Workshop on Dependability Issues on SDN and NFV (DISN)

Software-Defined Networks (SDN) and Network Function Virtualization (NFV) are two technologies that have already had a deep impact on computer and telecommunication networks. Software Defined Networks (SDN) decouple network control from forwarding functions, enabling network control to become directly programmable and the underlying infrastructure to be abstracted from applications and network services. Network Function Virtualization (NFV) is a network architecture concept where IT virtualization techniques are used to implement network node functions as building blocks that may be combined, or chained, together to create communication services. SDN and NFV make it simpler and faster to deploy and manage new services, avoiding the cost and the long time frame required to design and implement hardwarebased network services. Furthermore, these technologies allow the existing hardware infrastructure to be effectively used, as services can be (re-)allocated according to requirements, resources and load.