Distributed grooming in multi-domain IP/MPLS-DWDM networks

Authors:
Q. Liu;T. Frangieh;F. Xu;C. Xie;N. Ghani;A. Gumaste;T. Lehman;Chin Guok;S. Klasky
Affiliations:
Oak Ridge National Laboratory;Virginia Tech;University of New Mexico;University of New Mexico;University of New Mexico;IIT Bombay;University of Southern California-Information Sciences Institute;Lawrence Berkeley National Laboratory, ESnet;Oak Ridge National Laboratory
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

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Abstract

This paper studies distributed multi-domain, multi-layer provisioning (grooming) in IP/MPLS-DWDM networks. Although many multi-domain studies have emerged over the years, these have primarily considered "homogeneous" network layers. Meanwhile, most grooming studies have assumed idealized settings with "global" link state across all layers. Hence there is a critical need to develop practical distributed grooming schemes for real-world networks consisting of multiple domains and technology layers. Along these lines, a detailed hierarchical framework is proposed to implement inter-layer routing, distributed grooming, and setup signaling. The performance of this solution is analyzed using simulation studies and future directions high-lighted.