@techreport{loreto-design-space-bidirectional-00,
    number =    {draft-loreto-design-space-bidirectional-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-loreto-design-space-bidirectional/00/},
    author =    {Salvatore Loreto and Peter Saint-Andre and Greg Wilkins and Stefano Salsano},
    title =     {{Design Space for Bidirectional protocols}},
    pagetotal = 8,
    year =      2009,
    month =     oct,
    day =       19,
    abstract =  {As technologies that enable bidirectional communication over HTTP have become more pervasive, interest has grown in (1) defining improved mechanisms for support of existing technologies (short-term solutions such as new HTTP headers) and (2) laying the foundation for development of new bidirectional protocols (long-term solutions such as WebSocket, Bidirectional Web Transfer Protocol, and Reverse HTTP). In order to provide context for such work, this document provides a first tentative map of the design space for bidirectional HTTP, with special attention to deployed infrastructure (e.g. web clients, intermediaries, firewalls, NATs, web servers) and programming environments.},
}