A business case of NFV includes by default all the benefits coming up within virtualization. Virtualization improves the cost spent on different hardware types by unify infrastructure layer and separates applications and OS layer form hardware layer. This change have bring a lot of saving to CAPEX and also to OPEX area. Today, most of IT applications ,and even mission critical application, are running on top of virtualization platforms. Operators have already started a stage of application migration and database consolidation to run on virtualization environment. A lot of saving was observed from license model, hardware utilization, and no more skills are needed to manage these different kinds of servers and storage systems. A single type of support contract and process was applied for a common layer of infrastructure and virtualization. Investment for converged platforms of back up, security, load balancers,network was done and ...