Implementação e avaliação de múltiplas tabelas de fluxo em switches OpenFlow aplicadas em vCPE e Sd-VANETs
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Data
2020-10-20
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Universidade Federal de Goiás
Resumo
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.
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Múltipla tabela de fluxo , SDN , Switch OpenFlow , vCPE , Sd-VANET , Multiple flow table , SDN , Sd-VANET , Switch OpenFlow , vCPE
Citação
GALHARDO, E. A. Implementação e avaliação de múltiplas tabelas de fluxo em switches OpenFlow aplicadas em vCPE e Sd-VANETs. 2020. 106 f. Dissertação (Mestrado em Ciência da Computação) - Universidade Federal de Goiás, Goiânia, 2020.