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Network Function Virtualization by Thomas D. Nadeau, Ken Gray

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Chapter 1

Network Function Virtualization

Abstract

In this chapter, we define what Network Function Virtualization is in our view. We also take the time to discuss what its key components are and more importantly, are not.

Keywords

Network function virtualization; NFV; COTS; service function chaining; SFC

Introduction

Arguably, Network Function Virtualization (NFV) builds on some of the basic and now salient concepts of SDN. These include control/data plane separation, logical centralization, controllers, network virtualization (logical overlays), application awareness, application intent control, and the trend of running all of these on commodity (Commercial Off-The-Shelf (COTS)) hardware platforms. NFV expands these concepts with new methods in support ...

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