



Network Working Group                                           J. Gould
Internet-Draft                                            VeriSign, Inc.
Intended status: Standards Track                                 T. Tran
Expires: September 3, 2015                                       Neustar
                                                           March 2, 2015


  Change Poll Extension for the Extensible Provisioning Protocol (EPP)
                       draft-gould-change-poll-02

Abstract

   This document describes an Extensible Provisioning Protocol (EPP)
   extension for notifying clients of operations on client sponsored
   objects that were not initiated by the client through EPP.  These
   operations MAY include contractual or policy requirements including
   but not limited to regular batch processes, customer support actions,
   Uniform Domain-Name Dispute-Resolution Policy (UDRP) or Uniform Rapid
   Suspension (URS) actions, court directed actions, and bulk updates
   based on customer requests.  Since the client is not directly
   involved or knowledgable of these operations, the extension is used
   along with an EPP object mapping to provide the resulting state of
   the post-operation object, and optionally a pre-operation object,
   with the operation meta-data of what, when, who, and why.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 3, 2015.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.





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   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
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Conventions Used in This Document . . . . . . . . . . . .   3
   2.  Object Attributes . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Operation . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Who . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  EPP Command Mapping . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  EPP Query Commands  . . . . . . . . . . . . . . . . . . .   4
       3.1.1.  EPP <check> Command . . . . . . . . . . . . . . . . .   5
       3.1.2.  EPP <info> Command  . . . . . . . . . . . . . . . . .   5
       3.1.3.  EPP <transfer> Command  . . . . . . . . . . . . . . .  15
     3.2.  EPP Transform Commands  . . . . . . . . . . . . . . . . .  15
       3.2.1.  EPP <create> Command  . . . . . . . . . . . . . . . .  15
       3.2.2.  EPP <delete> Command  . . . . . . . . . . . . . . . .  15
       3.2.3.  EPP <renew> Command . . . . . . . . . . . . . . . . .  15
       3.2.4.  EPP <transfer> Command  . . . . . . . . . . . . . . .  15
       3.2.5.  EPP <update> Command  . . . . . . . . . . . . . . . .  15
   4.  Formal Syntax . . . . . . . . . . . . . . . . . . . . . . . .  15
     4.1.  Change Poll Extension Schema  . . . . . . . . . . . . . .  16
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  18
     5.1.  XML Namespace . . . . . . . . . . . . . . . . . . . . . .  18
     5.2.  EPP Extension Registry  . . . . . . . . . . . . . . . . .  19
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  19
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .  19
   Appendix A.  Change History . . . . . . . . . . . . . . . . . . .  20
     A.1.  Change from 00 to 01  . . . . . . . . . . . . . . . . . .  20
     A.2.  Change from 01 to 02  . . . . . . . . . . . . . . . . . .  20
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   This document describes an extension mapping for version 1.0 of the
   Extensible Provisioning Protocol (EPP) [RFC5730].  This mapping, an
   extension to EPP object mappings like the EPP domain name mapping
   [RFC5731], is used to notify clients of operations they are not
   directly involved in, on objects that the client sponsors.  It is up



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   to server policy to determine what transform operations and clients
   to notify.  Using this extension clients can more easily keep their
   systems in-sync with the objects stored in the server.  When a change
   occurs that a client needs to be notified of, a poll message can be
   inserted by the server for consumption by the client using the EPP
   <poll> command and response defined in [RFC5730].  The extension
   supports including a "before" operation poll message and an "after"
   operation poll message.

1.1.  Conventions Used in This Document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

   XML is case sensitive.  Unless stated otherwise, XML specifications
   and examples provided in this document MUST be interpreted in the
   character case presented in order to develop a conforming
   implementation.

   In examples, "C:" represents lines sent by a protocol client and "S:"
   represents lines returned by a protocol server.  Indentation and
   white space in examples are provided only to illustrate element
   relationships and are not a REQUIRED feature of this protocol.

   "changePoll-1.0" is used as an abbreviation for
   "urn:ietf:params:xml:ns:changePoll-1.0".  The XML namespace prefix
   "changePoll" is used, but implementations MUST NOT depend on it and
   instead employ a proper namespace-aware XML parser and serializer to
   interpret and output the XML documents.

