Integrating SDN, NFV and Infrastructure
Software Defined Networks (SDN) and Network Functions Virtualisation (NFV) are two complimentary paradigms aiming at realizing the network functions in software only.
- SDN concentrates on abstracting data path networking functionality into software
- NFV concentrates on the network functionality deployment as software services in data centers
From the SDN perspective, NFV provides the additional management for the deployment of the SDN control applications.
From NFV perspective, SDN represents a means for creation of network abstractions and to enable faster innovation. NFV contains three distinct domains which may be controlled by SDN: the network between the physical network components and the data centers, between the data centers and as virtual networks within a data center.
Virtual service enablement: an end-to-end perspective
The Fraunhofer FOKUS OpenSDNCore platform acts as an end-to-end middleware between:
- A distributed heterogeneous infrastructure including dedicated components (e.g. radio), heterogeneous data centers (compute & storage) and inter-connecting networks (fronthaul, backhaul, third party backbone, etc.)
- Generic network functions implemented in software and running in virtual machines: Virtualised IMS, EPC, radio and SGi components, home and enterprise networks, Application Servers, etc.