Introduction to SDN and NFV
Before discussing the difference between the two terms, let’s understand them first briefly.
SDN (Software-defined networking) is the concept that allows to programmatically control, change, and manage network behaviour dynamically via open interfaces and abstraction of lower layer functionality while NFV(Network functions virtualization) is the concept to use the technologies of IT virtualization to virtualize entire classes of network node functions into building blocks that may connect to create communication services.
The working of SDN and NFV is very close to each other with some of overlapping scope of each other’s functions.
Comparison Table: SDN vs NFV
Below table gives a clear comparison of both the terms –
|Strategy||Separation of control and Data , centralization of control and programmability of network||Replacement of dedicated appliances and devices with generic servers.|
|Supporters to initiative||Enterprise Software and Hardware vendors||Telecom Service Providers|
|Formalisation||Open Networking Forum (ONF)||ETSI NFV Working Group|
|Target Scope||Cloud, Data Center and Campus environment||Service Provider domain|
|Application run||Industry standard servers / switches||Industry standard Servers|