2.  Object Attributes

   This extension adds additional elements to EPP object mappings like
   the EPP domain name mapping [RFC5731].  Only those new elements are
   described here.

2.1.  Operation

   An operation consists of any transform operation that impacts objects
   that the client sponsers and SHOULD be notified of.  The
   <changePoll:operation> element defines the operation.  The OPTIONAL
   "op" attribute is used to define a sub-operation or the name of a
   "custom" operation.  The enumerated list of <changePoll:operation>
   values include:

   "create"  Create operation as defined in [RFC5730].




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   "delete"  Delete operation as defined in [RFC5730].  If the delete
       operation results in an immediate purge of the object, then the
       "op" attribute MUST be set to "purge".
   "renew"  Renew operation as defined in [RFC5730].
   "transfer"  Transfer operation as defined in [RFC5730] with the
       OPTIONAL "op" attribute defining the transfer type with the
       possible values of "request", "approve", "cancel", and "reject".
   "update"  Update operation as defined in [RFC5730].
   "restore"  Restore operation as defined in [RFC3915] with the
       OPTIONAL "op" attribute defining the restore type with the
       possible values of "request" and "report".
   "autoRenew"  Auto renew operation executed by the server.
   "autoDelete"  Auto delete operation executed by the server.  If the
       "autoDelete" operation results in an immediate purge of the
       object, then the "op" attribute MUST be set to "purge".
   "autoPurge"  Auto purge operation executed by the server when
       removing the object after it had the "pendingDelete" status.
   "custom"  Custom operation that uses the "op" attribute to define the
       custom operation name.

2.2.  Who

   Who defines who executed the operation for audit purposes, and is
   represented using the <changePoll:who> element.  The scheme used for
   the possible set of Who values is up to server policy.  The server
   MAY identify Who based on:

   "Identifier"  Unique user identifier of the user that executed the
       operation.  An example is "ClientX".
   "Name"  Name of the user that executed the operation.  An example is
       "John Doe".
   "Role"  Role of the user that executed operation.  An example is
       "CSR" for a Customer Support Representative or "Batch" for a
       server batch.

3.  EPP Command Mapping

   A detailed description of the EPP syntax and semantics can be found
   in the EPP core protocol specification [RFC5730].

3.1.  EPP Query Commands

   EPP provides three commands to retrieve object information: <check>
   to determine if an object is known to the server, <info> to retrieve
   detailed information associated with an object, and <transfer> to
   retrieve object transfer status information.





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3.1.1.  EPP <check> Command

   This extension does not add any elements to the EPP <check> command
   or <check> response described in the [RFC5730].

3.1.2.  EPP <info> Command

   This extension does not add any elements to the EPP <info> command
   described in the [RFC5730].

   This extension adds transaction detail of the operations to the EPP
   <info> poll response, as described in [RFC5730], of an EPP Object
   Mapping like [RFC5731].  Any transform operation to an object defined
   in an EPP Object Mapping, by a client other than the sponsoring
   client, MAY result in extending the <info> response of the object for
   inserting an EPP poll message with the operation detail.  The
   sponsoring client will then receive the state of the object with
   operation detail like what, who, when, and why the object was
   changed.  The <changePoll:changeData> element contains the operation
   detail along with an indication of whether the object reflects the
   state before or after the operation, using the OPTIONAL "state"
   attribute, with the possible values of "before" or "after", and with
   a default value of "after".  The "state" attribute describes the
   state of the response data or <resData> block returned in the poll
   response.  The server MAY support providing the "before" state and
   "after" state to the operation, by using one poll message for the
   "before" state and one poll message for the "after" state.  When
   using the "before" state poll message, it MUST be inserted prior to
   the "after" state poll message.  The <changePoll:changeData> element
   includes the operation detail with the following child elements:

   <changePoll:operation>  Transform operation executed on the object as
       defined in Section 2.1.
   <changePoll:date>  Date and time when the operation was executed.
   <changePoll:svTRID>  Server transaction identifier of the operation.
   <changePoll:who>  Who executed the operation as defined in
       Section 2.2.
   <changePoll:caseId>  OPTIONAL case identifer associated with the
       operation.  The required "type" attribute defines the type of
       case with an enumerated list of case types including:


       udrp  a Uniform Domain-Name Dispute-Resolution Policy (UDRP)
           case.
       urs a Uniform Rapid Suspension (URS) case.
       custom  A custom case that is defined using the "name" attribute.
   <changePoll:reason>  OPTIONAL reason for executing the operation.  If
       present, this element contains the server-specific text to help



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       explain the reason the operation was executed.  This text MUST be
       represented in the response language previously negotiated with
       the client; an OPTIONAL "lang" attribute MAY be present to
       identify the language if the negotiated value is something other
       than the default value of "en" (English).

