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Listanti, Marco; Sabella, R.

doi:10.1023/a:1026566530056

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Cited by 8 publications

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Protection and Restoration Strategies in WDM Mesh Networks

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Listanti

Settembre

et al. 2003

Next Generation Optical Network Design and Modelling

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Abstract:This paper analyzes strategies for protection and restoration in a WDM network supporting two main classes of services. We refer to a scenario in which the optical network interacts with Multi-Protocol Label Switching (MPLS) based networks. We analyze routing, wavelength assignment, and protection/restoration issue. First the analysis is done at a pure optical level, handling the traffic with wavelength granularity. Then the option of a routing coordinated between the MPLS and optical layers is taken into account. In this case, there is the possibility to route the traffic on a LSP basis, providing a more efficient use of optical resources and restoration capabilities at the expense of an increase of electrical processing.

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