Navegando por Assunto "Next-generation optical networks"

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Proposta de arquitetura para o estabelecimento dinâmico de conexões determinísticas e busca de recursos multidomínio em redes grid OBS baseadas no GMPLS
(Universidade Federal do Pará, 2011-06-17) NUNES, Anderson Marques; CERQUEIRA, Eduardo Coelho; http://lattes.cnpq.br/1028151705135221
The processing capacity of research institutions has been growing significantly as processors and workstations increasingly powerful emerging in the market. Considering the improvement of performance in the area computer networks and seeking to fill the demand for ever greater processing, the idea to use networked computers as independent platform for running parallel applications, thus creating the area grid computing. In a network that is under the same administrative domain, is common for there to share resources such as disks, printers, etc. But when the network goes beyond an administrative domain, this sharing becomes very limited. The purpose of computing grids is to allow sharing resources even if they are scattered in different areas administration. This thesis proposes an architecture for dynamic establishment of connections multidomain which makes use of optical burst switching (OBS) using a GMPLS control plane (Generalized Multiprotocol Label Switching). The architecture is based on storing information about grid resources of autonomous systems in a separate component called GOBS Root Server (Grid OBS) and the use of explicit routing to reserve resources along a route that satisfies the performance constraints of an application. The validation of the proposal is made through simulations that show that the architecture is capable of levels of performance differed according to the application class and provides a better utilization of network resources and computing.