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IEICE TRANSACTIONS on Communications

Fast Failure Restoration Algorithm with Reduced Messages Based on Flooding Mechanism

Komwut WIPUSITWARAKUN, Hideki TODE, Hiromasa IKEDA

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Summary :

A highly reliable network which can restore itself from network failures is one important concept for the future high capacity broadband network. In such self-healing network, flooding based failure-restoration algorithm is used to locate new routes and then to reroute failure traffic to that routes automatically when network failures such as link or node failures occur. Since the speed of this algorithm is degraded by the large amount of restoration messages produced by the process, such large volume messages should be reduced. In this paper, the scheme will be proposed, which reduces the large volume messages and efficiently selects alternative routes. In this scheme, the Message Wall will be used to filter useless restoration messages at the tandem nodes and Multi-Message Selecting method will be used to rapidly select a group of link-disjointed alternative routes from the feasible ones in each Flooding Wave sequence. The simulation results show that restoration messages are dramatically reduced and adequate alternative routes can be quickly found out.

Publication
IEICE TRANSACTIONS on Communications Vol.E80-B No.4 pp.564-572
Publication Date
1997/04/25
Publicized
Online ISSN
DOI
Type of Manuscript
Category
Communication Networks and Services

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