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Paper Abstract and Keywords
Presentation 2010-06-25 13:50
Improvement of Flow Fairness in QCN for Data Center Ethernet Network
Yuki Hayashi, Hayato Itsumi, Miki Yamamoto (Kansai Univ) NS2010-37
Abstract (in Japanese) (See Japanese page) 
(in English) In recent large-scale data center, two types of network, LAN and SAN are implemented. In order for simple
network management, integration of these two networks by Ethernet technology is now hotly discussed. SAN is required
significantly low frame loss rate. For integration of LAN and SAN, multi-hop Ethernet configuration is generally used and
congestion may occur in traffic hot spot. So, layer 2 congestion control which prevents frame loss in multi-hop Ethernet,
QCN(Quantized Congestion Notification), is now discussed in IEEE 802.1Qau. In this paper, we evaluate throughput performance
of QCN and reveal QCN has technical problem of fairness among active flows. We also propose a new“ Target Rate
Initialization method ”which improves fairness among flows and show its effectiveness by computer simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) QCN / Data center / LAN/SAN Convergence / Congestion Control / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 93, NS2010-37, pp. 55-60, June 2010.
Paper # NS2010-37 
Date of Issue 2010-06-17 (NS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
Download PDF NS2010-37

Conference Information
Committee OCS NS PN  
Conference Date 2010-06-24 - 2010-06-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Akita University 
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 2010-06-OCS-NS-PN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Flow Fairness in QCN for Data Center Ethernet Network 
Sub Title (in English)  
Keyword(1) QCN  
Keyword(2) Data center  
Keyword(3) LAN/SAN Convergence  
Keyword(4) Congestion Control  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuki Hayashi  
1st Author's Affiliation Kansai University (Kansai Univ)
2nd Author's Name Hayato Itsumi  
2nd Author's Affiliation Kansai University (Kansai Univ)
3rd Author's Name Miki Yamamoto  
3rd Author's Affiliation Kansai University (Kansai Univ)
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Speaker Author-1 
Date Time 2010-06-25 13:50:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2010-37 
Volume (vol) vol.110 
Number (no) no.93 
Page pp.55-60 
#Pages
Date of Issue 2010-06-17 (NS) 


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