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Paper Abstract and Keywords
Presentation 2014-11-27 13:00
The High Reliability Network Equipment utilizing non-Volatile Data
Tomoyuki Oku (Hitachi), Yoshifumi Atarashi (ALAXALA Networks) IA2014-67
Abstract (in Japanese) (See Japanese page) 
(in English) Event log information stored in communication equipment (CE) is useful for fault analysis. However, a number of event logs which are to be stored in CE and have various importance for the analysis are so massive that, hard disk drives (HDD) in CE may lose some event logs because HDD is not accessed at sufficiently high-speed enough. To this weak point, there is an approach to record event logs on non-volatile memory which is accessed at higher-speed than HDD. However, its price per bit is high and its capacity in CE is limited. Then, we propose a method which records only logs with higher levels of importance on non-volatile memory than an administrator demands, in order to achieve high-density log recording that is suitable for cause analysis of failures. We also suggest an automatic failure evasion technique using recorded event logs. Our method focuses on logs that are recorded just before a failure occurs, and automatically generates an exclusion-definition (i.e. conflicted configuration) based on the recorded logs. We define those logs that may cause equipment to crash as hindrance factors. The proposed method will be able to provide a communication network which has high availability and fault tolerance since it brings stable operation of CE when it recovered from a failure.
Keyword (in Japanese) (See Japanese page) 
(in English) Non-Volatile Memory / Exclusion-Definition / Hindrance Factors / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 335, IA2014-67, pp. 31-36, Nov. 2014.
Paper # IA2014-67 
Date of Issue 2014-11-20 (IA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 IA  
Conference Date 2014-11-27 - 2014-11-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Green-Squalle Sekigane (Tottori) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) (cosponsored by JSPS 163rd Committee on Internet Technology) 
Paper Information
Registration To IA 
Conference Code 2014-11-IA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The High Reliability Network Equipment utilizing non-Volatile Data 
Sub Title (in English)  
Keyword(1) Non-Volatile Memory  
Keyword(2) Exclusion-Definition  
Keyword(3) Hindrance Factors  
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1st Author's Name Tomoyuki Oku  
1st Author's Affiliation Hitachi Ltd. (Hitachi)
2nd Author's Name Yoshifumi Atarashi  
2nd Author's Affiliation ALAXALA Networks Corp. (ALAXALA Networks)
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Speaker Author-1 
Date Time 2014-11-27 13:00:00 
Presentation Time 25 minutes 
Registration for IA 
Paper # IA2014-67 
Volume (vol) vol.114 
Number (no) no.335 
Page pp.31-36 
#Pages 6 
Date of Issue 2014-11-20 (IA) 

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