Multi-Access Edge Computing (MEC) brings com
putational resources closer to end-users, enabling applications to deliver lower latencies and higher Quality of Service (QoS). However, as users roam across multiple domains, maintaining uninterrupted service and low latencies becomes difficult, especially when individual MEC systems experience resource overload. To address these limitations, MEC Federation (MECF) enables seamless interoperability among distinct domains, or MEC systems, regardless of their underlying specifics by using a common reference point. Subsequently, MECF facilitates
application migration and resource sharing. In this paper, we analyze existing works and standards on MECF and propose a complete end-to-end framework for managing MECF between operators. This framework supports application migration, inter
MEC resource sharing, and the orchestration of these actions within individual MEC systems. Our evaluations demonstrate that the proposed framework supports efficient, secure, and scalable MECF operations, supporting the deployment of diverse use cases in multi-operator environments.