800G XDR Connectivity
High-throughput interconnects for intensive GPU-to-GPU traffic.
InfiniBand XDR Fabric for B300 AI Clusters
Build a high-bandwidth, low-latency, and scalable network for B300 AI clusters with InfiniBand XDR.
Start Your B300 Fabric DesignShare your B300 cluster size, target topology, and deployment requirements.
XDR FABRIC OVERVIEW
InfiniBand XDR for B300 AI Clusters
B300 GPU compute nodes, XDR switching, and matched 800G interconnects form an InfiniBand fabric for distributed AI workloads.
Adaptive Routing & Congestion Control
Balances traffic across available fabric paths and helps contain congestion hotspots.
SHARP In-Network Computing
Accelerates supported collective operations within the network, reducing communication overhead between GPUs.
B300 InfiniBand XDR Solution Architecture
A compute network architecture for B300 GPU clusters.
Cluster and Fabric Scale
- B300 GPU Servers
- 1,296servers
- 800Gb/s NICs
- 10,368800Gb/s NICs
- Leaf Switches
- 144switches
- Spine Switches
- 72switches
Optical Interconnect
- 800G Optical Transceivers
- 10,368800G modules
- 1.6T Optical Transceivers
- 15,5521.6T modules
- Optical Fiber Patch Cords
- 20,736patch cords
XDR Link Design
01 / Server–Leaf Link
- Protocol
- InfiniBand XDR
- Link Rate
- 1.6T To 2x 800G
- Media
- Single-Mode MTP/MPO Fiber
02 / Leaf–Spine Link
- Protocol
- InfiniBand XDR
- Link Rate
- 1.6T To 1.6T
- Media
- Single-Mode MTP/MPO Fiber
Related Products
Components for the B300 InfiniBand XDR fabric.
InfiniBand XDR Switches
- 144 × 800G XDR Ports
- 72 OSFP Cages
- Q3400-RA · 4U Air-Cooled
InfiniBand XDR Adapters
- 800G InfiniBand XDR
- ConnectX-8 Host Adapter
- OSFP Interface
InfiniBand XDR Transceivers
- OSFP224 Form Factor
- Up to 1.6T
- MTP/MPO-12 APC
InfiniBand XDR ACC Cables
- 1.6T OSFP224 Active Copper
- 1–2.5m Custom Lengths
- Power Consumption ≤ 0.1W
MTP/MPO Fiber Patch Cords
- 1–500m Custom Lengths
- Low Insertion Loss
- MTP/MPO-12 APC
WHY AICPLIGHT
AICPLIGHT Solution Support
Solution design, validated products, and dedicated project support.
Free Solution Design
A tailored solution architecture and matched product plan based on your requirements, site conditions, and deployment goals.
Tested Products for Deployment
Demo testing can be arranged for project validation when required. All optical transceivers and fiber patch cords undergo 100% inspection before shipment.
Single Point of Contact
A dedicated AICPLIGHT contact supports the project from requirement review through delivery and ongoing maintenance.
FAQ
01What information is needed to design an XDR fabric?
To design the fabric, we need the number of servers, the installed InfiniBand adapter configuration, and the target oversubscription ratio. AICPLIGHT uses this information to determine Leaf and Spine port capacity, interconnect media, and cabling.
02How are the Server–Leaf and Leaf–Spine links specified?
The media for Server–Leaf and Leaf–Spine links is selected according to the port speed, port form factor, and required reach at both ends of the connection. These requirements determine the appropriate optical transceivers and fiber patch cords for each link.
03When should I use ACC, and when should I use optical transceivers with MTP/MPO patch cords?
ACC is suited to low-latency, short-reach connections within a rack or between adjacent racks. For longer reaches or fiber-based cabling, optical transceivers can be paired with MTP/MPO patch cords.
04What does AICPLIGHT provide for an XDR fabric project?
After confirming the server configuration and network requirements, AICPLIGHT can provide a network topology, device and interconnect recommendations, link-media and cabling planning, and a project product list.
05How are components tested and shipped before delivery?
Demo testing can be arranged for project validation when required. All optical transceivers and fiber patch cords undergo 100% inspection before shipment. NVIDIA InfiniBand switches and NICs are shipped in their original factory packaging with the anti-counterfeit seals intact.
CUSTOMER SUCCESS
Related AI Fabric Case Study
RELATED AI FABRIC CASE STUDY
Turnkey 128× B200 AI Platform for Fin-LLM Training
AICPLIGHT designed and delivered a 128-GPU NVIDIA B200 platform for a global financial services leader, including a Quantum-2 InfiniBand NDR computing fabric, optimized storage network, UFM management, and validated 800G/400G optical interconnects.
START YOUR PROJECT
Start Your Network Solution Design
Share your application, existing environment, and deployment requirements. AICPLIGHT will help assess the architecture and recommend suitable products.
We typically respond within 4 business hours.