Software defined network traffic measurement: Current trends and challenges

Next generation networks such as Software Defined Networks (SDN) must support the integration of new paradigms of service offerings such as virtual cloud computing, big data applications, data centers services, and rich multimedia content. Operators of next generation SDNs are responsible for configuring policies that employ traffic monitoring tools and measurement mechanisms to detect and react to a wide range of network events and applications. In this article, we take a look at traffic measurement methods in SDNs, cover their strengths and weaknesses, point to open issues, and remaining future challenges.