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Proceedings Paper

Dynamic lightpath establishment mechanisms based on automatically switched optical network (ASON)
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Paper Abstract

It is believed that on-demand dynamic lightpath provisioning will enable service providers to respond quickly and economically to customer demands. One of the challenges involved in designing wavelength-routed networks with dynamic traffic demands is to develop efficient algorithms and protocols for establishing lightpaths. This paper proposes a novel dynamic path-selection algorithm that combines service path link using probability weight with efficient disjoint-path restoration bandwidth sharing to obtain a balanceable traffic distribution during the wavelength route selection, and consider the wavelength bandwidth capability sharing between the disjoint paths for the failure scenario. At the same time, to realize dynamic lightpath establishment, this paper discusses the strategy of lightpath establishment based on Automatically Switched Optical Network (ASON), and also presents the extension of GMIPLS protocols to efficiently collect and distribute the necessary information in ASON architecture frame. Through the distributed IP-centric protocol we can realize link state update and dissemination. To sum up, in this paper we hope to show a full and efficient dynamic path establishment mechanism with ASON control plane function and GMPLS principle.

Paper Details

Date Published: 9 September 2002
PDF: 12 pages
Proc. SPIE 4910, Optical Networking II, (9 September 2002); doi: 10.1117/12.482429
Show Author Affiliations
Jijun Zhao, Beijing Univ. of Posts and Telecommunications and Hebei Institute of Architectural Science (China)
Lei Lei, Beijing Univ. of Posts and Telecommunications (China)
Yuefeng Ji, Beijing Univ. of Posts and Telecommunications (China)
Daxiong Xu, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 4910:
Optical Networking II
Shizhong Xie; Chunming Qiao; Yun Chur Chung, Editor(s)

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