Um catálogo de métricas para avaliação da qualidade de ambientes integrados de computação em nuvem, redes definidas por software e virtualização de funções de rede

Abstract

A cloud computing is a paradigm that suggests the integration of various technology models to deliver hardware infrastructure, development platforms, and applications in a pay-as-you-go model. Although there are several studies and recent developments, a cloud computing is still in the process of evolution and more and more new technologies that can be added to it, such as Software Defined Networks - SDN and Network Function Virtualization - NFV. SDN is a paradigm that promises to change the state of traditional IP networks, making them less complex and easier to manage. NFV emerges as a solution to the challenges faced by telecom service providers, as it takes a virtualization technology to offer a new way to design, deploy, and manage network services. With such technologies and challenges for their use, there is a need to integrate and to evaluate the quality of such integration. This work aims to develop a catalog of metrics for a quality evaluation of computational cloud environments supported by SDN and NFV technologies. To construct this catalog, we made a systematic mapping of current literature. Of a set of 529 works, 14 were selected for metrics extraction. From this catalog, the Resource Utilization metric was applied on a hybrid cloud computing environment, without the integration of the other two technologies (SDN and NFV), due to the difficulty of finding an integrated environment and short period for development. The Resource Utilization metric presented a good representation of the allocation and delocalization of resources on an experimental environment, allowing us to conclude that it can be used for the evaluation of integrated environments of CC, SDN, and NVF. With the possibility of different behavior than the achieved on hybrid clouds only experiment.