Firewall and Load Balancer System using Software Defined Networks

Network usage and demands are growing at a very fast rate and to meet the current requirements, there is a need for automatic infrastructure scaling. Software defined networking, referred to as a revolutionary new idea in computer networking, is the new approach that promises to dramatically simplify network-control and the management plane. It is achieved through innovative network programmbility. OpenFlow, one of the techniques of SDN technology, is a new approach to networking. Because of many limitations, the development of the traditional load balancing technology has encountered bottlenecks. This has forced companies to find new load balancing method. Software Defined Network (SDN) provides a good method to solve the load balancing problem. We are proposing firewall System for SDN environment which identifies malicious behaviors or attacks and reports to network administrators as intrusion events. In this paper, we implemented load balancing algorithm that based on the latest SDN network architecture. We are using Dijkstra's algorithm to find multiple paths of same length which enables us to reduce the search to a small region in the fat tree topology. The technologies we describe enable network operators to implement a wide range of network policies in a high-level policy language and easily determine sources of performance problems. In addition to the systems themselves, we describe prototype deployments in campus networks that demonstrate how SDN can improve common network management tasks.