New Self-Healing Scheme that Realizes Multiple Reliability on ATM Networks

Taishi YAHARA  Ryutaro KAWAMURA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E83-B   No.12   pp.2615-2625
Publication Date: 2000/12/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Switching
Keyword: 
restoration,  self-healing,  failure,  reliability,  ATM,  

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Summary: 
This paper proposes a new restoration concept for ATM networks. It realizes the rapid and multiple reliability/cost level restoration required to support many different network services. First, the necessity in realizing rapid and multiple-reliability-level restoration in the future network is shown. The self-healing schemes that is based on distributed restoration mechanism satisfies the rapidity in restoration, but does not satisfy multiple reliability levels. Thus a new self-healing scheme that satisfies them is presented and a Multiple Reliability Level Virtual Path network concept is proposed based on the new self-healing scheme. Next, how to realize the new self-healing scheme is explained as an extension of the existing self-healing scheme with two new simple functions. Finally, evaluations confirm the effectiveness of the proposed scheme. These results show that the proposed new scheme realizes a network that fulfills the rapidity and multiple reliability requirements that are strongly required.