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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 2, Iss. 10 — Oct. 1, 2010
  • pp: 782–792

Delay-Bandwidth-Aware Metric Abstraction Schemes for OIF E-NNI Multidomain Traffic Engineering

Francesco Paolucci, Filippo Cugini, Paola Iovanna, Giulio Bottari, Luca Valcarenghi, and Piero Castoldi  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 2, Issue 10, pp. 782-792 (2010)

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Multidomain traffic engineering (TE) has the potential not only of guaranteeing the quality of service (QoS) to connections spanning multiple domains but also of effectively utilizing intradomain resources. The hierarchical Optical Internetworking Forum (OIF) External Network-to-Network Interface (E-NNI) control plane platform has emerged as a promising candidate aiming at guaranteeing multidomain QoS provisioning. Recent efforts have been made to extend OIF E-NNI in the multicarrier scenario. However, open issues such as confidentiality, the choice of TE metric, the routing controller (RC) architecture, the path computation method, and the abstraction schemes responsible for selecting the appropriate value of the TE metric to be announced have not been addressed yet. In this study, what we believe to be a novel RC architecture integrating the path computation element (PCE) is proposed to enable the efficient provisioning of end-to-end QoS-guaranteed services. The key role of the TE metric is analyzed and discussed, together with different TE metric abstraction schemes. The end-to-end delay is here considered as the most suitable candidate and a novel family of such schemes, named delay-bandwidth aware (DBA), are proposed and evaluated by means of simulations. Results show the ability of such schemes to globally preserve control plane stability and network resource utilization while advertising a high service level.

© 2010 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Research Papers

Original Manuscript: March 16, 2010
Revised Manuscript: August 3, 2010
Manuscript Accepted: August 5, 2010
Published: September 13, 2010

Francesco Paolucci, Filippo Cugini, Paola Iovanna, Giulio Bottari, Luca Valcarenghi, and Piero Castoldi, "Delay-Bandwidth-Aware Metric Abstraction Schemes for OIF E-NNI Multidomain Traffic Engineering," J. Opt. Commun. Netw. 2, 782-792 (2010)

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