A Routing Request Extension for the HELD Protocol
draft-ietf-ecrit-held-routing-00

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Document Type Active Internet-Draft (ecrit WG)
Authors James Winterbottom  , Hannes Tschofenig  , Laura Liess 
Last updated 2014-12-23
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ECRIT                                                    J. Winterbottom
Internet-Draft                               Winterb Consulting Services
Updates: RFC6881, RFC5985                                  H. Tschofenig
(if approved)
Intended status: Standards Track                                L. Liess
Expires: June 25, 2015                                  Deutsche Telekom
                                                       December 22, 2014

           A Routing Request Extension for the HELD Protocol
                  draft-ietf-ecrit-held-routing-00.txt

Abstract

   In many circumstances public LoST servers or a distributed network of
   forest guides linking public LoST servers is not available.  In such
   environments the general ECRIT calling models breakdown.  However,
   location servers operating in these areas are often privy to the
   necessary information to reach emergency and other services.  This
   document describes a solution where by the routing information may be
   obtained from a location server using a simple extension to the HELD
   protocol.

Status of this Memo

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

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   This Internet-Draft will expire on June 25, 2015.

Copyright Notice

   Copyright (c) 2014 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

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   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 . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Motivation . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  Mechanism  . . . . . . . . . . . . . . . . . . . . . . . . . .  6
   5.  HELD Schema Extension  . . . . . . . . . . . . . . . . . . . .  8
   6.  Examples . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
   7.  Privacy Considerations . . . . . . . . . . . . . . . . . . . . 10
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 10
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 11
     9.1.  URN sub-namespace registration for
           'urn:ietf:params:xml:ns:geopriv:held:ri' . . . . . . . . . 11
     9.2.  XML Schema Registration  . . . . . . . . . . . . . . . . . 11
   10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 12
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 12
     11.1. Normative References . . . . . . . . . . . . . . . . . . . 12
     11.2. Informative References . . . . . . . . . . . . . . . . . . 12
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 13

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1.  Introduction

   In many circumstances public LoST [RFC5222] servers or a distributed
   network of forest guides linking public LoST servers is not
   available.  In such environments the general ECRIT calling models
   breakdown.  Location servers operating in these areas are often privy
   to the necessary information to reach emergency and other services.
   This document describes how adding an extension to the HELD protocol
   [RFC5985] can used to extract this information for a location
   information server in the absence of a LoST server or network of
   forest guides.

2.  Terminology

   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 [RFC2119].

   The terms LIS, ESRP, VSP and PSAP are used as defined in [RFC6443].

   The term "Access Network Provider" is used as defined in [RFC5687]
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