Proxy Mobile IPv6 Extensions to Support Flow Mobility
RFC 7864

Document Type RFC - Proposed Standard (May 2016; No errata)
Updates RFC 5213
Last updated 2016-05-09
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Internet Engineering Task Force (IETF)                CJ. Bernardos, Ed.
Request for Comments: 7864                                          UC3M
Updates: 5213                                                   May 2016
Category: Standards Track
ISSN: 2070-1721

         Proxy Mobile IPv6 Extensions to Support Flow Mobility

Abstract

   Proxy Mobile IPv6 (PMIPv6) allows a mobile node to connect to the
   same PMIPv6 domain through different interfaces.  This document
   describes extensions to the PMIPv6 protocol that are required to
   support network-based flow mobility over multiple physical
   interfaces.

   This document updates RFC 5213.  The extensions described in this
   document consist of the operations performed by the local mobility
   anchor and the mobile access gateway to manage the prefixes assigned
   to the different interfaces of the mobile node, as well as how the
   forwarding policies are handled by the network to ensure consistent
   flow mobility management.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7864.

Bernardos                    Standards Track                    [Page 1]
RFC 7864                  PMIPv6 Flow Mobility                  May 2016

Copyright Notice

   Copyright (c) 2016 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
   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.  Overview of the PMIPv6 Flow Mobility Extensions . . . . . . .   4
     3.1.  Use Case Scenarios  . . . . . . . . . . . . . . . . . . .   4
     3.2.  Basic Operation . . . . . . . . . . . . . . . . . . . . .   5
       3.2.1.  MN Sharing a Common Set of Prefixes on All MAGs . . .   6
       3.2.2.  MN with Different Sets of Prefixes on Each MAG  . . .   9
     3.3.  Use of PBU/PBA Signaling  . . . . . . . . . . . . . . . .  11
     3.4.  Use of Flow-Level Information . . . . . . . . . . . . . .  12
   4.  Message Formats . . . . . . . . . . . . . . . . . . . . . . .  12
     4.1.  Home Network Prefix . . . . . . . . . . . . . . . . . . .  13
     4.2.  Flow Mobility Initiate (FMI)  . . . . . . . . . . . . . .  13
     4.3.  Flow Mobility Acknowledgement (FMA) . . . . . . . . . . .  14
   5.  Conceptual Data Structures  . . . . . . . . . . . . . . . . .  14
     5.1.  Multiple Proxy Care-of Address Registration . . . . . . .  14
     5.2.  Flow Mobility Cache (FMC) . . . . . . . . . . . . . . . .  15
   6.  Mobile Node Considerations  . . . . . . . . . . . . . . . . .  16
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  17
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  17
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  18
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  18
   Contributors  . . . . . . . . . . . . . . . . . . . . . . . . . .  19
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  19

Bernardos                    Standards Track                    [Page 2]
RFC 7864                  PMIPv6 Flow Mobility                  May 2016

1.  Introduction

   Proxy Mobile IPv6 (PMIPv6), specified in [RFC5213], provides network-
   based mobility management to hosts connecting to a PMIPv6 domain.
   PMIPv6 introduces two new functional entities, the Local Mobility
   Anchor (LMA) and the Mobile Access Gateway (MAG).  The MAG is the
   entity detecting the Mobile Node's (MN's) attachment and providing IP
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