IP Address: 137.52.76.29 Introduction to SDN and NFV take accordingly. As in a monitoring application a rule can be set SO that if the link utilization exceeds a certain value the traffic can be redirected using automated rules. Flow Programming: SDN provides the network managers an interface where they can configure, manage, secure and optimize network resources with easy and efficiency with the help of automated SDN program with a dashboard. Higher Rate of Innovation: SDN is evolved as concept of open protocols. The Northbound API provides a programming interface which allows application to be developed and new functionalities are added in the networks. The Open flow protocols provides an open box concept, source is in public domain and open for research and development. Reduced Overall Network CAPEX and OPEX: It works on simplified switch SO it reduces the hardware cost involved in the development of the network infrastructure. Virtualization and automation reduces the cost of maintenance. Increased Network Reliability: The centralized management interface contains all the network information such as topology, devices and links. So if any part of the network malfunctions the necessary action can be taken rapidly such as rerouting or blocking. As compared to current network with distributed control plane error information takes lot of time to propagate through the network SO SDN networks are considered more reliable. SDN Architecture The inflexibility of the traditional network is due to the tightly coupling of control plane and data plane. These inflexibilities of traditional network hides the adaptation Figure 2. Features of Software defined networks Applications User Needs & Service Management Requirements & Control Orchestration Abstraction Automation Virtualization Recursion Management Network State & Control Resources Downloaded 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 Introduction to SDN and NFV of changing network infrastructure needs. The network infrastructure compone