Title page for ETD etd-0828103-110339

Type of Document Master's Thesis
Author Wei, Chung-Yu
Author's Email Address cwei1@lsu.edu
URN etd-0828103-110339
Title Traffic Engineering in Multiprotocol Label Switching Networks
Degree Master of Science in Electrical Engineering (M.S.E.E.)
Department Electrical & Computer Engineering
Advisory Committee
Advisor Name Title
Morteza Naraghi-Pour Committee Chair
David M. Koppelman Committee Member
Jorge Aravena Committee Member
  • multiprotocol label switching (MPLS)
  • quality of service (QoS)
  • traffic engineering
Date of Defense 2003-07-29
Availability unrestricted
The goal of Traffic Engineering is to optimize the resource utilization and increase the network performance. Constraint-based routing has been proposed as an networks effective approach to implement traffic engineering in Multiprotocol Label Switching. In this thesis, we review several algorithms on constraint-based routing from the literature and point out their advantages and disadvantages. We then propose several algorithms to overcome some of the shortcomings of these approaches. Our algorithms are specifically suitable for large densely connected networks supporting both Quality of Service traffic and the Best Effort traffic. In large networks the size of the MPLS label space in a node may become extremely large. Our algorithms allow for control on the size of the label space for each node in the network. In addition, explicit routes can be accommodated supporting both node and link affinity. We address an algorithm that implements the node and link affinity correctly. If the QoS traffic has stringent delay requirements, a path length limit can be imposed so that the number of hops on the path for such traffic is limited. Finally, we propose the 1 + 1 and 1 : 1 path protection mechanisms using the constraint-based routing in MPLS and establish backup for the working path carrying the primary traffic. Our approach appropriately overcome the problems and the result are satisfying.
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