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Title:
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Traffic allocation strategies in WSS-based dynamic optical networks
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Author:
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Shakeri, Ali; Garrich, Miquel; Bravalheri, Anderson; Careglio, Davide; Solé Pareta, Josep; Fumagalli, Andrea
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla |
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Abstract:
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Elastic optical networking (EON) is a viable solution to meet future dynamic capacity requirements of Internet service provider and inter-datacenter networks. At the core of EON, wavelength selective switches (WSSs) are applied to individually route optical circuits, while assigning an arbitrary bandwidth to each circuit. Critically, the WSS control scheme and configuration time may delay the creation time of each circuit in the network. In this paper, we first detail the WSS-based optical data-plane implementation of a metropolitan network test-bed. Then, we review a software-defined networking (SDN) application designed to enable dynamic and fast circuit setup. Subsequently, we introduce a WSS logical model that captures the WSS time-sequence and is used to estimate the circuit-setup response time. Then, we present two batch service policies that aim to reduce the circuit-setup response time by bundling multiple WSS reconfiguration steps into a single SDN command. Resulting performance gains are estimated through simulation. |
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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 communications
-Switching circuits
-Circuit switching
-Optical networks
-Software defined networking
-Wavelength selective switch
-Comunicacions òptiques
-Circuits de commutació |
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Rights:
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Document type:
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Article - Submitted version
Article |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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