From legacy complexity to automated reliability | Lessons from Nokia’s global data center network migration

Nokia IT transformed decades of complex, multi-vendor legacy data center networks into a streamlined, automated fabric delivering unprecedented operational reliability. This executive summary shares key lessons from a real-world brownfield migration, including intent-driven automation, digital twins and a unified architecture that reduced incidents by 80%, eliminated change-induced downtime and shifted the IT team from firefighting to proactive innovation. Gain critical insights to build a scalable, future-ready network foundation that supports continuous improvement and enables next-generation capabilities like AI-driven operations and hybrid connectivity.