software-defined networks support dynamic and scalable computing. The dynamic behavior is achieved by decoupling Downloaded 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 or disassociating the system. The swing of control from tightly bound individual networks to assessable computing devices enables infrastructure abstraction. Due to the abstraction, the network can be considered as a logical or virtual entity. In this chapter, relation between network function virtualization (NFV) and software-defined networking (SDN) has been outlined. This chapter focuses on describing the pros and cons of NFV technologies. network functions virtualization (NFV) was founded under the work of the European Telecommunications Standards Institute (ETSI). Chapter 3 Introduction to Open Flow Mohit Kumar Jaiswal, University of Petroleum and Energy Studies, India The SDN controller is interfaced with the hardware of the network (i.e., with switches and routers) using OpenFlow. Basically, OpenFlow is an open interface used for configuring the forwarding tables of network switch according to the desired path derived by the SDN controller. OpenFlow enables more innovation in controller platforms and applications, and describes a solution for each frame or packet flow. OpenFlow is based on an ethernet switch with an internal flow-table and a standardized interface to add and remove flow entries of forwarding table of the system. The control mechanism from each one of the switch and router up to SDN controller are encrypted with the transport layer security (TLS) and secure socket layer (SSL) OpenFlow protocols to provide the additional security inside the network. Chapter 4 SDN Controller Sujitha S., Thiagarajar College of Engineering, India Manikandan M. S. K., Thiagarajar College of Engineering, India Ashwini G., Thiagarajar College of Engineering, India Designing and organizing networks has become extra innovative over the past few years with the assistance of SDN (software-defined networking). The software 