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Paper Abstract and Keywords
Presentation 2009-01-16 09:30
Method of network reliability evaluation considering failure frequency and severity
Tatsuya Matsukawa, Hiroyuki Funakoshi (NTT) CQ2008-68
Abstract (in Japanese) (See Japanese page) 
(in English) The level of network reliability has to be achieved not only in the network-design phase but also in the
network-operation phase because the period from the design to the deployment tends to shorten in IP networks.
It is important that the level of network reliability is understood by analyzing the network failure data and the
corrective action is selected by using these results. Therefore, in this paper, a method to analyze the failure rate for failure severity and to evaluate the network reliablity is proposed. This paper describes the procedure to calculate the probability plot by normalizing the upper cumlative frequency, the scheme to estimate the characterestics of network reliability, and the evaluation method of overall network reliability. Additionally, the feasibility of the proposed method is verified by applying to the network outage data. Moreover, we consider the requirement for the evaluation in the network operation and management phase, and clarify the future issues.
Keyword (in Japanese) (See Japanese page) 
(in English) communication network / reliability / failure severity / failure frequency / outage data / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 378, CQ2008-68, pp. 49-54, Jan. 2009.
Paper # CQ2008-68 
Date of Issue 2009-01-08 (CQ) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee MVE CQ  
Conference Date 2009-01-15 - 2009-01-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyazaki Seagaia Resort 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Multimodal Quality, Communication Design in Virtual World, etc. 
Paper Information
Registration To CQ 
Conference Code 2009-01-MVE-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Method of network reliability evaluation considering failure frequency and severity 
Sub Title (in English)  
Keyword(1) communication network  
Keyword(2) reliability  
Keyword(3) failure severity  
Keyword(4) failure frequency  
Keyword(5) outage data  
1st Author's Name Tatsuya Matsukawa  
2nd Author's Name Hiroyuki Funakoshi  
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Date Time 2009-01-16 09:30:00 
Presentation Time 30 
Registration for CQ 
Paper # IEICE-CQ2008-68 
Volume (vol) IEICE-108 
Number (no) no.378 
Page pp.49-54 
#Pages IEICE-6 
Date of Issue IEICE-CQ-2009-01-08 

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