Literature Survey on Network Traffic Management in Software Defined Networking

Software defined Networking is new paradigm for networking, in which there exists two layers control plane which controls network and another is data forward plane. Logic written for traffic management and switching is taken outside the devices like the switches and routers. Software from outside the devices takes over the job. With the help of one change the network topology and layout within a short amount of time. SDN promises to solve both cost of labor performing manual maintenance and administrative tasks in one single blow to the status quo. Traffic engineering problem for SDN controller is to route the traffic in such a way that the delay and packet loss at link are minimized. In existing scenario SDN controllers are deployed incrementally. In proposed system SDN controllers are deployed in tree like structure such that lower level controller is controlled by upper level controller so that all the network is controlled by single SDN controller centrally. Making possible to centralized control over the global view of network with improved architecture will be considered.