Extension Registry for the Extensible Provisioning Protocol
RFC 7451

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Internet Engineering Task Force (IETF)                     S. Hollenbeck
Request for Comments: 7451                                 Verisign Labs
Category: Informational                                    February 2015
ISSN: 2070-1721

      Extension Registry for the Extensible Provisioning Protocol

Abstract

   The Extensible Provisioning Protocol (EPP) includes features to add
   functionality by extending the protocol.  It does not, however,
   describe how those extensions are managed.  This document describes a
   procedure for the registration and management of extensions to EPP,
   and it specifies a format for an IANA registry to record those
   extensions.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see 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/rfc7451.

Copyright Notice

   Copyright (c) 2015 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
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   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.

Hollenbeck                    Informational                     [Page 1]
RFC 7451                 EPP Extension Registry            February 2015

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Extension Specification and Registration Procedure  . . . . .   3
     2.1.  Extension Specification . . . . . . . . . . . . . . . . .   3
       2.1.1.  Designated Expert Evaluation Criteria . . . . . . . .   3
     2.2.  Registration Procedure  . . . . . . . . . . . . . . . . .   4
       2.2.1.  Required Information  . . . . . . . . . . . . . . . .   4
       2.2.2.  Registration Form . . . . . . . . . . . . . . . . . .   6
       2.2.3.  Registration Processing . . . . . . . . . . . . . . .   8
       2.2.4.  Updating Registry Entries . . . . . . . . . . . . . .   8
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     5.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     5.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . .  12
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   Domain name registries implement a variety of operational and
   business models.  The differences in these models make it impossible
   to develop a "one size fits all" provisioning protocol; the
   Extensible Provisioning Protocol [RFC5730] was designed to focus on a
   minimal set of common functionality with built-in extension
   capabilities that allow new features to be specified on an "as
   needed" basis.  Guidelines for extending EPP are documented in RFC
   3735 [RFC3735].

   RFCs 3735 and 5730 do not describe how extension development can be
   managed and coordinated.  This has led to a situation in which server
   operators can develop different extensions to address similar needs,
   such as the provisioning of Value Added Tax (VAT) information.
   Clients then need to support multiple extensions that serve similar
   purposes, and interoperability suffers as a result.

   An IANA registry can be used to help manage and coordinate the
   development of protocol extensions.  This document describes an IANA
   registry that will be used to coordinate the development of EPP
   extensions.

Hollenbeck                    Informational                     [Page 2]
RFC 7451                 EPP Extension Registry            February 2015

2.  Extension Specification and Registration Procedure

   This section describes the format of an IANA registry and the
   procedures used to populate and manage registry entries.

2.1.  Extension Specification

   This registry uses the "Specification Required" policy described in
   RFC 5226 [RFC5226].  An English language version of the extension