A Review on Traffic Engineering Techniques in Software Defined Networks

Software DefinedNetworking (SDN) is considered as a promising approach in networking paradigm. It distinguishes the control plane of the network from the plane which is used for data forwarding. This technique not only helps in optimal resource utilization in the network, but it also simplifies the complexity in management of the network, reduces the operating cost of the network and also encourages the innovative and evolutionary ideas. An emerging way to achieve this requirement that optimizes a network and helps in the improvisation of the network robustness is traffic engineering. Traffic Engineering can reduce link failure and service degradation in the network. Research communities have worked a lot on methods for traditional networking structures, which allows the network to adapt to the changes in traffic patterns. This paper mainly focuses on the review of the various state of the art methods for traffic engineering for Software Defined Network. It mainly concentrates on the techniques for traditional network architecture and to study the challenges in the implementation and future scope of such methods.