A Survey on Software Defined Network based on Architecture, Issues and Challenges

Today almost everything is connected via Internet which is accessible from anywhere anyplace and anytime. Therefore, to overcome the traditional network challenges, we have employed new technology called software defined network. SDN is a new adventure in networking domain which is different from traditional networking models. In this technology SDN Controllers performs the control decision task in either centralized or distributed mode. SDN has been recommended as biggest hopeful outcome for upcoming internet. SDN has separated control plane from data plane and provides the estimation for network utilization development. SDN results in a more efficient and innovative design and delivers a better performance with a higher flexibility without the use of proprietary devices. This paper nicely presents fundamentals, detailed literature review and research challenges on software defined networks. Further provides a comparative study based on their techniques and features. This article will be helpful for new researchers to get an overview on the fundamentals of SDN architecture, related techniques and the corresponding features.