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Photonic Network Communications

, Volume 23, Issue 3, pp 217–229 | Cite as

Hierarchical routing and traffic grooming in IP/MPLS-based ASON/GMPLS multi-domain networks

  • Wajdi Halabi
  • Kris Steenhaut
  • Marnix Goossens
  • Thu-Huong Truong
  • Ann Nowé
Article

Abstract

Routing, connection setup, and path computation are well-known problems in multi-domain networks, which have been largely analyzed in pure IP (packet) networks. In circuit-switched optical multi-domain networks, there remain, however, a number of routing and path computation challenges. Traffic grooming means combining a number of low-speed traffic streams so that the high capacity of each lightpath may be used as efficiently as possible, as path computation implements the core of the grooming function, it is obvious that solutions for the traffic grooming problem in optical multi-domain networks are still not sufficiently investigated. In this study we propose a methodology to address the problems of routing, connection setup, and traffic grooming in optical multi-domain networks, which adapts a two-level hierarchical routing scheme and full-mesh topology abstraction algorithm to improve routing scalability and lower inter-domain blocking probabilities; additionally our proposed methodology adapts a scheme for traffic grooming in DWDM multi-domain networks to improve the resources usage. To test our proposed methodology we propose a detailed IP/MPLS-based ASON/GMPLS multi-domain multilayer test framework.

Keywords

ASON/GMPLS Integrated IP/WDM routing Traffic grooming IP/MPLS Optical multi-domain 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Wajdi Halabi
    • 1
  • Kris Steenhaut
    • 1
    • 2
  • Marnix Goossens
    • 1
  • Thu-Huong Truong
    • 4
  • Ann Nowé
    • 1
    • 3
  1. 1.ETRO DepartmentVrije Universiteit Brussel (VUB)BrusselsBelgium
  2. 2.IWT DepartmentErasmus Hogeschool Brussel (EHB)BrusselsBelgium
  3. 3.COMO LabVrije Universiteit Brussel (VUB)BrusselsBelgium
  4. 4.Department of Communication SystemsHanoi University of Science and TechnologyHanoiVietnam

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