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Paper Abstract and Keywords
Presentation 2023-10-04 14:55
Study of high availability VPN gateway with hardware accelerator
Kotomi Takahashi, Katsuma Miyamoto, Hiroki kano, Shinya Kawano, Yasuyuki matsuoka (NTT) NS2023-75
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the amount of VPN (Virtual Private Network) traffic has been increasing due to the spread of teleworking. We have been studying software implementations of VPN gateways, but with the increase in traffic volume, we are now considering the use of HW (hardware) accelerators such as FPGAs (field programmable gate arrays) and other HW accelerators to advance VPN gateways. VPN gateways using HW accelerators can offload some of the processing that is conventionally performed by the CPU, thereby improving processing performance. However, VPN gateways using HW accelerators have issues such as slow failure recovery times and increased power consumption associated with redundancy. Therefore, this study examines three types of redundancy configurations with different standby system states in VPN gateways using HW accelerators. The redundant pattern A is a method to standby with the circuit written to the accelerator, the redundant pattern B is a method to standby with power-on, the redundant pattern C is a method to standby with power-off. The recovery time and power consumption per unit for each method were measured in the actual environment. In our experimental environment, the recovery times for the redundant pattern A, B, and C were 103, 154, and 364 seconds, respectively. The average power consumption was 377 W regardless of the circuit write status. Simulation results based on the measurement results confirmed that redundant pattern A was the best in terms of recovery time, and redundant pattern C was the best in terms of power consumption.
Keyword (in Japanese) (See Japanese page) 
(in English) VPN / hardware accelerator / FPGA / High availability / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 198, NS2023-75, pp. 29-29, Oct. 2023.
Paper # NS2023-75 
Date of Issue 2023-09-27 (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 NS2023-75

Conference Information
Committee NS  
Conference Date 2023-10-04 - 2023-10-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaidou University + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network architecture (5G, Local 5G, Beyond5G, Mobile networks, Ad-hoc and sensor networks, Overlay and P2P networks, Programmable networks, SDN/NFV, IoT, Network slicing), Next generation packet transport (High speed Ethernet, IP over WDM, Multi-service package technology, MPLS), Grid, etc. 
Paper Information
Registration To NS 
Conference Code 2023-10-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of high availability VPN gateway with hardware accelerator 
Sub Title (in English)  
Keyword(1) VPN  
Keyword(2) hardware accelerator  
Keyword(3) FPGA  
Keyword(4) High availability  
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1st Author's Name Kotomi Takahashi  
1st Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
2nd Author's Name Katsuma Miyamoto  
2nd Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
3rd Author's Name Hiroki kano  
3rd Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
4th Author's Name Shinya Kawano  
4th Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
5th Author's Name Yasuyuki matsuoka  
5th Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
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Speaker Author-1 
Date Time 2023-10-04 14:55:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2023-75 
Volume (vol) vol.123 
Number (no) no.198 
Page p.29 
#Pages 1 
Date of Issue 2023-09-27 (NS) 

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