論文

査読有り
2012年1月

Transparent VPN failure recovery with virtualization

FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF GRID COMPUTING AND ESCIENCE
  • Yohei Matsuhashi
  • ,
  • Takahiro Shinagawa
  • ,
  • Yoshiaki Ishii
  • ,
  • Nobuyuki Hirooka
  • ,
  • Kazuhiko Kato

28
1
開始ページ
78
終了ページ
84
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.future.2011.05.020
出版者・発行元
ELSEVIER SCIENCE BV

Cloud computing is widely used to provide today's Internet services. Since its service scope is being extended to a wide range of business applications, the security of network communications between clients and clouds are becoming important. Several cloud vendors support virtual private networks (VPNs) for connecting their clouds. Unfortunately, cloud services become unavailable when a VPN failure occurred in a VPN gateway or networks. We propose a transparent VPN failure recovery scheme that can hide VPN failures from users and operating systems (OSs). This scheme transparently recovers from VPN failures by establishing VPN connections in a virtualization layer. When a VPN failure occurs, a client virtual machine monitor (VMM) automatically reconnects to an available VPN gateway which is geographically distributed and connected via leased lines in clouds. IP address changes are hidden from client OSs and servers via a packet relay system implemented by a relay client in the client VMM and a relay server. We implemented a prototype system based on BitVisor, a small client VMM supporting IPsec VPN, and evaluated the prototype system in a wide-area distributed Internet environment in Japan. Experimental results show that our scheme can maintain TCP connections on VPN failures, and performance overhead with the virtualization layer is around 0.6 ms to latency and 8%-30% to throughput. (C) 2011 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.future.2011.05.020
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201102294736463524
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000295947900009&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.future.2011.05.020
  • ISSN : 0167-739X
  • J-Global ID : 201102294736463524
  • Web of Science ID : WOS:000295947900009

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