   Example poll <info> response with the <changePoll:changeData>
   extension for a URS lock transaction on the domain.example domain
   name, with the "before" state.  The "before" state is reflected in
   the <resData> block:









































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   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:   <response>
   S:      <result code="1301">
   S:         <msg lang="en-US">
   S:       Command completed successfully; ack to dequeue</msg>
   S:      </result>
   S:      <msgQ id="201" count="1">
   S:         <qDate>2013-10-22T14:25:57.0Z</qDate>
   S:         <msg>Registry initiated update of domain.</msg>
   S:      </msgQ>
   S:    <resData>
   S:      <domain:infData
   S:       xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:        <domain:name>domain.example</domain:name>
   S:        <domain:roid>EXAMPLE1-REP</domain:roid>
   S:        <domain:status s="ok"/>
   S:        <domain:registrant>jd1234</domain:registrant>
   S:        <domain:contact type="admin">sh8013</domain:contact>
   S:        <domain:contact type="tech">sh8013</domain:contact>
   S:        <domain:clID>ClientX</domain:clID>
   S:        <domain:crID>ClientY</domain:crID>
   S:        <domain:crDate>2012-04-03T22:00:00.0Z</domain:crDate>
   S:        <domain:exDate>2014-04-03T22:00:00.0Z</domain:exDate>
   S:      </domain:infData>
   S:    </resData>
   S:    <extension>
   S:      <changePoll:changeData
   S:        xmlns:changePoll="urn:ietf:params:xml:ns:changePoll-1.0"
   S:        state="after">
   S:        <changePoll:operation>update</changePoll:operation>
   S:        <changePoll:date>2013-10-22T14:25:57.0Z</changePoll:date>
   S:        <changePoll:svTRID>12345-XYZ</changePoll:svTRID>
   S:        <changePoll:who>URS Admin</changePoll:who>
   S:        <changePoll:caseId type="urs">urs123</changePoll:caseId>
   S:        <changePoll:reason>URS Lock</changePoll:reason>
   S:      </changePoll:changeData>
   S:    </extension>
   S:    <trID>
   S:      <clTRID>ABC-12345</clTRID>
   S:      <svTRID>54321-XYZ</svTRID>
   S:    </trID>
   S:   </response>
   S:</epp>

   Example poll <info> response with the <changePoll:changeData>
   extension for a URS lock transaction on the domain.example domain
   name, with the "after" state.  The "after" state is reflected in the



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   <resData> block:


















































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   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:   <response>
   S:      <result code="1301">
   S:         <msg lang="en-US">
   S:       Command completed successfully; ack to dequeue</msg>
   S:      </result>
   S:      <msgQ id="202" count="1">
   S:         <qDate>2013-10-22T14:25:57.0Z</qDate>
   S:         <msg>Registry initiated update of domain.</msg>
   S:      </msgQ>
   S:    <resData>
   S:      <domain:infData
   S:       xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:        <domain:name>domain.example</domain:name>
   S:        <domain:roid>EXAMPLE1-REP</domain:roid>
   S:        <domain:status s="serverUpdateProhibited"/>
   S:        <domain:status s="serverDeleteProhibited"/>
   S:        <domain:status s="serverTransferProhibited"/>
   S:        <domain:registrant>jd1234</domain:registrant>
   S:        <domain:contact type="admin">sh8013</domain:contact>
   S:        <domain:contact type="tech">sh8013</domain:contact>
   S:        <domain:clID>ClientX</domain:clID>
   S:        <domain:crID>ClientY</domain:crID>
   S:        <domain:crDate>2012-04-03T22:00:00.0Z</domain:crDate>
   S:        <domain:upID>ClientZ</domain:upID>
   S:        <domain:upDate>2013-10-22T14:25:57.0Z</domain:upDate>
   S:        <domain:exDate>2014-04-03T22:00:00.0Z</domain:exDate>
   S:      </domain:infData>
   S:    </resData>
   S:    <extension>
   S:      <changePoll:changeData
   S:        xmlns:changePoll="urn:ietf:params:xml:ns:changePoll-1.0"
   S:        state="after">
   S:        <changePoll:operation>update</changePoll:operation>
   S:        <changePoll:date>2013-10-22T14:25:57.0Z</changePoll:date>
   S:        <changePoll:svTRID>12345-XYZ</changePoll:svTRID>
   S:        <changePoll:who>URS Admin</changePoll:who>
   S:        <changePoll:caseId type="urs">urs123</changePoll:caseId>
   S:        <changePoll:reason>URS Lock</changePoll:reason>
   S:      </changePoll:changeData>
   S:    </extension>
   S:    <trID>
   S:      <clTRID>ABC-12345</clTRID>
   S:      <svTRID>54321-XYZ</svTRID>
   S:    </trID>
   S:   </response>
   S:</epp>



