In the telecommunication sector products are designed to build around specialist hardware and software in order to offer maximum reliability. Network function virtualization is about separating network functions from proprietary hardware and then consolidating, and running those functions as virtualized applications on a server. NFV focuses on virtualizing network functions such as firewalls, WAN acceleration, message routers, message border controllers (used in VoiP networks), content delivery networks (CDNs) and other specialized network applications. Network function virtualization allows network tasks to be performed by software running on commodity hardware, replacing expensive, dedicated hardware appliances. Increased adaptation of SDN (Software-defined networking) and reduction in CAPEX and OPEX are the key factors driving the growth of NFV Infrastructure (NFVI) market. NFV Infrastructure (NFVI) market is one of the significantly increasing market because of increasing demand from telecom sector. Telecom services providers use NFV Infrastructure (NFVI) to compute, in storage, and networking resources that can be used to build virtualized network functions.