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Terminal device session management protocol

  • US 4,791,566 A
  • Filed: 03/27/1987
  • Issued: 12/13/1988
  • Est. Priority Date: 03/27/1987
  • Status: Expired due to Fees
First Claim
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1. A session management link for interconnecting a host system having at least one application process to a terminal system having at least one virtual terminal, thereby to effect the transmission of information between a selected virtual terminal and a selected application process, said link including:

  • A. communications link means between said host and terminal systems for transferring information therebetween;

    B. host system session management facility means connected between said application processes and said communications link for transmitting information from said application processes over said communications link, and for generating a plurality of terminal session management commands and transmitting said terminal session management commands over said communications link, one type of said terminal session management command comprising a terminal select session command, each said terminal select session commands identifying a selected interconnection to a virtual terminal; and

    C. terminal system session management facility means connected between said communications link and said virtual terminals for receiving said information and said terminal session management commands transmitted from host system session management facility over said communications link, and continually directing to the selected virtual terminal all said information sent after a terminal select session command is received until a next different terminal select session command is received, so that a single terminal select session command directs all of said following information received by said terminal system session management facility means to the selected virtual terminal until said next different terminal select session command for directing said information to a different selected virtual terminal is received.

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