Análise comparativa de controladores para redes definidas por software de Classe Carrier Grade

Abstract

The original design of the Internet was conceived during sixties, into a whole different context of the current days. In this meantime new proposals have been added to the network which became used into the unthinkable areas and activities during its conception. New applications for which the network was subjected brought with them many new requirements, most of whom were not adequately met due to architectural limitations. The Internet evolution faces major challenges, foreseen from the nineties, when it began to face serious problems concerning the exhaustion of its addressing capabilities, and even before, when it was realised that an identiĄer with greater semantic expressiveness was needed. The SDN is an approach that has earned strength in recent years, by creating two abstraction layers for the network elements, which promotes the independence of the Data Plan and Control Plan. Around the world, the data network infrastructure is provided in general by the telecom operators, thus we must think on the future of networks with carrier grade quality. Carrier grade is a term originated in telecom area, but nowadays in many areas is synonymous with high availability, scalability, quality of service and security. Therefore, computer network technology, including OpenFlow, must present a solution with carrier grade capacity to become a candidate technology to implement the data networks of the telecommunication operators in the future. The goal of this work is to make a comparative experimental analysis of the main OpenFlow controllers to check their carrier grade properties that make them potential solutions being used by telecom operators.