Lightweight application level multicast tunnelling using mTunnel

  • Authors:
  • Peter Parnes;KåRe Synnes;Dick SchefströM

  • Affiliations:
  • Department of Computer Science/Centre for Distance-spanning Technology, Luleå University of Technology, 971 87 Luleå, Sweden;Department of Computer Science/Centre for Distance-spanning Technology, Luleå University of Technology, 971 87 Luleå, Sweden;Department of Computer Science/Centre for Distance-spanning Technology, Luleå University of Technology, 971 87 Luleå, Sweden

  • Venue:
  • Computer Communications
  • Year:
  • 1998

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Abstract

This paper presents a system, named mTunnel, for application level tunnelling of IP-multicast traffic in a lightweight manner, where the end-user is responsible for deciding which MBone-sessions and which IP-multicast groups to tunnel. mTunnel is primarily designed for easy deployment and easy-to-manage tunnelling. Information about currently tunnelled sessions and control of mTunnel is provided through a Web-interface. To save bandwidth, tunnelled streams can be transcoded on the media level and traffic sent through the tunnel can be compressed by grouping several packets together and using statistical compression. The overall bandwidth reduction achieved, without modifying the media itself, has been measured to be between 5% and 14%, depending on the traffic and media type.