期刊名称：International Journal of Computer Science and Network Solutions
印刷版ISSN：2345-3397
出版年度：2015
卷号：3
期号：7
页码：8-20
出版社：International Journal of Computer Science and Network Solutions
摘要：In 21 century, networks provide flexibility to users and businesses is at high cost. Managing and controlling suchnetworks has become very difficult and complex activity. In this situation, Software Defined Networking is the bestsolution because SDN change the networking world. Software Defined Networking provides flexible control overnetwork policies and traffic flows. By using Software Defined Networking, network administrator would be able tochange network policies according to user requirements. Secondly, Internet protocols brought a huge success inearly seventies due to its success new applications are developed slightly different from the previous used networks.Flexibility and security is a big challenge and is marked as limitations. This efforts result is bringing SoftwareDefined Networking (SDN) concept. Nowadays SDN occurs in open flow. Its basic concept is to deeply analyzecomputer networks.This research paper examines the concept of software Defined Networking. How Software Defined Networks areused for security. This paper also examines the SDN architecture and takes analysis of different applicationarchitectures of SDN and also explains the challenges and solutions of SDN
关键词：SDN; Open Flow; Path Computation Element; North Bound Interfaces
