Journal ArticleDOI
Feasibility study of a high-speed SONET self-healing ring architecture in future interoffice networks
T.-H. Wu,M.E. Burrowes +1 more
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TLDR
The economic feasibility of using SONET self-healing-ring (SHR) architecture in survivable interoffice fiber networks is studied and results of two case studies based on a metropolitan local access and transport area (LATA) network are discussed.Abstract:
The economic feasibility of using SONET self-healing-ring (SHR) architecture in survivable interoffice fiber networks is studied. The model used is discussed, and the selection criterion for the candidate area in this study, the SHR cost model, the hubbing network cost model, the network survivability measure, and the network growth model are described. Results of two case studies based on a metropolitan local access and transport area (LATA) network are discussed. One involves a single- and the other a dual-homing interoffice network. Sensitivity analysis and network impact results are highlighted. >read more
Citations
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Patent
Method and apparatus for automatic protection switching
TL;DR: In this article, the authors propose a method and apparatus for generating first and second tree topologies for any source node in a network which can be represented as a node or an edge redundant graph, such that any node in the graph remains connected to the source node via at least one tree.
Journal ArticleDOI
Emerging technologies for fiber network survivability
TL;DR: Technology and architectures that may be used to implement cost effective survivable fiber networks for each transport layer are reviewed, and the interworking system between survivability mechanisms across different layers and associated open issues are discussed.
Journal ArticleDOI
The hop-limit approach for spare-capacity assignment in survivable networks
TL;DR: A new approach for spare-capacity assignment in mesh-type self-healing networks which use reconfigurable network elements as transmission hubs is presented to demonstrate, for cases where hop limits can feasibly be kept low, its superiority over other algorithms published in this area.
Patent
Fault isolation for communication networks for isolating the source of faults comprising attacks, failures, and other network propagating errors
Ruth Bergman,Muriel Medard +1 more
TL;DR: In this paper, a distributed technique for isolating faults in a communication network is described, which can be used in a variety of network restoration paradigms, including but not limited to automatic protection switching and loopback protection and provides proper network operation reduced and bounded delay time regardless of the location of the attack or the physical span of the network.
Patent
Self-healing line switched ring for ATM traffic
Donald Ellis,Brent E. Allen,David Wright Martin,Edward Ryszard Sokolowski,Patrick M. Mceachern +4 more
TL;DR: In this article, a method for transporting a SONET formatted asynchronous transfer mode (ATM) signal and/or a synchronous transfer mode signal on a line switched ring over a unidirectional path is presented.
References
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Book
SONET: now it's the standard optical network
Ralph Ballart,Yau-Chau Ching +1 more
TL;DR: The authors discuss aspects of the SONET (synchronous optical network) standards and standardization process, both national and international, that they consider to be of particular interest.
Journal ArticleDOI
SONET: now it's the standard optical network
Ralph Ballart,Yau-Chau Ching +1 more
TL;DR: In this article, the authors discuss aspects of the SONET (synchronous optical network) standards and standardization process, both national and international, that they consider to be of particular interest.
Journal ArticleDOI
Survivable network architectures for broad-band fiber optic networks: model and performance comparison
TL;DR: The study show that a 'single homing' architecture with 1:N diverse protection provides affordable survivability for fiber cable cuts and for future architectures, the self-healing rings could both improve survivability and reduce costs.
Journal ArticleDOI
Computer-aided design procedures for survivable fiber optic networks
TL;DR: The authors describe methods to design cost-effective survivable telecommunications networks that use fiber-optic transmission links that use optical switching devices to implement route diversity during cable cuts using a software tool consisting of a topology generator, a circuit to DS3 bundler, and a multiplex layout system.
Proceedings ArticleDOI
High-speed self-healing ring architectures for future interoffice networks
TL;DR: It is concluded that more global planning methods will be needed to determine the optimal mix of SHR and the traditional hubbing architecture in the interoffice networks of the future.