In recent years, the number of objects connected to the Internet has significantly increased. Increasing the number of connected devices to Internet is transforming today’s Internet of Things (IoT) into massive IoT of future. It is predicted, in a few years, a high communication and computation capacity will be required to meet demands of massive IoT devices and applications requiring data sharing and processing. 5G and beyond mobile networks are expected to fulfill part of these requirements by providing data rate of up to Terabits per second. It will be a key enabler to support massive IoT and emerging mission critical applications with strict delay constrains. On the other hand, next generation of Software Defined Networking (SDN) with emerging Cloud related technologies (e.g., Fog and Edge computing) can play an important role on supporting and implementing the above-mentioned applications. This paper sets out the potential opportunities and important challenges that must be addressed in considering options for using SDN in hybrid Cloud-Fog systems to support 5G and beyond-enabled applications
