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Paper Abstract and Keywords
Presentation 2012-06-21 09:50
Multi-path Connections for Layer2 Networks using Flow Based Routing
Kazuaki Akashi, Hiroshi Yoshida (NTT) NS2012-31
Abstract (in Japanese) (See Japanese page) 
(in English) A redundancy for interconnecting Layer2 Networks (L2NWs) is important to achieve highly-reliable Wide Area Ethernet service. Conventional technologies for interconnecting L2NWs are unable to obtain high resource usage efficiency and forward frames with shortest path, because these technologies use backup paths only during route failure for preventing L2 loop failure. Recently, link aggregation and L2 routing protocols such as TRILL, SPB are used to realize redundant and efficient L2 NW. However, these methods impose various restrictions such as installing protocols-enabled switches on each L2NW, when these are applied for the redundancy interconnecting L2NWs. In this paper, we propose a multi-path connections method for interconnecting L2NWs without improvement in existing networks. The proposed method employs flow based routing on switches that interconnects multiple networks to prevent loop failure. We use OpenFlow to implement this method and confirmed that loop failure is prevented with the proposed method over simple physical loop structure across interconnected networks by experiment.
Keyword (in Japanese) (See Japanese page) 
(in English) Ethernet / Loop Failure / Layer2 Routing / OpenFlow / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 85, NS2012-31, pp. 11-16, June 2012.
Paper # NS2012-31 
Date of Issue 2012-06-14 (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 NS2012-31

Conference Information
Committee NS OCS PN  
Conference Date 2012-06-21 - 2012-06-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamagata Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Core/metro system, Photonic network system, Optical network operation and administration, Optical network design, Traffic engineering, Signaling, GMPLS, Inter-domain route control, Network monitoring, Ethernet, Optical transport network(OTN), High-speed interface, Optical control(wavelength conversion/switching/routing), optical node technology, Optical crossconnect(OXC), Optical add/drop multiplexer(OADM), Optical multipxing/demultiplexing equipment, Optical signal processing, Optical swtiching device, etc 
Paper Information
Registration To NS 
Conference Code 2012-06-NS-OCS-PN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multi-path Connections for Layer2 Networks using Flow Based Routing 
Sub Title (in English)  
Keyword(1) Ethernet  
Keyword(2) Loop Failure  
Keyword(3) Layer2 Routing  
Keyword(4) OpenFlow  
1st Author's Name Kazuaki Akashi  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Hiroshi Yoshida  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Date Time 2012-06-21 09:50:00 
Presentation Time 25 
Registration for NS 
Paper # IEICE-NS2012-31 
Volume (vol) IEICE-112 
Number (no) no.85 
Page pp.11-16 
#Pages IEICE-6 
Date of Issue IEICE-NS-2012-06-14 

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