Dismiss
InnovationQ/InnovationQ Plus content will be updated on Sunday, June 25, 10am ET, with new patent and non-patent literature collections. Click here to learn more.
Browse Prior Art Database

5250 Telnet interface (RFC1205)

IP.com Disclosure Number: IPCOM000002019D
Original Publication Date: 1991-Feb-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 10 page(s) / 25K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Chmielewski: AUTHOR

Abstract

This RFC describes the interface to the IBM 5250 Telnet implementation. The purpose of this memo is to describe the details of the interface so that a person wanting to implement a client Telnet which emulates an IBM 5250 work station would be able to do so. This memo does not describe all of the 5250 commands, aid codes, and other information specific to the 5250 data stream. That information is contained in the IBM 5250 Information Display System, Functions Reference Manual, IBM publication number SA21-9247. Corrections and additions to this manual are documented in this RFC in section 5.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 12% of the total text.

Network Working Group P. Chmielewski

Request for Comments: 1205 IBM Corporation

February 1991

5250 Telnet Interface

Status of this Memo

This RFC is being distributed in order to document the interface to

the IBM 5250 Telnet implementation. This information is being

provided for hosts on the Internet that want to support the 5250 work

station data stream within the Telnet protocol. This memo provides

information for the Internet community. It does not specify any

standard. Distribution of this memo is unlimited.

1. Introduction

This RFC describes the interface to the IBM 5250 Telnet

implementation. The purpose of this memo is to describe the details

of the interface so that a person wanting to implement a client

Telnet which emulates an IBM 5250 work station would be able to do

so. This memo does not describe all of the 5250 commands, aid codes,

and other information specific to the 5250 data stream. That

information is contained in the IBM 5250 Information Display System,

Functions Reference Manual, IBM publication number SA21-9247.

Corrections and additions to this manual are documented in this RFC

in section 5.

2. Telnet Options

No new Telnet options are defined for 5250 mode of operation.

However, to enable 5250 mode, both the client and server must agree

to at least support the Binary, End-Of-Record (EOR), and Terminal-

Type Telnet options. The complete list of 5250 terminal types is

maintained in the Assigned Numbers RFC and includes the following:

IBM-5555-C01 24 x 80 Double-Byte Character Set color display

IBM-5555-B01 24 x 80 Double-Byte Character Set (DBCS)

IBM-3477-FC 27 x 132 color display

IBM-3477-FG 27 x 132 monochrome display

IBM-3180-2 27 x 132 monochrome display

IBM-3179-2 24 x 80 color display

IBM-3196-A1 24 x 80 monochrome display

IBM-5292-2 24 x 80 color display

IBM-5291-1 24 x 80 monochrome display

IBM-5251-11 24 x 80 monochrome display

An example of a typical negotiation process to establish 5250 mode of

operation is shown below. In this example, the server initiates the

negotiation by sending the DO TERMINAL-TYPE request.

Server: IAC DO TERMINAL-TYPE

Client: IAC WILL TERMINAL-TYPE

Server: IAC SB TERMINAL-TYPE SEND IAC SE

Client: IAC SB TERMINAL-TYPE IS IBM-5251-11 IAC SE

(The client has specified its terminal-type is an IBM-5251-11)

Server: IAC DO END-OF-RECORD

Client: IAC WILL END-OF-RECORD

Server: IAC WILL END-OF-RECORD

Client: IAC DO END-OF-RECORD

(The server and client have both agreed to transmit EORs)

Server: IAC DO TRANSMIT-BINARY

Client: IAC WILL TRANSMIT-BINARY

Server: IAC WILL TRANSMIT-BINARY

Client: IAC DO TRANSMIT-BINARY

(The server and client have both agreed to binary transmission)

3. Data Stream ...