4 Network Functions Virtualization (NFV)
4.1 What has enabled NFV?

If it is possible to build networks in a manner that represents technology NFV, the question logically arises why the network, from the very beginning of its establishment, is using proprietary hardware. The answer is that the industry-standard servers with the operating system and software have only recently acquired high performance to be able to effectively compete with proprietary devices, particularly in terms of prices, electricity consumption and reliability.

We can specify “Recently” time as the last four to five years. During this period, we have witnessed a dramatic improvement in network throughput and packet processing throughput of x86 processors as well as rapidly increasing the number of processor cores available on a single physical device industrial server.