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   Example poll <info> response with the <changePoll:changeData>
   extension for a custom "sync" operation on the domain.example domain
   name, with the default "after" state.  The "after" state is reflected
   in the <resData> block:















































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   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:   <response>
   S:      <result code="1301">
   S:         <msg>Command completed successfully; ack to dequeue</msg>
   S:      </result>
   S:      <msgQ id="201" count="1">
   S:         <qDate>2013-10-22T14:25:57.0Z</qDate>
   S:    <msg>Registry initiated Sync of Domain Expiration Date</msg>
   S:      </msgQ>
   S:    <resData>
   S:      <domain:infData
   S:       xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:        <domain:name>domain.example</domain:name>
   S:        <domain:roid>EXAMPLE1-REP</domain:roid>
   S:        <domain:status s="ok"/>
   S:        <domain:registrant>jd1234</domain:registrant>
   S:        <domain:contact type="admin">sh8013</domain:contact>
   S:        <domain:contact type="tech">sh8013</domain:contact>
   S:        <domain:clID>ClientX</domain:clID>
   S:        <domain:crID>ClientY</domain:crID>
   S:        <domain:crDate>2012-04-03T22:00:00.0Z</domain:crDate>
   S:        <domain:upID>ClientZ</domain:upID>
   S:        <domain:upDate>2013-10-22T14:25:57.0Z</domain:upDate>
   S:        <domain:exDate>2014-04-03T22:00:00.0Z</domain:exDate>
   S:      </domain:infData>
   S:    </resData>
   S:    <extension>
   S:      <changePoll:changeData
   S:        xmlns:changePoll="urn:ietf:params:xml:ns:changePoll-1.0">
   S:        <changePoll:operation op="sync">custom
   S:        </changePoll:operation>
   S:        <changePoll:date>2013-10-22T14:25:57.0Z</changePoll:date>
   S:        <changePoll:svTRID>12345-XYZ</changePoll:svTRID>
   S:        <changePoll:who>CSR</changePoll:who>
   S:        <changePoll:reason lang="en">Customer sync request
   S:        </changePoll:reason>
   S:      </changePoll:changeData>
   S:    </extension>
   S:    <trID>
   S:      <clTRID>ABC-12345</clTRID>
   S:      <svTRID>54321-XYZ</svTRID>
   S:    </trID>
   S:   </response>
   S:</epp>






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   Example poll <info> response with the <changePoll:changeData>
   extension for a "delete" operation on the domain.example domain name
   that is immediately purged, with the default "after" state.  The
   "after" state is reflected in the <resData> block:

