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