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Paper Abstract and Keywords
Presentation 2015-03-03 11:10
Identifying Mechanically Generated Communications for Service Quality Monitoring by Network Packet Analysis
Junichi Higuchi, Yuji Nomura (FUJITSU LAB.) CQ2014-116
Abstract (in Japanese) (See Japanese page) 
(in English) Analyzing IP packets captured from network is an effective way to monitor the quality of a service experienced by users. For request-response style services such as web services, response time of user-operations can be measured by analyzing IP packets in application protocol layer and extracting request/response messages. On an encrypted application protocol such as HTTPS, however, it is unable to distinguish between communications generated by users’ operations and that mechanically generated by the service such as long polling. Therefore, if we calculate response time from all communications including ones for long polling, it becomes a problem that the waiting time on server side for long polling makes the calculated response time greatly differ from user experienced one. In this paper, we introduce a novel method to measure user experienced response time of a service on an encrypted application protocol by identifying and eliminating long polling communications mechanically generated without relation to user operations. In the method, long polling communications are identified through the use of distinguishing patterns on estimated request/response messages when time-out occurs. Experimental evaluations on an in-house groupware/mail service confirm the method can measure response time which well fits to user experience.
Keyword (in Japanese) (See Japanese page) 
(in English) Quality of Experience / Response Time / Long Polling / Packet Analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 488, CQ2014-116, pp. 25-30, March 2015.
Paper # CQ2014-116 
Date of Issue 2015-02-24 (CQ) 
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 CQ2014-116

Conference Information
Committee CQ IMQ MVE IE  
Conference Date 2015-03-03 - 2015-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Seikei Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CQ 
Conference Code 2015-03-CQ-IMQ-MVE-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Identifying Mechanically Generated Communications for Service Quality Monitoring by Network Packet Analysis 
Sub Title (in English)  
Keyword(1) Quality of Experience  
Keyword(2) Response Time  
Keyword(3) Long Polling  
Keyword(4) Packet Analysis  
1st Author's Name Junichi Higuchi  
2nd Author's Name Yuji Nomura  
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Date Time 2015-03-03 11:10:00 
Presentation Time 25 
Registration for CQ 
Paper # IEICE-CQ2014-116 
Volume (vol) IEICE-114 
Number (no) no.488 
Page pp.25-30 
#Pages IEICE-6 
Date of Issue IEICE-CQ-2015-02-24 

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