   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:   <response>
   S:      <result code="1301">
   S:         <msg>Command completed successfully; ack to dequeue</msg>
   S:      </result>
   S:      <msgQ id="200" count="1">
   S:         <qDate>2013-10-22T14:25:57.0Z</qDate>
   S:         <msg>Registry initiated delete of
   S:         domain resulting in immediate purge.</msg>
   S:      </msgQ>
   S:      <resData>
   S:        <domain:infData
   S:          xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:          <domain:name>domain.example</domain:name>
   S:          <domain:roid>EXAMPLE1-REP</domain:roid>
   S:          <domain:clID>ClientX</domain:clID>
   S:        </domain:infData>
   S:      </resData>
   S:      <extension>
   S:        <changePoll:changeData
   S:          xmlns:changePoll="urn:ietf:params:xml:ns:changePoll-1.0">
   S:          <changePoll:operation op="purge">
   S:            delete</changePoll:operation>
   S:          <changePoll:date>2013-10-22T14:25:57.0Z</changePoll:date>
   S:          <changePoll:svTRID>12345-XYZ</changePoll:svTRID>
   S:          <changePoll:who>ClientZ</changePoll:who>
   S:          <changePoll:reason>Court order</changePoll:reason>
   S:        </changePoll:changeData>
   S:      </extension>
   S:      <trID>
   S:         <clTRID>ABC-12345</clTRID>
   S:         <svTRID>54321-XYZ</svTRID>
   S:      </trID>
   S:   </response>
   S:</epp>










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   Example poll <info> response with the <changePoll:changeData>
   extension for an "autoPurge" operation on the domain.example domain
   name that previously had the "pendingDelete" status, with the default
   "after" state.  The "after" state is reflected in the <resData>
   block:

   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:   <response>
   S:      <result code="1301">
   S:         <msg>Command completed successfully; ack to dequeue</msg>
   S:      </result>
   S:      <msgQ id="200" count="1">
   S:         <qDate>2013-10-22T14:25:57.0Z</qDate>
   S:    <msg>Registry purged domain with pendingDelete status.</msg>
   S:      </msgQ>
   S:      <resData>
   S:        <domain:infData
   S:          xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:          <domain:name>domain.example</domain:name>
   S:          <domain:roid>EXAMPLE1-REP</domain:roid>
   S:          <domain:clID>ClientX</domain:clID>
   S:        </domain:infData>
   S:      </resData>
   S:      <extension>
   S:        <changePoll:changeData
   S:          xmlns:changePoll="urn:ietf:params:xml:ns:changePoll-1.0">
   S:          <changePoll:operation>
   S:            autoPurge</changePoll:operation>
   S:          <changePoll:date>2013-10-22T14:25:57.0Z</changePoll:date>
   S:          <changePoll:svTRID>12345-XYZ</changePoll:svTRID>
   S:          <changePoll:who>Batch</changePoll:who>
   S:          <changePoll:reason>
   S:            Past pendingDelete 5 day period
   S:          </changePoll:reason>
   S:        </changePoll:changeData>
   S:      </extension>
   S:      <trID>
   S:         <clTRID>ABC-12345</clTRID>
   S:         <svTRID>54321-XYZ</svTRID>
   S:      </trID>
   S:   </response>
   S:</epp>








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   Example poll <info> response with the <changePoll:changeData>
   extension for an "update" operation on the ns1.domain.example host,
   with the default "after" state.  The "after" state is reflected in
   the <resData> block:

   S:<?xml version="1.0" encoding="UTF-8"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:   <response>
   S:      <result code="1301">
   S:         <msg>Command completed successfully; ack to dequeue</msg>
   S:      </result>
   S:      <msgQ id="201" count="1">
   S:         <qDate>2013-10-22T14:25:57.0Z</qDate>
   S:         <msg>Registry initiated update of host.</msg>
   S:      </msgQ>
   S:    <resData>
   S:      <host:infData
   S:       xmlns:host="urn:ietf:params:xml:ns:host-1.0">
   S:        <host:name>ns1.domain.example</host:name>
   S:        <host:roid>NS1_EXAMPLE1-REP</host:roid>
   S:        <host:status s="linked"/>
   S:        <host:status s="serverUpdateProhibited"/>
   S:        <host:status s="serverDeleteProhibited"/>
   S:        <host:addr ip="v4">192.0.2.2</host:addr>
   S:        <host:addr ip="v6">1080:0:0:0:8:800:200C:417A</host:addr>
   S:        <host:clID>ClientX</host:clID>
   S:        <host:crID>ClientY</host:crID>
   S:        <host:crDate>2012-04-03T22:00:00.0Z</host:crDate>
   S:        <host:upID>ClientY</host:upID>
   S:        <host:upDate>2013-10-22T14:25:57.0Z</host:upDate>
   S:      </host:infData>
   S:    </resData>
   S:    <extension>
   S:      <changePoll:changeData
   S:        xmlns:changePoll="urn:ietf:params:xml:ns:changePoll-1.0">
   S:        <changePoll:operation>update</changePoll:operation>
   S:        <changePoll:date>2013-10-22T14:25:57.0Z</changePoll:date>
   S:        <changePoll:svTRID>12345-XYZ</changePoll:svTRID>
   S:        <changePoll:who>ClientZ</changePoll:who>
   S:        <changePoll:reason>Host Lock</changePoll:reason>
   S:      </changePoll:changeData>
   S:    </extension>
   S:    <trID>
   S:      <clTRID>ABC-12345</clTRID>
   S:      <svTRID>54321-XYZ</svTRID>
   S:    </trID>
   S:   </response>
   S:</epp>



