Semantic Internet of Things (IoT) Interoperability …
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3. NBIs = The NBIs are northbound interfaces defined between the control plane
and the application plane.
Application Plane/Layer: This plane is placed at the top of SDN architecture.
They consist of applications or programs per se that make use of an abstract view of
the whole network for their various internal decision-making purposes.
5 NFV (Network Function Virtualization)
This NFV is used for performing various standalone operations like Firewall, Load
balancers, Intrusion Detection Systems, etc. on different VM (Virtual Machines).
Some functionality may also have various VNF (Virtual Network Functions’) as
Slices on a single VM.
VNF (Virtual Network Function): If one application is divided into several parts,
then each part can be run as separate VNF for that dedicated task. It is also called a
Network Slice.
NFV Architecture: The NFV is used to virtualize the network functions of the
network devices such as switches, routers, etc. which would help to make the systems
more scalable and traditional network devices instead (Fig. 3).
The NFV comprises of 3 main functionalities
Fig. 3 NFV architecture