Ethernet over WDM: Optimization for resilience and scalability

András Kern, István Moldován, Péter Hegyi, Tibor Cinkler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The emerging Ethernet technologies deployed in Metro networks provide services based on pure Ethernet. Low cost optical Ethernet interfaces are used to interconnect different sites. Then, the use of Wavelength Division Multiplexing technology with Optical Ethernet is clearly the next step in building cost efficient Metro networks. In this paper we propose a novel architecture and configuration methods that make Metro Ethernet better scale to larger traffic and to covering larger areas that consist of more nodes promising significantly lower costs. The idea is to utilize wavelength paths optimally for bypassing certain Ethernet nodes and by employing traffic grooming according to different strategies we propose and compare. The result is always a tradeoff between the cost of the solution and the achievable throughput. Our methods are based on Integer Linear Program and combinatorial heuristics. The proposed architecture and the optimization framework support very fast recovery upon a failure. Furthermore, it handles the Shared Risk Link Groups to ensure that the working and the backup paths should be physically disjoint. The method also supports Traffic Engineering goals: network utilization and resilience. Furthermore, it can be well used to enforce limitations on the depth and diameter of the obtained logical topology that allows scalability.

Original languageEnglish
Title of host publication2007 6th International Workshop on Design and Reliable Communication Networks, DRCN 2007
DOIs
Publication statusPublished - Dec 1 2007
Event2007 6th International Workshop on Design and Reliable Communication Networks, DRCN 2007 - La Rochelle, France
Duration: Oct 7 2007Oct 10 2007

Publication series

Name2007 6th International Workshop on Design and Reliable Communication Networks, DRCN 2007

Other

Other2007 6th International Workshop on Design and Reliable Communication Networks, DRCN 2007
CountryFrance
CityLa Rochelle
Period10/7/0710/10/07

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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    Kern, A., Moldován, I., Hegyi, P., & Cinkler, T. (2007). Ethernet over WDM: Optimization for resilience and scalability. In 2007 6th International Workshop on Design and Reliable Communication Networks, DRCN 2007 [4762280] (2007 6th International Workshop on Design and Reliable Communication Networks, DRCN 2007). https://doi.org/10.1109/DRCN.2007.4762280