Modernizing the core
A Strategic Guide to AAA Replacement
For decades, the Authentication, Authorization, and Accounting (AAA) server has been the silent workhorse of the telecom network. It is a mature market, and for many operators, the AAA strategy has long been “if it isn’t broken, don’t touch it.”
However, the definition of “broken” has changed. Your legacy AAA is processing requests as it should, but if it requires a month-long engineering project to launch a new data plan, or if it lacks the elasticity to handle sudden spikes in authentication requests, it is failing your business.
As operators move toward 5G, virtualization, and edge computing, the rigid, hardware-centric AAA appliances of the past are becoming liabilities. The new standard is Cloud-Native Functions (CNF), automated Continuous Integration/Continuous Delivery (CI/CD) pipelines, and flexible business logic.
This paper outlines the critical considerations for replacing a legacy AAA server, drawing on Enea’s lessons learned from real-world migrations at Tier-1 operators globally. It provides a roadmap for moving from “black box” legacy systems to a future-proof, transparent, and agile AAA function.
Contents
- Executive Summary: The AAA Migration Mandate
- Sign Your Current AAA is Holding You Back
- Key Technical Considerations for the Replacement
- Operational and Strategic Imperatives
- The Migration Journey and Strategy
- Conclusion: The Evaluator’s Checklist
- Enea AAA Server – Migration Case Studies
