RT Journal Article T1 A software-defined networking solution for interconnecting network functions in service-based architectures A1 Fondo Ferreiro, Pablo A1 Gil Castiñeira, Felipe Jose A1 González Castaño, Francisco Javier A1 Candal Ventureira, David K1 3325 Tecnología de las Telecomunicaciones AB Mobile core networks handle critical control functions for delivering services in modern cellular networks. Traditional point-to-point architectures, where network functions are directly connected through standardized interfaces, are being substituted by service-based architectures (SBAs), where core functionalities are finer-grained microservices decoupled from the underlying infrastructure. In this way, network functions and services can be distributed, with scaling and fail-over mechanisms, and can be dynamically deployed, updated, or removed to support slicing. A myriad of network functions can be deployed or removed according to traffic flows, thereby increasing the complexity of connection management. In this context, 3GPP Release 16 defines the service communication proxy (SCP) as a unified communication interface for a set of network functions. In this paper, we propose a novel software-defined networking (SDN)-based solution with the same role for a service mesh architecture where network functions can be deployed anywhere in the infrastructure. We demonstrated its efficiency in comparison with alternative architectures. PB IEEE Access SN 21693536 YR 2022 FD 2022-02-26 LK http://hdl.handle.net/11093/4575 UL http://hdl.handle.net/11093/4575 LA eng NO IEEE Access, 10, 19905-19916 (2022) NO La Caixa Foundation | Ref. LCF/BQ/ES18/11670020 DS Investigo RD 07-oct-2024