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Optimal Capacity Provisioning for Survivable Next Generation Ethernet Transport Networks |
Journal of Optical Communications and Networking, Vol. 4, Issue 12, pp. 967-977 (2012)
http://dx.doi.org/10.1364/JOCN.4.000967
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Abstract
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 also provide protection in multi-ring mesh packet transport networks will position Ethernet as a serious competitor to conventional synchronous optical networking (SONET)/synchronous digital hierarchy (SDH) and the technology of choice for carrier networks. Operating ERP in multi-ring mesh networks, however, comes with unique challenges. This paper reveals some limitations of prior work which relied on exhaustive enumeration and proposes some modifications to overcome these subtle limitations. We also present an optimal ERP design formulation by jointly solving the problem of ring protection link placement and ring hierarchy selection whose objective is to minimize the overall capacity requirement. Our design approach is formulated as an integer linear program, which is shown to provide optimal capacity provisioning and be computationally scalable.
© 2012 OSA
OCIS Codes
(060.4256) Fiber optics and optical communications : Networks, network optimization
(060.4257) Fiber optics and optical communications : Networks, network survivability
ToC Category:
Research Papers
History
Original Manuscript: May 29, 2012
Revised Manuscript: September 13, 2012
Manuscript Accepted: September 22, 2012
Published: November 19, 2012
Citation
Mohammad Nurujjaman, Samir Sebbah, Chadi Assi, and Martin Maier, "Optimal Capacity Provisioning for Survivable Next Generation Ethernet Transport Networks," J. Opt. Commun. Netw. 4, 967-977 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-12-967
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