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A generic multicast transport service to support disconnected operation

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Abstract

Many mobile computing applications can profit from process groups and reliable multicast communication to maintain replicated data, but most operating systems available today fail in providing the primitive operations needed by such applications. In this paper we describe a highly configurable, Generic Multicast Transport Service (GTS), which supports the implementation of group-based applications in wide-area settings. GTS is unique in that it offers fault-tolerant, order-preserving multicast on arbitrary communication protocols, including e-mail. As another distinguishing mark, messages can be sent to processes even when they are temporarily unavailable, which permits disconnected operation and mobility. We further propose an object-oriented system design consisting ofadaptor objects interconnected to form aprotocol tree. Adaptor objects offer a common interface to dissimilar communication protocols, and make it easy to incorporate new protocols into GTS. Currently, GTS is being used in a cooperative software engineering environment and in other projects. GTS is available for anonymous ftp.

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Authors and Affiliations

  1. Department of Computer Science, Cornell University, 14853-7501, Ithaca, NY, USA

    Silvano Maffeis

  2. UBILAB, Union Bank of Switzerland, Switzerland

    Walter Bischofberger & Kai-Uwe Mätzel

Authors
  1. Silvano Maffeis
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  2. Walter Bischofberger
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  3. Kai-Uwe Mätzel
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Additional information

Research supported by grants from Siemens-Nixdorf, Union Bank of Switzerland, and KWF/CERS

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Maffeis, S., Bischofberger, W. & Mätzel, KU. A generic multicast transport service to support disconnected operation. Wireless Netw 2, 87–96 (1996). https://doi.org/10.1007/BF01201464

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