May 2015
Network Functions Virtualization (NFV) and Software Defined Networking (SDN) are part of a sweeping evolution that is moving the ICT industry from integrated, hardware – centric solutions to modular, hardware – agnostic frameworks by abstracting the hardw are resources into a consistent operating environment for the software. This Document defines priority use cases, such as virtual network operator, that emphasize the benefits of NFV in a multi – administrative domain environment and requ ire improved service integration and portability between network operators, web scale companies, and enterprises.