RFC 1921 (rfc1921) - Page 1 of 30


TNVIP Protocol



Alternative Format: Original Text Document



Network Working Group                                          J. Dujonc
Request for Comments: 1921                                     Bull S.A.
Category: Informational                                       March 1996


                             TNVIP Protocol

Status of this Memo

   This memo provides information for the Internet community.  This memo
   does not specify an Internet standard of any kind.  Distribution of
   this memo is unlimited.

Abstract

   The goal of this document specifies a Telnet profile to support VIP
   terminal emulation allowing the access to the BULL hosts applications
   through a TCP/IP network.

Table of Contents

    1.       Motivation . . . . . . . . . . . . . . . . . . . . . . 2
    2.       Background . . . . . . . . . . . . . . . . . . . . . . 3
    3.       Telnet Options and Commands Used . . . . . . . . . . . 3
    3.1.      Terminal type option  . . . . . . . . . . . . . . . . 4
    3.1.1.      Subnegotiation of the Terminal Type . . . . . . . . 4
    3.1.2.      Terminal-types supported by the TNVIP protocol  . . 4
    3.1.3.      TNVIP terminal models . . . . . . . . . . . . . . . 5
    3.1.4.      Mailbox name  . . . . . . . . . . . . . . . . . . . 5
    3.2.      End of Record Option  . . . . . . . . . . . . . . . . 6
    3.3.      Binary Transmission option  . . . . . . . . . . . . . 6
    3.4.      Suppress Go Ahead option  . . . . . . . . . . . . . . 7
    4.       TNVIP functions  . . . . . . . . . . . . . . . . . . . 8
    4.1.      TNVIP terminal station  . . . . . . . . . . . . . . . 9
    4.1.1.      Local and online states . . . . . . . . . . . . . . 9
    4.1.2.      Data receiving  . . . . . . . . . . . . . . . . .  10
    4.1.3.      Data sending  . . . . . . . . . . . . . . . . . .  10
    4.2.      TNVIP Server functions  . . . . . . . . . . . . . .  10
    4.2.1.      VIP Terminal Manager  . . . . . . . . . . . . . .  10
    5.       TNVIP Messages Format  . . . . . . . . . . . . . . .  12
    5.1.      Address Field . . . . . . . . . . . . . . . . . . .  12
    5.2.      Command field . . . . . . . . . . . . . . . . . . .  13
    5.3.      Parameter field . . . . . . . . . . . . . . . . . .  14
    6.       The screen flow  . . . . . . . . . . . . . . . . . .  14
    6.1.      Screen data messages  . . . . . . . . . . . . . . .  14
    6.2.      Local state monitoring messages . . . . . . . . . .  15
    6.3.      Screen response messages  . . . . . . . . . . . . .  16
    6.3.1      Page overflow processing . . . . . . . . . . . . .  17



Dujonc                       Informational