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INFINIBAND / HIGH-PERFORMANCE NETWORKING

Build the fabric behind AI performance.

Architecture, sourcing, deployment and operational support for low-latency InfiniBand networks.

klimko.tech helps design and implement scalable compute fabrics for GPU clusters, HPC platforms and data-intensive infrastructure — from topology and port planning to optics, cabling, UFM and troubleshooting.

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CAPABILITIES

Engineering across the complete InfiniBand lifecycle.

From initial requirements and topology calculations to deployment, monitoring and incident support.

01

Architecture

Fabric design for AI and HPC environments.

  • Fat-tree and rail-optimized topology
  • Blocking and non-blocking design
  • Port-count and growth calculations
  • Compute and storage fabric separation
02

Hardware Selection

Compatibility-led selection of the complete connectivity stack.

  • Quantum switches
  • ConnectX adapters
  • OSFP and QSFP optics
  • DAC, AOC and fiber infrastructure
03

Deployment

Structured implementation planning and technical coordination.

  • Rack and port mapping
  • Cable schedules and labeling
  • Firmware alignment
  • Acceptance and link validation
04

Fabric Management

Operational visibility and control for scale-out environments.

  • UFM planning and deployment
  • Subnet Manager strategy
  • Telemetry and health monitoring
  • Routing and topology visibility
05

Performance

Optimization of GPU communication and collective operations.

  • GPUDirect RDMA readiness
  • NCCL communication-path review
  • Adaptive routing assessment
  • SHARP and in-network computing
06

Troubleshooting

Structured fault isolation for degraded or unstable fabrics.

  • Port and cable fault analysis
  • Congestion investigation
  • Firmware mismatch review
  • Performance bottleneck analysis

FABRIC ARCHITECTURE

Topology determines cluster efficiency.

GPU performance depends on predictable bandwidth, minimal oversubscription and correct placement of leaf, spine, storage and management layers.

We evaluate the workload, GPU count, network generation, cable distance, rack layout and future expansion requirements before defining the fabric.

Fat-tree design Rail optimization Twin-plane fabrics Non-blocking topology Storage fabric Expansion planning

HARDWARE STACK

Every link in the fabric matters.

Selection is based on generation, port speed, cable reach, rack density, compatibility and the expected scale of the cluster.

SWITCHING

Quantum Platforms

Quantum‑2 NDR and Quantum‑X800 XDR switching for current AI and HPC fabrics.

ADAPTERS

ConnectX

Host connectivity, RDMA acceleration and integration with modern GPU compute systems.

CONNECTIVITY

Optics & Cables

OSFP/QSFP transceivers, DAC, AOC, MPO/MTP and structured fiber planning.

MANAGEMENT

UFM

Fabric monitoring, topology visibility, operational management and troubleshooting workflows.

DEPLOYMENT PROCESS

From requirements to a validated fabric.

A structured deployment process reduces rework, cable errors and performance problems during cluster commissioning.

01

Requirements

GPU count, workload, rack layout, distance and growth targets.

02

Topology

Leaf, spine, rail and storage-fabric architecture.

03

BOM

Switches, adapters, optics, cables and management components.

04

Mapping

Rack elevations, port maps, cable matrix and labels.

05

Deployment

Installation coordination, firmware and fabric bring-up.

06

Validation

Link checks, topology review, counters and performance testing.

OPERATIONS & SUPPORT

Keep the fabric visible, stable and scalable.

Support can be delivered remotely, on site or through coordinated data center operations, subject to project scope and service agreement.

Operational Support

Ongoing assistance for monitoring, expansion and planned infrastructure changes.

  • Health review
  • Capacity planning
  • Firmware alignment
  • Topology updates
  • Expansion support
  • Documentation

Incident Response

Structured technical analysis for link failures, congestion and reduced cluster performance.

  • Port diagnostics
  • Cable isolation
  • Counter review
  • Congestion analysis
  • Routing review
  • Vendor coordination

DISCUSS YOUR PROJECT

Planning or expanding an InfiniBand fabric?

Share the GPU count, platform, target topology, deployment location and timeframe. We will help define the next technical steps.

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