Domain Suggestion Extension for the Extensible Provisioning Protocol (EPP)
draft-mayrhofer-epp-domain-suggest-00

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REGEXT                                                      A. Mayrhofer
Internet-Draft                                               nic.at GmbH
Intended status: Standards Track                       November 01, 2019
Expires: May 4, 2020

  Domain Suggestion Extension for the Extensible Provisioning Protocol
                                 (EPP)
                 draft-mayrhofer-epp-domain-suggest-00

Abstract

   This document specifies an EPP Extension that allows servers to
   suggest available domain names to clients, for example in cases where
   the originally desired domain name is unavailable for registration.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on May 4, 2020.

Copyright Notice

   Copyright (c) 2019 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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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  Domain Name Suggestion Structure  . . . . . . . . . . . . . .   3
   4.  Client and Server Behaviour . . . . . . . . . . . . . . . . .   3
   5.  EPP Command Mapping . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  EPP <check> Query Command . . . . . . . . . . . . . . . .   4
   6.  Open Questions  . . . . . . . . . . . . . . . . . . . . . . .   5
   7.  Formal Syntax . . . . . . . . . . . . . . . . . . . . . . . .   6
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     9.1.  Namespace . . . . . . . . . . . . . . . . . . . . . . . .   6
     9.2.  XML Schema  . . . . . . . . . . . . . . . . . . . . . . .   6
   10. Changelog . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     10.1.  mayrhofer-epp-domain-suggestion-00 . . . . . . . . . . .   6
   11. Normative References  . . . . . . . . . . . . . . . . . . . .   6
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .   7
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   The Extensible Provisioning Protocol (EPP) [RFC5730] is a client-
   server protocol for provisioning and managing objects in shared
   repositories.  In many cases, EPP is used to provision Domain Names
   between Registrars and Domain Name Registries (see [RFC5731]).

   EPP provides the "check" query command to determine whether an object
   can be provisioned with a registry.  That command is typically used
   to determine whether a certain domain name is available for
   registration at a Domain Name Registry.  In case a requested domain
   name is not available for registration, it is desirable to suggest
   alternative, available names to the client.  However, EPP does
   currently not contain data structures suitable to transport such
   "Domain Suggestions".

   This document specifies a Command-Response level EPP extension for
   the EPP Domain Mapping [RFC5731], allowing servers to include such
   Domain Suggestions in responses to EPP "<domain:check>" commands.

2.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

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   XML is case sensitive.  Unless stated otherwise, XML specifications
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