NDLI: A multilayer solution for path provisioning in new-generation optical/MPLS networks

Content Provider	IEEE Xplore Digital Library
Author	Sabella, R. Settembre, M. Oriolo, G. Razza, F. Ferlito, F. Conte, G.
Copyright Year	1983
Abstract	This paper proposes an offline solution for global path provisioning in new-generation optical networks based on the generalized multiprotocol label switching (GMPLS) paradigm. This solution is based on a multilayer approach, which involves both the optical and the electrical layers and optimizes the network configuration and traffic routing. The proposed global provisioning solution can be easily combined with dynamic routing solutions, providing the network with the possibility of reacting promptly to traffic changes. Data flows are assumed to be structured into label switched paths (LSPs), which represent the connection in a GMPLS-based network, at any hierarchical level. The global provisioning issue is a difficult optimization problem. As a solution, we propose a new heuristic algorithm based on the shortest path computation and a mathematical programming approach, which makes use of the optimization solver CPLEX. A large computational study shows the effectiveness of the former, in terms of quality of the solutions. The advantages of the multilayer provisioning strategy are analyzed in a relevant case study by evaluating the network congestion.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1141
Ending Page	1155
Page Count	15
File Size	1280091
File Format	PDF
ISSN	07338724
Volume Number	21
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nonhomogeneous media Intelligent networks Optical fiber networks Multiprotocol label switching Telecommunication traffic Routing IP networks Asynchronous transfer mode SONET Web and internet services
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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