Field trial of an ASON in the metropolitan area

Richter, A.; Fischler, W.; Buchwieser, Andreas; Buchberger, T.; Stilling, Bernd; Lankl, Berthold

doi:10.1109/ofc.2002.1036192

Cited by 10 publications

(8 citation statements)

References 2 publications

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“…In [4], the authors give the connection tear-down time: Td=T3+T4. It includes the signaling time (T3) from OCC to OXC and optical switching time (T4).…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…Its average time is about 200ms. Note that in [4], it also tested the restoration time, but it used the OSPF hello packets to detect fiber broken, which is sent every 3 second. So its restoration time is much longer than our experiment.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…It directly maps network-layer routing information to data-link layer switched paths, by which LSRs can setup/delete label switched paths (LSPs). So the slowly third-layer route can be alternated by fast second-layer switch [4]. Since it is designed for packet switching network, some extensions must be made so that it can be used in optical network control plane.…”

Section: Extentions To Ldpmentioning

confidence: 99%

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Optical connection management in ASON based on LDP extensions

Zheng

Zhang

et al. 2002

SPIE Proceedings

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We make an extension to the label distribute protocol in order to realize optical connection management in automatically switched optical network. Its characteristics, such as the dynamic lightpath creation and deletion, and fast restoration are investigated and tested experimentally. How to handle failures occur during these two processes is also explained in detail. The experiment results are discussed and compared with others' previous work. The experiment setup which is made of four optical nodes and of mesh type network is also described in details in the paper.

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“…In [4], the authors give the connection tear-down time: Td=T3+T4. It includes the signaling time (T3) from OCC to OXC and optical switching time (T4).…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

Section: Experimental Setup and Resultsmentioning

confidence: 99%

Section: Extentions To Ldpmentioning

confidence: 99%

See 1 more Smart Citation

Optical connection management in ASON based on LDP extensions

Zheng

Zhang

et al. 2002

SPIE Proceedings

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“…Richter etc demonstrate a 4-node ASON with dynamic path protection. The restoration time measured is 10 seconds that can be improved to be 1 or 2 seconds [10] . Lingampalli etc demonstrate a 17-node ASON with 1:1 path protection.…”

Section: Comparison With Distributed Restorationmentioning

confidence: 99%

Fault location method and test for WDM all-optical networks

Sun

Wei

et al. 2004

Network Architectures, Management, and Applications

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Fault location in WDM all-optical networks is a very important problem in practical network operation and administration. In this paper a simple and efficient method based on causal chain and set theory is proposed for the problem of fault location according to the current alarms in one network. A detailed fault location algorithm for single point fault is implemented based on the algorithm theory mentioned above. This method combines the network configuration model with the network fault model using object-oriented idea. Some tags and attributs related to fault and alarm are extended in configuration model which reduces the memory space and quickens the seeking. A WDM all-optical network connection management system using this algorithm is applied to a three-node WDM network. The testing results show that the proposed algorithms are correct and feasible. The average time for fault location is 9 seconds and the average time for restoration is 14 seconds.

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“…Uma rede óptica avançada consegue comutar rapidamente os caminhos ópticos usando mecanismos de sinalização que habilitam cada elemento da rede a identificar e atualizar a topologia da rede e automaticamente reconfigurar os caminhos ópticos [5], [6], [7] Os principais benefícios de uma rede óptica com essas características para as operadoras de serviços são baixos custos, rápido retorno do investimento, melhor utilização dos recursos, redução na intervenção manual, simplificação dos sistemas de gerenciamento, suporte para redes totalmente ópticas e fácil integração entre redes [8].…”

Section: -Características Das Redes óPticasunclassified

Arquitetura de nós e engenharia de tráfego em redes ópticas

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DedicatóriaDedico este trabalho aos meus pais Helvécio Moreira de Almeida Júnior e Anamaria Scalon Almeida e minha irmã Anne Scalon Almeida pela compreensão e paciência ao longo desses 7 longos anos de mestrado e doutorado. Dedico também a minha sobrinha Mônica Scalon que nos deu a alegria de sua existência durante esse período.Dedico a minha namorada Thaís Araújo pela paciência, amor e pelo seu tempo dedicado para longas conversas para me acalmar nos dias mais difíceis.Dedico aos dois irmãos que ganhei durante esse período. Luizir Modesto Pereira que com sua experiência profissional e visão de vida tornou essa jornada suportável. E ao meu irmão e companheiro para todas as horas Eduardo Martinelli Galvão de Queiroz que batalhou cada minuto para que conseguíssemos atingir os objetivos que sempre desejamos. Espero estar com vocês pela vida toda. AgradecimentosA Deus, pela saúde para suportar o trabalho.Ao Professor Doutor Amilcar Carelli César, pela excelente orientação, confiança e paciência durante esses 7 anos de mestrado e doutorado.Aos Professores Ben-Hur Viana Borges e José Carlos Sartori pela oportunidade de convivência e pelos conhecimentos.Ao amigo Eduardo José Aloia que, apesar de sua confusão do dia a dia, se torna indispensável para tornar a vida mais divertida. Aos amigos da empresa TCS tecnologia Luis Claudio Teixeira Sanches eLuciana Trevisan pelo suporte dado para as aplicações práticas.

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Field trial of an ASON in the metropolitan area

Cited by 10 publications

References 2 publications

Optical connection management in ASON based on LDP extensions

Optical connection management in ASON based on LDP extensions

Fault location method and test for WDM all-optical networks

Arquitetura de nós e engenharia de tráfego em redes ópticas

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