Short description
(English)
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The deployment of wavelength-division-multiplexing (WDM) systems and networks meets the ever growing bandwidth needs of Internet traffic and offers the opportunity to shift several network related functionalities from electrical to optical domain. Thus, in so called all-optical networks, protection and restoration (P&R) schemes can be implemented using optical switches leading to partial or full survivability in case of component failures. The goal of this project is to develop a set of planning and performance evaluation tools dealing with both quality of service (QoS) and resilience aspects. These tools will enable the comparative dimensioning and performance assessment of various network architectures proposed within the COST Action 291.
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Partners and International Organizations
(English)
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AT, BE, CH, CZ, DE, DK, ES, FR, GR, HR, HU, IE, IL, IT, LV, NO, PL, PT, SE, SK, UK
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Abstract
(English)
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The deployment of wavelength-division-multiplexing (WDM) systems and networks meets the ever growing bandwidth needs of Internet traffic and offers the opportunity to shift several network related functionalities from electrical to optical domain. The goal of this project has been to develop a set of planning and performance evaluation tools dealing with both quality of service (QoS) and resilience aspects. These tools enabled comparative dimensioning and performance assessment of various network architectures proposed within the COST Action 291. As a first step, a set of network reference scenarios has been elaborated and made available on a web site (http://tcom.epfl.ch/static/MND/page.html) as agreed within WG3. An xml-based language has been used to describe network topologies and traffic demands to facilitate the use of this data by any planning tool. A software tool intended to solve routing and wavlength assignment problem (RWA) has been developed and made available to project partners. This RWA tool can also deal with resilient network architectures where protection and restauration mechanisms are implemented. A flexible event-driven simulator for OBS (optical burst switching) has been programmed and tested on several published network architectures. It will be used in the near future to assess new routing algorithms suitable for OBS networks. Finally, EPFL-TCOM has an active contribution to the edition of the final report of the COST Action 291.
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