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Title:
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Design and implementation of a GMPLS-controlled grooming-capable optical transport network
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Author:
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Agraz Bujan, Fernando; Velasco Esteban, Luis Domingo; Perelló Muntan, Jordi; Ruiz Ramírez, Marc; Spadaro, Salvatore; Junyent Giralt, Gabriel; Comellas Colomé, Jaume
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques |
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Abstract:
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Aiming at better resource utilization, an
important requirement of future optical transport networks is the capability to accommodate subwavelength client flows efficiently. This can be put into action
thanks to the enhanced traffic engineering (TE) protocols provided within the generalized multiprotocol label switching (GMPLS) standardization. The present paper concentrates on the design and implementation
of a GMPLS-controlled grooming-capable transport infrastructure, namely, the automatically switched optical network (ASON)ÕGMPLS CARISMA test bed. Through the paper, the operation of a GMPLS-controlled multilayer network architecture is introduced, subsequently highlighting implementation issues that come to light. Special attention is devoted to a centralized flow reallocation module deployed
in the CARISMA test bed to minimize the
overall network cost. In this context, an integer linear programming (ILP) formulation to obtain its optimal cost is derived and low-weighted metaheuristics providing a nearly optimal solution are additionally proposed. All contributions in the paper
are supported by illustrative experimental results. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
-Optical fiber communication
-Routing protocols (Computer network protocols)
-Telecommunication -- Traffic -- Management
-Assignment and routing algorithms
-Networks, Circuit-switched
-Network optimization
-Comunicacions òptiques |
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Rights:
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Document type:
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Article - Published version
Article |
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Published by:
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IEEE Press. Institute of Electrical and Electronics Engineers
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