Validation of Locations Around a Planned Change
draft-ietf-ecrit-lost-planned-changes-00

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Last updated 2017-10-31
Replaces draft-ecrit-lost-planned-changes
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ecrit                                                           B. Rosen
Internet-Draft                                                   Neustar
Intended status: Standards Track                        October 30, 2017
Expires: May 3, 2018

            Validation of Locations Around a Planned Change
                draft-ietf-ecrit-lost-planned-changes-01

Abstract

   This document defines an extension to LoST (RFC5222) that allows a
   planned change to the data in the LoST server to occur.  Records that
   previously were valid will become invalid at a date in the future,
   and new locations will become valid after the date.  The extension
   adds two elements to the <findservice> request: A URI to be used to
   inform the LIS that previously valid locations will be invalid after
   the planned change date, and add a date which requests the server to
   perform validation as of the date specified.  It also adds an
   optional Time-To-Live element to the response, which informs clients
   about the current expected lifetime of the validation.

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 3, 2018.

Copyright Notice

   Copyright (c) 2017 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Rosen                      Expires May 3, 2018                  [Page 1]
Internet-Draft            LoST Planned Changes              October 2017

   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
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
   3.  <plannedChange> element . . . . . . . . . . . . . . . . . . .   4
   4.  <locationInvalidated> object  . . . . . . . . . . . . . . . .   4
   5.  URI Not Stored Warning  . . . . . . . . . . . . . . . . . . .   4
   6.  Time-To-Live (TTL) in Response  . . . . . . . . . . . . . . .   5
   7.  Relax NG Schema . . . . . . . . . . . . . . . . . . . . . . .   5
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
     9.1.  Relax NG Schema Registration  . . . . . . . . . . . . . .   8
     9.2.  LoST Namespace Registration . . . . . . . . . . . . . . .   9
   10. Normative References  . . . . . . . . . . . . . . . . . . . .  10
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   This document describes an update to the LoST protocol [RFC5222]
   which allows a <findservice> request to optionally add a URI and a
   date to be used with planned changes to the underlying location
   information in the server.  The URI is retained by the LoST server,
   associated with the data record that was validated, and used to
   notify the LIS (the LoST client) when a location which was previously
   valid will become invalid.  The date is used by the client to ask the
   server to perform validation as of a future date.  In addition to
   this mechanism, the <findserviceResponse> is also extended to provide
   a Time-To-Live (TTL) for validation, after which the client should
   revalidate the location.

   Validation of civic locations involves dealing with data that changes
   over time.  A typical example is a portion of a county or province
   that was not part of a municipality is "annexed" to a municipality.
   Prior to the change, the content of the PIDF-LO A3 element would be
   blank, or represent some other value and after the change would be
   the municipality that annexed that part of the county/province.  This
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