Multi-Access Edge Computing (MEC) is a promising paradigm that brings computational capabilities closer to end-users, enabling low-latency and high-bandwidth applications. The federation of multiple MEC platforms has the potential to create a collaborative ecosystem, facilitating resource sharing and scalability. This paper addresses the benefits of exploring the synergies between Software-Defined Networking (SDN) and MEC federation deployments, aiming to enhance the network infrastructure's overall performance, flexibility, and responsiveness. More concretely, this work explores the integration of MEC and SDN to address performance and resource utilization challenges in congested federated MEC environments, enabling seamless service migration between MEC nodes when resource constraints arise with results showing its ability to maintain service quality under congestion.