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Design of Resilient Ethernet Ring Protection (ERP) Mesh Networks With Improved Service Availability


Design of Resilient Ethernet Ring Protection (ERP) Mesh Networks With Improved Service Availability

Nurujjaman, Mohammad, Sebbah, Samir and Assi, Chadi M. (2013) Design of Resilient Ethernet Ring Protection (ERP) Mesh Networks With Improved Service Availability. Journal of Lightwave Technology, 31 (2). pp. 203-212. ISSN 0733-8724

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Official URL: http://dx.doi.org/10.1109/JLT.2012.2227939


Ethernet Ring Protection (ERP) has recently emerged to provide protection switching for Ethernet ring topologies with sub-50 ms failover capabilities. ERP's promise to provide protection in mesh packet transport networks positions Ethernet as a prominent competitor to conventional SONET/SDH and as the technology of choice for carrier networks. Higher service availability, however, in ERP has been challenged by the issue of network partitioning and contention for shared capacity caused by concurrent failures. In this paper, we show that in a network designed to withstand single-link failure, the service availability, in the presence of double link failures, depends on the designed ERP scheme, i.e., the RPL placement as well as the selection of ring hierarchy. Therefore, we present a study for characterizing service outages and propose a design method which strikes a balance between capacity requirement and service availability (i.e., the number of service outages resulting from concurrent failures). We observe that through effective design, remarkable reduction in service outages is obtained at a modest increase in capacity deployment.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Concordia Institute for Information Systems Engineering
Item Type:Article
Authors:Nurujjaman, Mohammad and Sebbah, Samir and Assi, Chadi M.
Journal or Publication:Journal of Lightwave Technology
Digital Object Identifier (DOI):10.1109/JLT.2012.2227939
Keywords:Dual failures , ethernet ring protection , restorability , service availability , survivable network design
ID Code:977208
Deposited By: Danielle Dennie
Deposited On:30 Apr 2013 18:19
Last Modified:18 Jan 2018 17:44


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