Technology Spotlight: Advancing data centre interconnection

AI infrastructure is reshaping how organisations think about optical networking. The massive buildout of artificial intelligence training and inference systems is driving unprecedented fibre density within and between data centre campuses. Hyperscalers are no longer content with traditional approaches to cabling architecture, connectivity design, and fibre management. As organisations scale GPU clusters across geographically distributed facilities, they are discovering that infrastructure designed for incremental growth cannot support the compressed timelines and extreme density requirements of AI deployment.

This is not merely a capacity problem; it is a fundamental reimagining of how optical infrastructure must be architected, deployed, and validated. The physical constraints of data centre campuses, the complexity of managing tens of thousands of fibres simultaneously, and the unforgiving economics of AI training failures have created entirely new engineering challenges. For the first time in optical networking history, deployment velocity is as critical as technical performance, and first-pass reliability has become non-negotiable.

In this special Technology Spotlight eBook, we bring together leading industry voices from Nokia, US Conec, and VIAVI Solutions to explore how the sector is confronting these challenges through innovation in cabling architecture, connector design, fibre management, and testing methodology.

Who should read Advancing  data centre  interconnection?

This eBook is essential reading for:

• Data centre architects and hyperscalers planning next-generation scale-across architectures spanning multiple campus facilities.
• Network engineers transitioning from traditional IMDD approaches toward higher-capacity coherent solutions who need practical guidance on technology selection and deployment strategy.
• Structured cabling specialists designing campus fibre infrastructure who need to understand emerging best practices for managing ultra-high-fibre-count cables and pre-terminated deployment approaches.
• Test and measurement professionals discovering how metrology and validation must evolve to support the simultaneous ramp of multiple transceiver technologies and fibre types.
• Infrastructure operators and system integrators delivering solutions to hyperscalers who need to understand customer deployment challenges and the approaches leading organisations are adopting.

Why do I need to download Advancing data centre interconnection?

As AI infrastructure outstrips the physical capacity of single locations, organisations are shifting toward scale-across models. These models require purpose-built cabling strategies, advanced connector designs, and validation approaches that traditional data centre infrastructure simply cannot support. The sheer fibre density being deployed today, with some campuses now planning for million-fibre deployments, demands fundamentally different thinking about organisation, identification, splicing, and termination.

Understanding these structural shifts is vital for maintaining economic and practical viability in a market where time to deployment has become as critical as total cost of ownership. Organisations that fail to adopt high-density pre-terminated approaches risk massive project delays. Those that deploy without comprehensive testing risk discovering integration failures only after expensive GPU time has been wasted.

This document provides the technical depth, practical case studies, and strategic context needed to navigate rapid engineering timelines and avoid the high cost of failure in AI training clusters.

What will I learn about AI and data centre interconnect (DCI)

By downloading this Technology Spotlight, you will discover:

• Scale-across networking principles: How distributed GPU clusters can span multiple facilities and power grids while maintaining low-latency, high-reliability connectivity.
• High-density cabling evolution: Practical implications of moving from hundreds to thousands of fibres per cable, and how management strategies must evolve to eliminate deployment bottlenecks.
• The connector revolution: How innovations such as Very Small Form Factor (VSFF) and Very High-Density (VHD) multi-fibre connectors enable faster deployments in space-constrained facilities.
• Pre-terminated cabling strategies: Methods to dramatically reduce field splicing requirements, lower labour costs, and improve deployment speed and reliability.
• Advanced testing and validation: How hyperscalers are moving from reactive troubleshooting to preventive monitoring and continuous validation across multiple transceiver technologies and fibre types.
• Economic risk mitigation: How to protect AI training cluster investments where downtime is measured in wasted GPU computation time rather than mere hours of outage.