NFV and SDN: What’s the Difference?

Article Published by: SDXCentral
Author: Prayson Pate
Source URL: https://www.sdxcentral.com/articles/contributed/nfv-and-sdn-whats-the-difference/2013/03/

Software-defined networking (SDN) and network function virtualization (NFV) are hot topics. They are clearly related, but how exactly are they similar? How are they different? How do they complement each other? Are you new to SDN or NFV? Check out SDNCentral’s SDN and NFV Essentials to learn the basics.

SDN – Born on the Campus, Matured in the Data Center
SDN got its start on campus networks. As researchers were experimenting with new protocols they were frustrated the need to change the software in the network devices each time they wanted to try a new approach. They came up with the idea of making the behavior of the network devices programmable, and allowing them to be controlled by a central element. This lead to a formalization of the principle elements that define SDN today:

Calsoft Whitepaper: Storage Performance Testing Guidelines

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The next area of success for SDN was in cloud data centers. As the size and scope of these data centers expanded it became clear that a better way was needed to connect and control the explosion of virtual machines. The principles of SDN soon showed promise in improving how data centers could be controlled.

Interested in learning more about network functions virtualization and software-defined netwo