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Paper Abstract and Keywords
Presentation 2024-03-01 11:35
Evaluation for effectiveness of time precision in a packet monitoring system
Daichi Muramatsu, Ayaka Doi, Daigo Deguchi (Daido Univ), Takashi Kurimoto (NII), Hiroyuki Kimiyama (Daido Univ) NS2023-213
Abstract (in Japanese) (See Japanese page) 
(in English) A network monitoring system, which is integrated with a general PC, is widely used for network operation and many kind of experiment since it is easily configured. On the other hand, an internal clock system in a general PC is based on a crystal oscillator. Since such oscillator is not so accurate, we should adjust the clock using other methods, such as NTP. Therefore, the methods to adjust the PC's clock affects accuracy of measured throughput, delay, and other QoS data. However, no evaluation has been executed yet. Therefore, we evaluate time precision of packet capture data that is collected by a packet capture system with its clock adjusted by NTP or PTP by using a real-time 4K video encoder system. We also capture packets from a smartphone to evaluate an effectiveness of clock adjusting method. As a result, we show that we can get 100 nano-seconds time precision for capture data by using PTP as time adjusting method, and we can get 1ms time precision by using both NTP and PTP.
Keyword (in Japanese) (See Japanese page) 
(in English) Packet monitoring system / Time precision / NTP / PTP / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 397, NS2023-213, pp. 240-245, Feb. 2024.
Paper # NS2023-213 
Date of Issue 2024-02-22 (NS) 
ISSN 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 NS2023-213

Conference Information
Committee NS IN  
Conference Date 2024-02-29 - 2024-03-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Convention Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2024-02-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation for effectiveness of time precision in a packet monitoring system 
Sub Title (in English)  
Keyword(1) Packet monitoring system  
Keyword(2) Time precision  
Keyword(3) NTP  
Keyword(4) PTP  
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1st Author's Name Daichi Muramatsu  
1st Author's Affiliation Daido University (Daido Univ)
2nd Author's Name Ayaka Doi  
2nd Author's Affiliation Daido University (Daido Univ)
3rd Author's Name Daigo Deguchi  
3rd Author's Affiliation Daido University (Daido Univ)
4th Author's Name Takashi Kurimoto  
4th Author's Affiliation National Institute of Informatics (NII)
5th Author's Name Hiroyuki Kimiyama  
5th Author's Affiliation Daido University (Daido Univ)
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Speaker Author-1 
Date Time 2024-03-01 11:35:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2023-213 
Volume (vol) vol.123 
Number (no) no.397 
Page pp.240-245 
#Pages 6 
Date of Issue 2024-02-22 (NS) 

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