Recent Technologies

NFV and SDN are two important concepts for today’s and future network. So, why are they used together? To understand this, let’s firtly look at their main benefits. SDN (Sotware-Defined 
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Network Functions Virtualization (NFV) system consists of three key Infrastructure elements. These elements are: • NFVI (Network Functions Virtualization Infrastructure) • VNFs (Virtual Network Functions) • MANO (Management and Orchestration) 
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Basically, Network Function Virtualization (NFV) is a network concept that replaces specialized hardwares (routers, firewalls, load balancers etc) used in classical network architecture with softwares running on servers that does 
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Open Flow Control Messages are based on TCP. To set up Open Flow communication, Open Flow Controller listens TCP ports 6633/6653. There are five main parts in Open Flow Messages. 
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There are two main components used with Open Flow. These are: • Open Flow Switches • Open Flow Controllers Open Flow Switches Open Flow provide the seperation of Control Plane 
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