Definition of SDN and NFV

SDN and NFV are one of the terms in the network industry that has emerged in recent years. Let's take a look at the definitions of these terms and how they work!

SDN, NFV and VNF are one of the terms in the network industry that has emerged in recent years.

Software-controlled networks, virtual network functions and related virtual network functions are important trends. However, according to Forrester analyst - Andre Kindness, the vague term from suppliers has created a complex market for end users to evaluate next generation network technology. He said: Very few I&O experts understand these acronyms and it is this confusion that has led to many investments in the network.

Definition of SDN and NFV Picture 1 Definition of SDN and NFV Picture 1

So what is the difference between SDN, NFV and VNF? Let's find out in the article below!

What is SDN?

SDN or Software defined networking is the idea of separating the control plane of the network from data plane that is responsible for forwarding network traffic. The purpose of this separation is to create networks that can be programmed and centrally managed. In many cases, SDN is deployed using a software-based management platform to control network hardware. In addition, it was deployed using built-in hardware and added software. This technology is mainly used in enterprise data centers, to meet the requirement of creating an easily adaptable network for business needs. SDN also has a number of sub-directories, including software-defined Wide Area Network (SD-WAN) or using SDN to split network traffic for security purposes.

What is NFV?

The NVF or Network Function Virtualization is a virtualization of network functionality, originally formed by a number of telecommunications service providers who want to control how to provide network services to customers more easily. The basic idea of NFV is to virtualize network services and summarize them from specialized hardware. NFVs are often deployed using commodity servers to run software versions of network services that were previously based on hardware. Services based on this software are called VNF (Virtual Network Functions) and will run in the NFV environment. Examples of VNF include routers, firewalls, load balancing, WAN acceleration and encryption. Manufacturers can provide customers with services by virtualizing these network services.

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