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3.1.3.  EPP <transfer> Command

   This extension does not add any elements to the EPP <transfer> query
   command or <transfer> response described in the [RFC5730].

3.2.  EPP Transform Commands

   EPP provides five commands to transform objects: <create> to create
   an instance of an object, <delete> to delete an instance of an
   object, <renew> to extend the validity period of an object,
   <transfer> to manage object sponsorship changes, and <update> to
   change information associated with an object.

3.2.1.  EPP <create> Command

   This extension does not add any elements to the EPP <create> command
   or <create> response described in the [RFC5730].

3.2.2.  EPP <delete> Command

   This extension does not add any elements to the EPP <delete> command
   or <delete> response described in the [RFC5730].

3.2.3.  EPP <renew> Command

   This extension does not add any elements to the EPP <renew> command
   or <renew> response described in the [RFC5730].

3.2.4.  EPP <transfer> Command

   This extension does not add any elements to the EPP <transfer>
   command or <transfer> response described in the [RFC5730].

3.2.5.  EPP <update> Command

   This extension does not add any elements to the EPP <update> command
   or <update> response described in the [RFC5730].

4.  Formal Syntax

   One schema is presented here that is the EPP Change Poll Extension
   schema.

   The formal syntax presented here is a complete schema representation
   of the object mapping suitable for automated validation of EPP XML
   instances.  The BEGIN and END tags are not part of the schema; they
   are used to note the beginning and ending of the schema for URI
   registration purposes.



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4.1.  Change Poll Extension Schema

   BEGIN
   <?xml version="1.0" encoding="UTF-8"?>
    <schema targetNamespace="urn:ietf:params:xml:ns:changePoll-1.0"
            xmlns:eppcom="urn:ietf:params:xml:ns:eppcom-1.0"
            xmlns:epp="urn:ietf:params:xml:ns:epp-1.0"
            xmlns:changePoll="urn:ietf:params:xml:ns:changePoll-1.0"
            xmlns="http://www.w3.org/2001/XMLSchema"
            elementFormDefault="qualified">

     <!--
     Import common element types.
     -->
     <import namespace="urn:ietf:params:xml:ns:eppcom-1.0"/>
     <import namespace="urn:ietf:params:xml:ns:epp-1.0"/>


      <annotation>
        <documentation>
          Extensible Provisioning Protocol v1.0
          Change Poll Mapping Schema.
        </documentation>
      </annotation>

      <!--
       Change element.
      -->
      <element name="changeData" type="changePoll:changeDataType"/>

      <!--
       Attributes associated with the change.
      -->
      <complexType name="changeDataType">
        <sequence>
          <element name="operation" type="changePoll:operationType"/>
          <element name="date" type="dateTime"/>
          <element name="svTRID" type="epp:trIDStringType"/>
          <element name="who" type="changePoll:whoType"/>
          <element name="caseId" type="changePoll:caseIdType"
            minOccurs="0"/>
          <element name="reason" type="eppcom:reasonType"
            minOccurs="0"/>
        </sequence>
       <attribute name="state" type="changePoll:stateType"
         default="after"/>
      </complexType>




