نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار دانشگاه جامع امام حسین(ع)
2 دانشجوی کارشناسی ارشد مهندسی کامپیوتر دانشگاه جامع امام حسین(ع)
3 کارشناسی ارشد مهندسی کامپیوتر دانشگاه جامع امام حسین(ع)
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In recent years, a new generation of networks called software defined networks (SDN) has been introduced whose main focus is on separating control logic from hardware and concentrating it on a central software called the "controller". SDN improves the network efficiency and reduces the expenses. Despite numerous advantages, SDN faces a lot of challenges such as scalability and reliability that can be fixed through physical decentralization of the control level and introduction of distributed controllers. However, the distributed controllers also face challenges including scalability, stability, and coordination strategy. This research deals with the improvement of distributed controllers’ scalability using the concept of load balancing. For this purpose, we have suggested that a controller load detection function (CLDF) be placed on each of the related controllers, and if the load exceeds the threshold level, the new load be transferred to a controller with the least load. The suggested method is implemented on the Floodlight controller in a distributed manner, and implemented on Ubuntu 14.04 operating system using the mininet simulation platform. The simulation results show that suggested method causes an average growth of 31.6 percent on the transition rate.
کلیدواژهها [English]
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