Implementação e avaliação de múltiplas tabelas de fluxo em switches OpenFlow aplicadas em vCPE e Sd-VANETs

• Ano de defesa: 2020
• Autor(a) principal: Galhardo, Edwardes Amaro
• Orientador(a): Oliveira Júnior, Antônio Carlos de
• Banca de defesa: Oliveira Júnior, Antônio Carlos de, Freitas, Leandro Alexandre, Santos Filho, Tércio Alberto dos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Programa de Pós-graduação em Ciência da Computação (INF)
• Departamento: Instituto de Informática - INF (RG)
• País: Brasil
• Palavras-chave em Português: Múltipla tabela de fluxo; SDN; Switch OpenFlow; vCPE; Sd-VANET
• Palavras-chave em Inglês: Multiple flow table; SDN; Sd-VANET; Switch OpenFlow; vCPE
• Área do conhecimento CNPq: CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/10913

With the dynamism and adaptability provided by the SDN and NFV paradigms, it is possible to make computer networks programmable. And this makes the performance of the applications to be optimized, as the management and resolution of possible problems becomes easy. In this way, virtualizing network functions, allows the simultaneous application of several applications on the same hardware. The OpenFlow protocol is largely responsible for all this rise in programmable networks. This protocol defines the functioning of all elements of the network and establishes a pattern of interaction between them. The data plan is separate from the control plan, and the network operating system, or controller, is the element that has a centralized view of the entire network. This "privileged view" allows the controller to update the network architecture without modifying packet switching elements. The switch is one of the elements used in a network to carry out data traffic through the flow table pipeline. As modern applications increasingly need space and flexibility to meet the interoperability required by current systems, the pipeline based on a single flow table can leave implementations inflexible and rigid. Therefore, this work proposes the implementation of multiple flow tables in OpenFlow switches applied and evaluated in two modern scenarios of Software Defined Networks: vCPE (virtual Custommer Premises Equipment) and Sd-VANET (Software defined Vehicular Ad-hoc Network). Experiments in simulation environments using the iperf application revealed that the OpenFlow network equipped with the scheme of multiple flow tables, can manipulate the functions and services of vCPE and Sd-VANET with greater flexibility, and still obtain an average gain of 17,48\% in the general performance of the proposed scenarios.