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Proceedings Paper

Overlap-extend hierarchical restoration for metropolitan area network
Author(s): Yining Cao; Chao Bian; Yanhe Li; Hanyi Zhang
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Paper Abstract

The restoration time is an important network survivability index in large-scale Metropolitan Area Network. The early study indicates that the hierarchical restoration mechanism have lower restoration time, comparing with global restoration. But the restoration time increases rapidly when the restoration scope expands. In this paper, Overlap-extend hierarchical restoration mechanism is proposed to reduce the restoration time, by restricting the restoration in a definite scope. A theory model is established to describe the average restoration time of Overlap-extend mechanism and existing hierarchical restoration mechanism, which can be used to analyse the influencing factors in our mechanism. Simulation result is also presented, which shows that overlap-extend mechanism can observably reduce restoration time, especially in light traffic load.

Paper Details

Date Published: 28 September 2006
PDF: 8 pages
Proc. SPIE 6354, Network Architectures, Management, and Applications IV, 63541T (28 September 2006); doi: 10.1117/12.688123
Show Author Affiliations
Yining Cao, Tsinghua Univ. (China)
Chao Bian, Tsinghua Univ. (China)
Yanhe Li, Tsinghua Univ. (China)
Hanyi Zhang, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 6354:
Network Architectures, Management, and Applications IV
Yong Hyub Won; Gee-Kung Chang; Ken-ichi Sato; Jian Wu, Editor(s)

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