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| Presentation | 2011-03-04 13:00 Improvement of QCN Rate Increase Algorithm for Fairness among Flows in Data Center Networks Yuki Hayashi, Hayato Itsumi, Miki Yamamoto (Kansai Univ.)  NS2010-288 |
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| 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 requires 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 reveal that a cause of unfairness is that flow with high transmission rate can increase its transmission rate faster than low transmission rate flow. We propose Adaptive BC LIMIT for QCN where BC LIMIT is adaptively decided according to current transmission rate of flows. Simulation results show that our proposed method significantly improves fairness among QCN flows. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | QCN / Data center / LAN/SAN Convergence / Congestion Control / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 448, NS2010-288, pp. 711-716, March 2011. | |
| Paper # | NS2010-288 | |
| Date of Issue | 2011-02-24 (NS) | |
| 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) | |
| Download PDF | NS2010-288 |
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| Conference Information | |
| Committee | IN NS |
| Conference Date | 2011-03-03 - 2011-03-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Convention Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General, NS+IN workshop (March 3-4) |
| Paper Information | |
| Registration To | NS |
| Conference Code | 2011-03-IN-NS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of QCN Rate Increase Algorithm for Fairness among Flows in Data Center Networks |
| Sub Title (in English) | |
| Keyword(1) | QCN |
| Keyword(2) | Data center |
| Keyword(3) | LAN/SAN Convergence |
| Keyword(4) | Congestion Control |
| Keyword(5) | |
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| 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 | 2011-03-04 13:00:00 |
| Presentation Time | 20 minutes |
| Registration for | NS |
| Paper # | NS2010-288 |
| Volume (vol) | vol.110 |
| Number (no) | no.448 |
| Page | pp.711-716 |
| #Pages | 6 |
| Date of Issue | 2011-02-24 (NS) |
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