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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Eficiência e auto-escalabilidade na virtualização do serviço de tradução de endereços

Barea, Emerson Rogério Alves 22 February 2016 (has links)
Submitted by Luciana Sebin (lusebin@ufscar.br) on 2016-10-07T18:12:52Z No. of bitstreams: 1 DissERAB.pdf: 2425846 bytes, checksum: 4f23e91fd2bdddcaf67d6efb2354814e (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-13T19:50:06Z (GMT) No. of bitstreams: 1 DissERAB.pdf: 2425846 bytes, checksum: 4f23e91fd2bdddcaf67d6efb2354814e (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-13T19:50:15Z (GMT) No. of bitstreams: 1 DissERAB.pdf: 2425846 bytes, checksum: 4f23e91fd2bdddcaf67d6efb2354814e (MD5) / Made available in DSpace on 2016-10-13T19:50:25Z (GMT). No. of bitstreams: 1 DissERAB.pdf: 2425846 bytes, checksum: 4f23e91fd2bdddcaf67d6efb2354814e (MD5) Previous issue date: 2016-02-22 / Não recebi financiamento / This work presents a novel architecture for the address translation service (NAT) with efficient scalability through the use of Network Functions Virtualization (NFV) in low cost computing environments. To this end, a virtualized network function (VNF) of NAT is instantiated in a minimal OS (ClickOS) and uses a feedback control system to smooth the rate control. Our results indicate that the proposed architecture meets several relevant NFV requirements, including high efficiency, obtaining up to 900% higher throughput gains compared to Linux NAT. In addition, the Proportional Integral control system (PI) yields 85% accuracy in estimating the exact rate using only 3 samples. / Este trabalho apresenta uma proposta de arquitetura de serviço de tradução de endereços (NAT) com escalabilidade eficiente através do uso de Virtualização de Funções de Rede (NFV) em ambientes computacionais de baixo custo. Para isso, uma função de rede virtualizada (VNF) do tipo NAT foi instanciada em sistema minimalista ClickOS e com um sistema de controle retroalimentável realizando o controle da vazão de maneira suave. Nossos resultados indicam que a arquitetura proposta, implementada e testada atende vários requisitos considerados importantes em NFV, como alta eficiencia, obtendo ganhos de 900% na vazão em alta escala contrastado com NAT do Linux. Além disso, resultados do sistema de controle do tipo Proporcional Integral (PI) demonstram 85% de acurácia na vazão prevista em apenas 3 amostras.

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