Software-defined network (SDN) and network function virtualization (NFV) are two technology trends that have revolutionized network management, particularly in highly distributed networks that are used in public, private, or hybrid cloud services. SDN and NFV technologies, when combined, simplify the deployment of network resources, lower capital and operating expenses, and offer greater network flexibility. The increasing usage of NFV is one of the primary factors that make SDN adoption attractive. The integration of these two technologies; SDN and NFV, offer a complementary service, with NFV delivering many of the real services controlled in an SDN. While SDN is focused on the control plane, NFV optimizes the actual network services that manage the data flows. Devices such as routers, firewalls, and VPN terminators are replaced with virtual devices that run on commodity hardware in NFV physical networking. This resembles the 'as-a-service' typical model of cloud services in many aspects. These virtual devices can be accessed on-demand by communication, network, or data center providers.

This book illustrates the fundamentals and evolution of SDN and NFV and highlights how these two technologies can be integrated to solve traditional networking problems. In addition, it will focus on the utilization of SDN and NFV to enhance network security, which will open ways to integrate them with current technologies such as IoT, edge computing and blockchain, SDN-based network programmability, and current network orchestration technologies. The basics of SDN and NFV and associated issues, challenges, technological advancements along with advantages and risks of shifting networking paradigm towards SDN are also discussed. Detailed exercises within the book and corresponding solutions are available online as accompanying supplementary material.

Contents:

• Elements of Modern Networking


• Introduction to Networking Concepts


• SDN and NFV: Introduction, History, and Evolution


• SDN Basic Architecture


• SDN Controllers


• The OpenFlow Switch


• SDN Application Plane


• Network Function Virtualisation


• SDN Security and Challenges


• SDN and NFV with Other Technologies

Readership: Graduate- and postgraduate-level students in Robotics and Automated Systems, Networking, Software Engineering and Digital Security, Innovation, Technology, Knowledge and Information Management.

Key Features:

• This book covers the preliminaries of SDN and its associated issues, challenges and technological advancements


• This book focuses on the security perspective of SDN i.e., how SDN can be utilized to enhance security in the network


• This book presents the integration of SDN with current technologies such as IoT, edge computing, blockchain, etc.


• This book also discusses the advantages and pitfalls of shifting networking paradigm towards SDN


• This book puts together SDN based network programmability and current network orchestration technologies