Software defined networking and network functions virtualization technologies

Abstract

The intersection of virtualization, cloud computing, software-defined networking (SDN) and Network Functions Virtualization (NFV) represents a profound shift in how modern networks are architected, managed and optimized. These technologies break free from the strict boundaries of hardware-centric models, turning the digital ecosystem toward agile, scalable and software-driven infrastructures. This thesis explores these technologies, and its main goal is to help readers understand how they work, which are the components they consist of, and which are their advantages in today’s demanding IT world. More emphasis will be given to SDN and NFV, which, when harmonized within virtualized cloud infrastructures, unlock new dimensions of network automation, agility and operational efficiency. This study highlights their critical role in shaping the next generation of fully programmable, software-centric networks, leading the way to a more connected and responsive digital future.