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Paper Abstract and Keywords
Presentation 2014-03-04 11:15
Performance Evaluation of Bandwidth-Variable Path Restoration Method for Optical Layer-2 Switch Network
Masahiro Nakagawa, Kyota Hattori, Masaru Katayama, Hiroaki Ogawa (NTT) PN2013-104
Abstract (in Japanese) (See Japanese page) 
(in English) We are developing an optical layer-2 switch network which utilizes both WDM and TDM technologies and centralized control scheme in order to provide future large-scale metro networks cost-effectively. In this network, each TDM path is dynamically controlled in response to changes in network condition such as traffic fluctuation, which makes it likely that network resources can be shared by many paths efficiently. Generally, high reliability against unpredictable failure is required for network infrastructure hence many fault recovery methods are developed. In this paper, we propose a restoration method that realizes a fast recovery against single-link failure in large-scale network cost-effectively. This method uses fast failure detection scheme that utilizes control plane and fast bandwidth allocation algorithm, which leads to fast recovery without backup resources. Simulation results show that the proposed method achieves less than 50 ms of service recovery time in 10K-bandwidth-variable path network. We also report on our feasibility evaluation with a prototype system.
Keyword (in Japanese) (See Japanese page) 
(in English) WDM/TDM Ring Network / Highly-Resilient Network / Path Restoration / Dynamic Time-Slot Allocation / Recovery Time / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 455, PN2013-104, pp. 73-78, March 2014.
Paper # PN2013-104 
Date of Issue 2014-02-24 (PN) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee PN  
Conference Date 2014-03-03 - 2014-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokushima Bunri University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Photonic network technologies 
Paper Information
Registration To PN 
Conference Code 2014-03-PN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance Evaluation of Bandwidth-Variable Path Restoration Method for Optical Layer-2 Switch Network 
Sub Title (in English)  
Keyword(1) WDM/TDM Ring Network  
Keyword(2) Highly-Resilient Network  
Keyword(3) Path Restoration  
Keyword(4) Dynamic Time-Slot Allocation  
Keyword(5) Recovery Time  
1st Author's Name Masahiro Nakagawa  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Kyota Hattori  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Masaru Katayama  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Hiroaki Ogawa  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Date Time 2014-03-04 11:15:00 
Presentation Time 25 
Registration for PN 
Paper # IEICE-PN2013-104 
Volume (vol) IEICE-113 
Number (no) no.455 
Page pp.73-78 
#Pages IEICE-6 
Date of Issue IEICE-PN-2014-02-24 

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