Update Notifications for Proxy Mobile IPv6
draft-ietf-netext-update-notifications-01

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Document Type Active Internet-Draft (netext WG)
Authors Suresh Krishnan  , Sri Gundavelli  , Marco Liebsch  , Hidetoshi Yokota  , Jouni Korhonen 
Last updated 2013-03-14
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Netext WG                                                    S. Krishnan
Internet-Draft                                                  Ericsson
Intended status: Standards Track                           S. Gundavelli
Expires: September 15, 2013                                        Cisco
                                                              M. Liebsch
                                                                     NEC
                                                               H. Yokota
                                                                    KDDI
                                                             J. Korhonen
                                                  Nokia Siemens Networks
                                                          March 14, 2013

               Update Notifications for Proxy Mobile IPv6
               draft-ietf-netext-update-notifications-01

Abstract

   Proxy Mobile IPv6 (PMIPv6) is a network based mobility management
   protocol that enables IP mobility for a host without requiring its
   participation in any mobility-related signaling.  This document
   proposes a mechanism for the Local Mobility Anchor to asynchronously
   notify the Mobile Access Gateway about changes related to the
   mobility session.

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 15, 2013.

Copyright Notice

   Copyright (c) 2013 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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   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  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Example use case: LMA-requested re-registration . . . . . . . . 3
   3.  LMA Behavior  . . . . . . . . . . . . . . . . . . . . . . . . . 4
   4.  MAG Behavior  . . . . . . . . . . . . . . . . . . . . . . . . . 4
   5.  Message Formats . . . . . . . . . . . . . . . . . . . . . . . . 5
     5.1.  Update Notification(UPN)  . . . . . . . . . . . . . . . . . 5
     5.2.  Update Notification Acknowledgement(UPA)  . . . . . . . . . 5
   6.  Security Considerations . . . . . . . . . . . . . . . . . . . . 6
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 7
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 7
     9.1.  Normative References  . . . . . . . . . . . . . . . . . . . 7
     9.2.  Informative References  . . . . . . . . . . . . . . . . . . 7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 7

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1.  Introduction

   Proxy Mobile IPv6 [RFC5213] describes the protocol operations to
   maintain reachability and session persistence for a Mobile Node (MN)
   without the explicit participation from the MN in signaling
   operations at the Internet Protocol (IP) layer.  In order to
   facilitate such network-based mobility, the PMIPv6 protocol defines a
   Mobile Access Gateway (MAG), which acts as a proxy for the Mobile
   IPv6 [RFC6275] signaling, and the Local Mobility Anchor (LMA) which
   acts similar to a Home Agent.  The setup of the mobility session is
   initiated by the MAG by sending a PBU message and confirmed by the
   LMA in the PBA message.  Once the mobility session is set up for a
   given lifetime, the LMA has no mechanism to inform the MAG about
   changes to the mobility session or any parameters related to the
   mobility session.

   One such scenario where such a mechanism is needed is when the LMA
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