. NFV allows network elements and VNFs from multiple vendors interoperate and co-exist through API and open interfaces (i.e., Open Flow). Global scope and cross-administration of NFV: Connectivity distributing over multiple administration dominions and geographies is imperative. Acceleration in innovation: The demands of NFV require a substantial complex forwarding plane, combining virtual and physical applications in cooperation with extensive control and application software; on the contrary, SDN lay down on the principles which are based on Open Flow as the cornerstone and tend to change the control plane to be software-centric, programmable and open which is an ideal foundation for innovation in SDN. MODEL ARCHITECTURAL FRAMEWORK FOR NFV Model Architectural Framework of Network Function Virtualization The architectural framework of NFV is organized into three layers and these are Virtualized network function (VNF), Network Function Virtualization Infrastructure (NFVI), and Network Functions Virtualization Management and Orchestration Architectural Framework (NFV-MANO). Downloaded 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 Virtualizing Network Functions in Software-Defined Networks Figure 2. Demonstration of Network Function Virtualization Intersection Network Function Virtualization VM Orchestration COTS Compute Evolution SDN Controller Development Figure 3. NFV Networking Requirements Central Office PoP Router Application on Virtual Machines @@@@@@@@ Access Private IP services Open Flow Switch Public IP services Control Plane Carrier Ethernet demarcation device Data Plane Enterprise Virtualized Network Function (VNF) The VNF can be considered equivalent to the accelerator, which is responsible for implementation and handling of profound network functions that are developed on the Network function virtualization infrastructure. They act as an aid in delivering full-scale networking communication services. Downloaded: 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: