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Paper Abstract and Keywords
Presentation 2022-03-10 09:10
Route Optimization for Traffic Engineering with Flow Re-routing Suppression
Masato Nishiguchi, Takayuki Fujiwara, Satoshi Nakatsukasa, Yuki Takei (NTT) NS2021-122
Abstract (in Japanese) (See Japanese page) 
(in English) Traffic Engineering (TE) is an approach to optimize the utilization of network resources for reducing congestion in the network. TE explicitly changes traffic routes based on the amount of traffic exchanged in order to minimizing the maximum link utilization, which is a measure of congestion. However, since re-routing temporarily degrades the quality of communication, TE should limit or reduce the communication to be re-routed. In this paper, we propose a route optimization method for TE that can suppress re-routing on the granularity of user communication flows in carrier networks. The proposed method suppresses the occurrence of re-routing through two steps: (1) selecting the TE target flows based on the user grade and application characteristics of the flow, and (2) calculating the routes to minimize the maximum link utilization and the amount of re-routing. We formulate it as a mixed-integer programming problem, but since it is clearly NP-hard, so we propose three heuristics and evaluate their maximum link utilization and total amount of re-routing in terms of the gap between them and the optimal solution. Finally, the evaluation results show that our proposal can effectively utilize network resources while suppressing flow re-routing.
Keyword (in Japanese) (See Japanese page) 
(in English) traffic engineering / route optimization / re-routing suppression / fine-grained traffic control / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 433, NS2021-122, pp. 1-6, March 2022.
Paper # NS2021-122 
Date of Issue 2022-03-03 (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 NS2021-122

Conference Information
Committee NS IN  
Conference Date 2022-03-10 - 2022-03-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2022-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Route Optimization for Traffic Engineering with Flow Re-routing Suppression 
Sub Title (in English)  
Keyword(1) traffic engineering  
Keyword(2) route optimization  
Keyword(3) re-routing suppression  
Keyword(4) fine-grained traffic control  
Keyword(5)  
Keyword(6)  
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1st Author's Name Masato Nishiguchi  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Takayuki Fujiwara  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Satoshi Nakatsukasa  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Yuki Takei  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2022-03-10 09:10:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2021-122 
Volume (vol) vol.121 
Number (no) no.433 
Page pp.1-6 
#Pages 6 
Date of Issue 2022-03-03 (NS) 

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