The 'tn3270' URI Scheme
RFC 6270

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Internet Engineering Task Force (IETF)                    M. Yevstifeyev
Request for Comments: 6270                                     June 2011
Updates: 1041, 1738, 2355
Category: Standards Track
ISSN: 2070-1721

                        The 'tn3270' URI Scheme

Abstract

   This document is the specification of the 'tn3270' Uniform Resource
   Identifier (URI) scheme, which is used to designate the access to the
   resources available via Telnet 3270 mode (TN3270) and Telnet 3270
   Enhanced mode (TN3270E).  It updates RFC 1041 and RFC 2355, which
   specify these protocols, and RFC 1738, which firstly mentioned this
   URI scheme without defining its syntax and semantics.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6270.

Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Yevstifeyev                  Standards Track                    [Page 1]
RFC 6270                 The 'tn3270' URI Scheme               June 2011

Table of Contents

   1. Introduction ....................................................2
      1.1. Terminology ................................................3
   2. URI Scheme Definition ...........................................3
      2.1. URI Scheme Syntax ..........................................3
      2.2. URI Scheme Semantics .......................................3
   3. Security Considerations .........................................3
   4. IANA Considerations .............................................4
   5. References ......................................................4
      5.1. Normative References .......................................4
      5.2. Informative References .....................................5
   Appendix A. Acknowledgments ........................................6

1.  Introduction

   This document specifies the 'tn3270' Uniform Resource Identifier
   (URI) scheme, which is used to designate the access to the resources
   available via Telnet 3270 mode (TN3270) and Telnet 3270 Enhanced mode
   (TN3270E).

   Telnet 3270 mode (TN3270) is a name used to denote the special mode
   of Telnet session [RFC0854].  If it is used, the 3270 data stream
   [GA23-0059] is used when transmitting data during the Telnet session,
   whereas the Telnet 3270 Regime option [RFC1041] is used to enable and
   negotiate its use.  (See [RFC1576] for some other background
   information on TN3270.)  Telnet 3270 Enhanced mode (TN3270E) has a
   similar principle; see RFC 2355 [RFC2355] for its specification.

   The 'tn3270' URI scheme was firstly mentioned in RFC 1738 [RFC1738]
   as used in URIs that designate the access to "Interactive 3270
   emulation sessions".  Following the creation of the URI schemes
   registry per RFC 4395 [RFC4395], this scheme was added to the
   "Provisional URI Schemes" sub-registry in the "Uniform Resource
   Identifier (URI) Schemes" IANA registry [URIREG].  However, RFC 1738
   [RFC1738] does not give any definition of syntax or semantics of the
   'tn3270' URIs and does not have any guidelines for registration of
   this scheme.

   Since there is no acceptable specification of the 'tn3270' URI, there
   is a risk that somebody might try to implement it with some new,
   possibly undocumented, syntax, just by looking at the IANA registry.
   In order to minimize such risk, this document gives a precise
   definition of syntax, semantics, use of this URI, and it registers
   the corresponding scheme.  It also updates RFC 2355 [RFC2355], RFC
   1738 [RFC1738], and RFC 1041 [RFC1041].

Yevstifeyev                  Standards Track                    [Page 2]
RFC 6270                 The 'tn3270' URI Scheme               June 2011

   The generic syntax of URIs is described in RFC 3986 [RFC3986].
   Registration procedures for new URI schemes are defined in RFC 4395