Overlap-extend hierarchical restoration for metropolitan area network

Yining Cao; Chao Bian; Yanhe Li; Hanyi Zhang

doi:10.1117/12.688123

28 September 2006 Overlap-extend hierarchical restoration for metropolitan area network

Yining Cao, Chao Bian, Yanhe Li, Hanyi Zhang

Proceedings Volume 6354, Network Architectures, Management, and Applications IV; 63541T (2006) https://doi.org/10.1117/12.688123
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

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.

Citation Download Citation

Yining Cao, Chao Bian, Yanhe Li, and Hanyi Zhang "Overlap-extend hierarchical restoration for metropolitan area network", Proc. SPIE 6354, Network Architectures, Management, and Applications IV, 63541T (28 September 2006); https://doi.org/10.1117/12.688123

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