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| Presentation | 2013-03-08 13:20 Virtual Network Assignment Considering Performance and Fault Tolerance in a Multi-tenant Data Center Yukio Ogawa (Hitachi), Go Hasegawa, Masayuki Murata (Osaka Univ.)  IN2012-186 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In a multi-tenant data center, a proper assignment of tenants' virtual overlay networks on the physical underlay network is indispensable for sharing total bandwidth of the physical network effectively and tolerating network failures. In this report, for increasing performance and availability of the virtual networks, we first formulate the problem that deals with the effective bandwidth of a virtual network, which is defined by the difference between available bandwidth allocated to the virtual network and loss of the bandwidth when the failure of a element occurs in the physical network. Then, we provide procedures to recover from the failure, and propose a model for the virtual network's recovery time from the failure in the physical network. In the proposed model, the recovery time depends on the degree of concentration of the virtual network elements on the physical network elements. Finally, using computer simulations, we confirm that when we assign the virtual networks so as to maximize the sum of their effective bandwidth, the virtual networks can fully utilize the physical bandwidth, while the total downtime is reduced to one-third as compared to the assignment for maximizing the sum of available bandwidth of the virtual networks. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | multi-tenant / data center / virtual network / available bandwidth / optimized assignment / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 464, IN2012-186, pp. 191-196, March 2013. | |
| Paper # | IN2012-186 | |
| Date of Issue | 2013-02-28 (IN) | |
| 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 | IN2012-186 |
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| Conference Information | |
| Committee | NS IN |
| Conference Date | 2013-03-07 - 2013-03-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Zanpamisaki Royal Hotel |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | IN |
| Conference Code | 2013-03-NS-IN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Virtual Network Assignment Considering Performance and Fault Tolerance in a Multi-tenant Data Center |
| Sub Title (in English) | |
| Keyword(1) | multi-tenant |
| Keyword(2) | data center |
| Keyword(3) | virtual network |
| Keyword(4) | available bandwidth |
| Keyword(5) | optimized assignment |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yukio Ogawa |
| 1st Author's Affiliation | Hitachi, Ltd. (Hitachi) |
| 2nd Author's Name | Go Hasegawa |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Masayuki Murata |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2013-03-08 13:20:00 |
| Presentation Time | 20 minutes |
| Registration for | IN |
| Paper # | IN2012-186 |
| Volume (vol) | vol.112 |
| Number (no) | no.464 |
| Page | pp.191-196 |
| #Pages | 6 |
| Date of Issue | 2013-02-28 (IN) |
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