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      <!--
       Enumerated list of operations, with extensibility via "custom".
      -->
      <simpleType name="operationEnum">
        <restriction base="token">
          <enumeration value="create"/>
          <enumeration value="delete"/>
          <enumeration value="renew"/>
          <enumeration value="transfer"/>
          <enumeration value="update"/>
          <enumeration value="restore"/>
          <enumeration value="autoRenew"/>
          <enumeration value="autoDelete"/>
          <enumeration value="autoPurge"/>
          <enumeration value="custom"/>
        </restriction>
      </simpleType>

      <!--
       Enumerated of state of the object in the poll message.
      -->
      <simpleType name="stateType">
        <restriction base="token">
          <enumeration value="before"/>
          <enumeration value="after"/>
        </restriction>
      </simpleType>

      <!--
       Transform operation type
      -->
     <complexType name="operationType">
       <simpleContent>
         <extension base="changePoll:operationEnum">
           <attribute name="op" type="token"/>
         </extension>
       </simpleContent>
     </complexType>

      <!--
       Case identifier type
      -->
     <complexType name="caseIdType">
       <simpleContent>
         <extension base="token">
           <attribute name="type" type="changePoll:caseTypeEnum"
             use="required"/>
           <attribute name="name" type="token"



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             use="optional"/>
         </extension>
       </simpleContent>
     </complexType>

      <!--
       Enumerated list of case identifier types
      -->
      <simpleType name="caseTypeEnum">
        <restriction base="token">
          <enumeration value="udrp"/>
          <enumeration value="urs"/>
          <enumeration value="custom"/>
        </restriction>
      </simpleType>

      <!--
       Who type
      -->
     <simpleType name="whoType">
       <restriction base="normalizedString">
         <minLength value="1"/>
         <maxLength value="255"/>
       </restriction>
     </simpleType>

    <!--
    End of schema.
    -->
    </schema>
   END

5.  IANA Considerations

5.1.  XML Namespace

   This document uses URNs to describe XML namespaces and XML schemas
   conforming to a registry mechanism described in [RFC3688].  The
   following URI assignment is requested of IANA:

   URI: urn:ietf:params:xml:ns:changePoll-1.0

   Registrant Contact: See the "Author's Address" section of this
   document.

   XML: See the "Formal Syntax" section of this document.





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5.2.  EPP Extension Registry

   The EPP extension described in this document should be registered by
   the IANA in the EPP Extension Registry described in [RFC7451].  The
   details of the registration are as follows:

   Name of Extension: "Change Poll Extension for the Extensible
   Provisioning Protocol (EPP)"

   Document status: Standards Track

   Reference: (insert reference to RFC version of this document)

   Registrant Name and Email Address: IESG, <iesg@ietf.org>

   TLDs: Any

   IPR Disclosure: None

   Status: Active

   Notes: None

6.  Security Considerations

   The mapping extensions described in this document do not provide any
   security services beyond those described by EPP [RFC5730] and
   protocol layers used by EPP.  The security considerations described
   in these other specifications apply to this specification as well.

7.  Acknowledgements

   Special suggestions that have been incorporated into this document
   were provided by Michael Holloway.

8.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC3688]  Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
              January 2004.

   [RFC3915]  Hollenbeck, S., "Domain Registry Grace Period Mapping for
              the Extensible Provisioning Protocol (EPP)", RFC 3915,
              September 2004.





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   [RFC5730]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)",
              STD 69, RFC 5730, August 2009.

   [RFC5731]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)
              Domain Name Mapping", STD 69, RFC 5731, August 2009.

   [RFC7451]  Hollenbeck, S., "Extension Registry for the Extensible
              Provisioning Protocol", RFC 7451, February 2015.

Appendix A.  Change History

A.1.  Change from 00 to 01

   1.  Added an optional caseId element that defines the case identifier
       from UDRP, URS, or custom case, based on feedback from Michael
       Holloway.

A.2.  Change from 01 to 02

   1.  Amended XML Namespace section of IANA Considerations, added EPP
       Extension Registry section.
   2.  Moved Change History to the back section as an Appendix.

Authors' Addresses

   James Gould
   VeriSign, Inc.
   12061 Bluemont Way
   Reston, VA  20190
   US

   Email: jgould@verisign.com
   URI:   http://www.verisigninc.com


   Trung Tran
   Neustar
   21575 Ridgetop Circle
   Sterling, VA  20166
   US

   Email: Trung.Tran@neustar.biz
   URI:   http://www.neustar.biz








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