RFC 1646 (rfc1646) - Page 1 of 13

TN3270 Extensions for LUname and Printer Selection

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Network Working Group                                         C. Graves
Request for Comments: 1646                                     T. Butts
Category: Informational                                        M. Angel
                                                   Open Connect Systems
                                                              July 1994


           TN3270 Extensions for LUname and Printer Selection

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

   This document describes protocol extensions to TN3270.  There are two
   extensions outlined in this document.  The first defines a way by
   which a TN3270 client can request a specific device (LUname) from a
   TN3270 server.  The second extension specifies how a TN3270 printer
   device can be requested by a TN3270 client and the manner in which
   the 3270 printer status information can be sent to the TN3270 server.
   Discussions and suggestions for improvements to these enhancements
   should be sent to the TN3270E Working Group mailing list
    . These extensions will be called TN3287 in this
   document.  This information is being provided to members of the
   Internet community that want to support the 3287 data stream within
   the TELNET protocol.

1. INTRODUCTION

   The need to communicate with IBM mainframe systems has a number of
   unique requirements associated with it.  This document addresses
   those needs in a TCP/IP communications network.

   IBM terminals are generically referred to as 3270's which includes a
   broad range of terminals and devices,not all of which actually begin
   with the numbers 327x.

   The 3270 family of terminals and the IBM mainframe applications
   systems are VERY closely coupled and it is the nature of the way the
   3270s and the applications interact which require that this document
   be available to provide a consistent way for the TCP/IP environment
   to interact effectively with the 3270 applications of the IBM
   mainframe world.





Graves, Butts & Angel
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