GPU cluster and AI fabric
Map leaf, spine, NIC and accelerator-facing ports before choosing 400G or 800G OSFP, QSFP-DD, AOC or DAC. Record lane mode, breakout, firmware, FEC and adjacent-port thermal loading.
AI data center interconnectOptical interconnect solutions
Optical network solutions organized by topology, link role and sourcing path for high-speed optical interconnect projects.
ProjectEvidenceSupport
AI Data Center Interconnect >
GPU cluster fabrics, leaf-spine links and high-density 400G/800G optical paths.
HPC Cluster Networking >
Low-latency cluster links where reach, FEC, thermal and switch firmware must be reviewed.
DCI Edge Interconnect >
Data-center interconnect and metro edge links with LR/ER optical evidence requirements.
Cloud Switch Upgrade >
Upgrade paths from 100G/200G to 400G/800G with host compatibility and migration risk notes.
Enterprise Core Network >
Enterprise aggregation and core switching links with procurement-ready documentation.
ISP Transport And Access >
ISP access, aggregation and transport optical links with route and certificate boundaries.
Storage Fabric Connectivity >
Storage and backup network optics where latency, compatibility and support lifecycle matter.
Lab Validation Bench >
Sample validation benches for BER, DOM/DDM, thermal, EEPROM and firmware review.
ARCHITECTURE FIRST
Choose an optical interconnect solution by topology, host and evidence.
High-performance optical connectivity is not one product class. GPU training fabrics, rack links, parallel-fiber trunks and DCI routes place different constraints on latency, reach, connector count, power, thermal headroom, FEC and serviceability. Start with the named endpoints and physical route, then shortlist the optical transceiver, AOC, DAC or MTP/MPO system.
Low-latency rack and row links
Compare DAC and AOC by supported length, gauge or bend route, power, airflow and host coding. Latency alone does not decide whether copper or active optical cable is the safer operational fit.
AOC vs DAC guideParallel optical interface
For DR, SR and breakout architectures, align lane count, MTP/MPO connector, polarity, fiber grade, inspection and end-to-end insertion loss before approving the cabling schedule.
MTP/MPO polarity guideDCI and routed optical links
For duplex FR4, LR4 and longer routes, confirm the exact PMD, standardized reach, transmitter and receiver limits, channel loss and engineering margin instead of selecting by distance label alone.
400G FR4 vs LR4REQUIREMENT MAP
Turn a broad optical connectivity request into a reviewable shortlist.
Each solution route below links the search intent to the minimum engineering inputs and a current catalog path. Product selection remains conditional until the exact host, port, software and evidence are reviewed.
| Buyer need | Minimum inputs | Relevant route |
|---|---|---|
| High-bandwidth AI or HPC interconnect | Topology, endpoint, port speed, lane map, FEC, reach and thermal envelope | 800G OSFP families |
| Short rack-level switch-to-server link | Host coding, length, gauge or bend radius, power and airflow | DAC cable systems |
| 400G duplex optical uplink | PMD, reach, connector, channel loss, FEC and platform support | 400G QSFP-DD families |
| Dense parallel-fiber distribution | Lane count, MTP/MPO interface, polarity, fiber grade, inspection and loss budget | MTP/MPO fiber systems |
Evidence boundary: these routes organize engineering and sourcing questions; they do not guarantee compatibility, availability or performance for an unnamed host. Use the compatibility checklist and a model-specific sample plan before procurement approval.
APPROVAL RECORD
Keep the design decision auditable from port map to accepted sample.
A useful solution record identifies what is being connected, which evidence controlled the shortlist and what changed during validation. This prevents a marketing name such as “400G,” “800G” or “NDR” from replacing the endpoint, lane, software and route details that determine whether a link can be approved.
| Record | What to capture | Why it matters |
|---|---|---|
| Endpoint and port map | Source and destination device, line card or adapter, physical port, configured speed and breakout | Separates the named topology from assumptions based on form factor alone |
| Physical route | Measured path, patch points, connector and fiber type, ordered length, bend and service-loop constraints | Turns a nominal reach into a reviewable cabling and loss path |
| Platform evidence | Host software or firmware, support-matrix revision, candidate part number, coding and known restrictions | Keeps compatibility language tied to a dated platform context |
| Acceptance result | Link state, negotiated mode, FEC and error counters, telemetry, temperature, restart recovery and sample revision | Makes approval repeatable without claiming universal compatibility |
Primary planning references
These first-party documents illustrate the evidence categories above. They define workflows or interfaces within their stated scope; they do not qualify a PhotonVerge product for an unnamed host.
- NVIDIA DGX SuperPOD: Document Network Connectivity — port-to-port mapping, cable attributes, labels and bill-of-material records for the documented design.
- NVIDIA DGX SuperPOD: NDR Connections — endpoint and connection examples for the guide's NDR architecture.
- Cisco Optics-to-Device Compatibility Matrix User Manual — the host, device and transceiver fields used in Cisco's official lookup workflow.
- OSFP MSA Module Specification Rev. 5.22 — the module interface and implementation terminology used when reviewing an OSFP host path.