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Performance enhancements in next generation multi-service broadband ring networks

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Performance enhancements in next generation multi-service broadband ring networks

Kawwas, Charlie (2007) Performance enhancements in next generation multi-service broadband ring networks. PhD thesis, Concordia University.

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Abstract

Multi-service broadband networks are forming the basis of a converged service and transport infrastructure. These next generation networks use the Internet Protocol (IP) and Multi-Protocol Label Switching (MPLS) to deliver service and network convergence. The dominant topology, especially in the Edge and Core of such networks, is the ring. Resilient Packet Ring (RPR) has emerged as a key technology and IEEE standard (IEEE 802.17) in delivering Edge and Core transport convergence enabling high utilization, resiliency and fairness. However, the current standard has several drawbacks such as slow convergence, severe oscillation, inefficient utilization of the dual-ring and inconsistent class of service handling. We examine multiple classes of IP services in the Edge and Core networks connected over ring topologies and review the pros and cons of RPR versus alternative solutions. We devise a new technique to increase the performance of RPR and optimize the use of the dual-ring bandwidth while distinguishing between various classes of service. We refer to this technique as Flow-based Priority Distribution (FPD); we take into account the total bandwidth available on both counter-rotating rings, and allocate flow bandwidth based on availability, cost and traffic prioritization. We also introduce a new transit buffer design, referred to as 3-TB design, which provides consistent service differentiation across the network. We analyze the performance of our techniques, and compare the results with current and recent techniques in the RPR research. We recommend the combination of FPD and 3-TB by Service Providers for evolving their networks to a packet-based infrastructure and delivering new IP-based services.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Electrical and Computer Engineering
Item Type:Thesis (PhD)
Authors:Kawwas, Charlie
Pagination:xxiii, 138 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:Ph. D.
Program:Electrical and Computer Engineering
Date:2007
Thesis Supervisor(s):Soleymani, M. Reza
ID Code:975301
Deposited By: Concordia University Library
Deposited On:22 Jan 2013 16:05
Last Modified:18 Jan 2018 17:40
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