摘要
Software defined networking (SDN) and network functions virtualization (NFV) are being heralded as a fundamental leap forward, which will substantively transform the landscape of the whole telecommunications and networks area. A number of key technical advancements for network softwarization and virtualization, commoditizing networking hardware, simplifying operations, and reducing capital and operational expenditures have been quickly emerging on the fronts. Basically, decoupling the control plane from the data plane as well as decoupling the network functions from the hardware implementation using virtualization and service abstraction possess distinctive networking flexibility and capability, but also point to a number of functional and operational challenges.
