Navegando por Assunto "GMPLS"
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Item Acesso aberto (Open Access) Tolerância a falha em redes ópticas de nova geração(Universidade Federal do Pará, 2006-08-21) SOUZA, Jaime Viana de; ABELÉM, Antônio Jorge Gomes; http://lattes.cnpq.br/5376253015721742Availability is of considerable concern for network desingners due to the increasing importance of the information that pass through them, motivating the providers of telecommunications services to improve the capacity and the qyality of their backbones. Optical networks that use WDM (“Wavelength Division Multiplexing”) usually present control plane based in GMPLS (Generalized Multiproptocol Label Switching) architecture, because it provides one batter adequation between IP protocol and the optical layer. This work makes a comparative study, between the machanisms used for the traditional optical networks and the said ones of the next generation. It considers the adoption of different mechanism of fault tolerance in function of the traffic model, through simulations, in the networks implemented by SDH/SONET architecture and simulations in computer of the main mechanisms offered for the multilayer model IP-GMPLS/WDM to provide protection and restoration of connectivity in nexte-generation optical networks, being objectified to authenticate our proposal.