GNM has published its 2025 Annual Infrastructure Report, outlining a year of coordinated backbone expansion, IX ecosystem growth and high-capacity platform scaling across Europe and Singapore.

In 2025, the focus was not on isolated upgrades, but on strengthening the platform as one interconnection environment - where transport, peering and IP services develop on a unified optical foundation.

Backbone expansion as the growth driver

Infrastructure development remained focused on investment in the optical layer.

The DWDM backbone expanded to 21,500+ km, increasing regional reach and strengthening capacity routes between major European hubs and Singapore.

Backbone capacity was upgraded from 1.8 Tbps to 2.2 Tbps per direction. This was supported by amplifier reconfiguration and spectrum optimisation, enabling higher per-lambda performance and improved stability under heavy traffic load.

This optical-first scaling model ensures that IP and peering growth are supported by pre-provisioned transport capacity, rather than reactive upgrades.

Interconnection density built on transport scale

As backbone capacity expanded, the interconnection ecosystem scaled alongside it.

The platform now spans 87 Points of Presence across 20+ countries, integrating both GNM-operated and partner-connected facilities into one service environment.

This unified architecture allows networks to access transport, IP transit and peering services through the same infrastructure layer. It reduces deployment complexity and speeds up service activation.

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IX ecosystem and traffic evolution

The GNM-IX platform continued to grow in both scale and traffic volume.

700+ connected ASNs;
Top-5 Euro-IX platform by connected networks;
10.5+ Tbps peak traffic.

Content and cloud networks account for approximately 75% of total traffic, reinforcing the platform’s role as a high-capacity content interconnection environment.

This growth is supported by ongoing backbone and switching investments, ensuring low-latency routing and stable traffic handling capacity.

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Port capacity and switching scale

To support rising interconnection demand, high-capacity port deployment accelerated:

+37% growth in 100G ports;
+122% growth in 400G ports;
413.5 Tbps total switching capacity.

The rapid adoption of 400G infrastructure reflects growing customer demand for large-scale transport and IX connectivity, particularly from hyperscalers and CDN platforms.

Resilience and operational maturity

Platform expansion was matched by investment in automation and protection.

Key developments included:

Automated DWDM protection and revert;
Faster failover and service restoration;
Spectrum restructuring for protected services.

These upgrades improve backbone resilience and ensure service continuity in high-load routing environments.

Platform readiness for 2026

Together, these infrastructure developments position GNM for continued hyperscale traffic growth, deeper ecosystem integration and further geographic expansion.

The evolution of the platform would not be possible without the networks connected to it. We thank our customers and partners for their continued trust and collaboration throughout 2025.

This shared growth reflects the strength of an ecosystem built collectively, spanning network operators, content platforms and data centre partners across regions.

By scaling optical capacity ahead of demand and integrating transport and interconnection within one platform architecture, GNM enters 2026 with significant capacity headroom and deployment flexibility.

Click to see full GNM Annual Report 2025

GNM Annual Report 2025: Inside a Year of Network Growth