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Paper Abstract and Keywords
Presentation 2023-12-22 09:55
Improving RDMA Reliability in Long-Haul Optical Networks
Junki Ichikawa, Kiwami Inoue, Hitoshi Masutani, Kazuaki Obana, Hirokazu Takahashi, Koichi Takasugi (NTT) IN2023-46
Abstract (in Japanese) (See Japanese page) 
(in English) With the growth of cloud computing, the demand for high bandwidth and low latency data center networks continues to increase. In NTT's IOWN concept, the aim is to connect data centers and computing resources, which are distributed in remote locations, quickly and efficiently using next-generation optical communication technology. As a key technology in this endeavor, we are focusing on Remote Direct Memory Access (RDMA).
In our previous study, we proposed a method to extend the effective distance of conventional RDMA by using pseudo-ACK function, and showed its effectiveness through implementation evaluation. While this enabled high-speed data transfer regardless of distance, it had limitations on reliability in that it disabled packet loss detection and retransmission mechanisms. In this paper, we introduce a communication segment adaptive retransmission mechanism to solve the reliability issues of the previous studies. This enables the completion of retransmission in a shorter time compared to conventional RDMA while maintaining long-distance high-speed performance. We implement and evaluate the proposed scheme and show its effectiveness.
Keyword (in Japanese) (See Japanese page) 
(in English) optical network / IOWN / RDMA / acceleration / software / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 317, IN2023-46, pp. 52-57, Dec. 2023.
Paper # IN2023-46 
Date of Issue 2023-12-14 (IN) 
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 IN2023-46

Conference Information
Committee IN IA  
Conference Date 2023-12-21 - 2023-12-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Satellite Campus Hiroshima 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Performance Analysis and Simulation, Robustness, Traffic and Throughput Measurement, Quality of Service (QoS) Control, Congestion Control, Overlay Network/P2P, CCN, ICN, Multicast, Routing, Security, etc. 
Paper Information
Registration To IN 
Conference Code 2023-12-IN-IA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving RDMA Reliability in Long-Haul Optical Networks 
Sub Title (in English)  
Keyword(1) optical network  
Keyword(2) IOWN  
Keyword(3) RDMA  
Keyword(4) acceleration  
Keyword(5) software  
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1st Author's Name Junki Ichikawa  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Kiwami Inoue  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Hitoshi Masutani  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Kazuaki Obana  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
5th Author's Name Hirokazu Takahashi  
5th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
6th Author's Name Koichi Takasugi  
6th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2023-12-22 09:55:00 
Presentation Time 25 minutes 
Registration for IN 
Paper # IN2023-46 
Volume (vol) vol.123 
Number (no) no.317 
Page pp.52-57 
#Pages 6 
Date of Issue 2023-12-14 (IN) 

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