiber / Combo | Combo |
| Memory | 256 MB | 256 MB | 512 MB | 512 MB | 256 MB |
| Number of Downlink Ports | 24 Ports | 24 Ports | 24 Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | POE+ | POE+ | POE+ | POE+ | POE |
| Port/Expansion Slot Details | 24 Ethernet ports with 4 SFP uplink slots | 2 expansion slots for additional modules | 2 expansion slots | 2 expansion slots for stacking modules | 4 expansion slots available for stacking modules |
| Power Consumption | 75 W | 120 W | N/A | 250W | 120W |
| Power Source | Redundant Power Supply / AC Power Supply | Dual AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply with Redundant Option |
| Product Name | 834977-B22 Stackable Gigabit Ethernet Switch | AW575B Advanced Modular Switch | 834978-B22 High-Performance Enterprise Switch | Q9D34A UltraScale Network Switch | 657787-B21 Next-Gen Network Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | Yes | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 128 Gbps | 128 Gbps | 128 Gbps | 640 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 256 Gbps | 256 Gbps | 256 Gbps | 1,280 Gbps | 256 Gbps |
| Uplink Configuration | 10G | 10G | 10G | 10G | 10G |
| Weight | 15 lbs | 15 lbs | 10 lbs | 20 lbs | 15 lbs |
| Width | 17.5 inches | 19 inches | 17.5 inches | 17 inches | 17.5 inches |
Reviews & Ratings
N
Nathan Brooks
4
Low latency and stable operation.
S
Scott Palmer
5
Handled compute traffic efficiently.
G
George Lane
3
Reliable for clustered environments.
L
Leonard Shaw
4
Solid performance under sustained load.
Questions & Answers
What is the Mellanox IB EDR v2 36p RAF Switch (SKU: 834977-B22)?
The Mellanox IB EDR v2 36p RAF Switch (834977-B22) is a high-performance 36-port InfiniBand EDR chassis designed for data center and HPC environments, delivering up to 100 Gb/s per port with low latency and full redundancy.
How many ports and what speeds does the 834977-B22 switch support?
The 834977-B22 switch features 36 full-width InfiniBand EDR ports, each supporting up to 100 Gb/s of bi-directional throughput, for a total non-blocking bandwidth of 7.2 Tb/s.
What is InfiniBand EDR technology?
InfiniBand EDR (Enhanced Data Rate) is a high-speed interconnect offering 100 Gb/s per port, ultra-low latency (sub-600 ns), and advanced RDMA capabilities for HPC, AI/ML, and data center applications.
Which applications are best suited for this switch?
This switch excels in HPC clusters, AI/ML training, data analytics, virtualization, and storage fabrics that require ultra-low latency, high throughput, and scalable RDMA performance.