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Paper Abstract and Keywords
Presentation 2011-12-16 09:35
A study of shared-spare edge router system
Toru Okugawa, Akiko Kuboniwa, Tatsunori Nakabasami, Satoshi Nishiyama, Yoichi Furuta, Hitoshi Nohisa (NTT) NS2011-137
Abstract (in Japanese) (See Japanese page) 
(in English) Edge router is the equipment which accommodates each user’s access line and provide several services, e.g. triple-play services. The higher availability of the edge router is getting required as the system capacity gets larger. We have proposed shared-spare edge router system to achieve high availability with minimum cost. When a primary edge router fails one of its modules and loses inner chassis redundancy, the proposed system enables a shared spare chassis to synchronize to that router by using 1:1 stateful redundancy capability of the router. One of the disadvantages of the proposed system is that the case of sudden system down before the shared spare router synchronizes. To reduce this disadvantage, the improvement is discussed in this report, including proactive triggered synchronizing. Fail-safe switchover for the proposed system is also discussed.
Keyword (in Japanese) (See Japanese page) 
(in English) edge router / redundancy / shared spare system / / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 344, NS2011-137, pp. 109-114, Dec. 2011.
Paper # NS2011-137 
Date of Issue 2011-12-08 (NS) 
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)
Download PDF NS2011-137

Conference Information
Committee NS RCS  
Conference Date 2011-12-15 - 2011-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamaguchi University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network 
Paper Information
Registration To NS 
Conference Code 2011-12-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study of shared-spare edge router system 
Sub Title (in English)  
Keyword(1) edge router  
Keyword(2) redundancy  
Keyword(3) shared spare system  
1st Author's Name Toru Okugawa  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Akiko Kuboniwa  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Tatsunori Nakabasami  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Satoshi Nishiyama  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
5th Author's Name Yoichi Furuta  
5th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
6th Author's Name Hitoshi Nohisa  
6th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Date Time 2011-12-16 09:35:00 
Presentation Time 25 
Registration for NS 
Paper # IEICE-NS2011-137 
Volume (vol) IEICE-111 
Number (no) no.344 
Page pp.109-114 
#Pages IEICE-6 
Date of Issue IEICE-NS-2011-12-08 

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