KeyFlow : uma proposta para o provimento de conectividades fabric no núcleo de redes definidas por software

• Ano de defesa: 2014
• Autor(a) principal: Oliveira, Rafael Emerick Zape de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Engenharia Elétrica; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia Elétrica
• Palavras-chave em Português: Redes definidas por software (SDN); OpenFlow (Protocolo de rede de computador); Redes de computadores - Protocolos; Comutação de pacotes (Transmissão de dados); Engenharia Elétrica; 621.3
• Link de acesso: http://repositorio.ufes.br/handle/10/9637

The large bulk of packets/flows in future core networks will require a highly efficient header processing in the switching elements. Simplifying lookup in core network switching elements is capital to transport data at high rates and with low latency. Flexible network hardware combined with agile network control is also an essential property for future Software-Defined Networks (SDN). We argue that only further decoupling between control plane and data plane will unlock that flexibility and agility in SDN for the design of new network solutions for core networks. This paper proposes a new approach named KeyFlow to build a flexible network-fabric-based model. It replaces the table lookup in forwarding engine by elementary operations relying on residue number system (RNS). This provides us tools to design a stateless core network by still using OpenFlow centralized control. A proof of concept prototype is validated using the Mininet emulation environment and OpenFlow 1.0. The results indicate RTT reduction above 50%, especially for networks with densely populated flow tables. KeyFlow achieves above 30% reduction in keeping active flow state in the network.