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Runtime Local Mobility Anchor (LMA) Assignment Support for Proxy Mobile IPv6
RFC 6463

Internet Engineering Task Force (IETF)                  J. Korhonen, Ed.
Request for Comments: 6463                        Nokia Siemens Networks
Category: Standards Track                                  S. Gundavelli
ISSN: 2070-1721                                                    Cisco
                                                               H. Yokota
                                                                KDDI Lab
                                                                  X. Cui
                                                     Huawei Technologies
                                                           February 2012

         Runtime Local Mobility Anchor (LMA) Assignment Support
                         for Proxy Mobile IPv6

Abstract

   This document describes a runtime local mobility anchor assignment
   functionality and corresponding mobility options for Proxy Mobile
   IPv6.  The runtime local mobility anchor assignment takes place
   during a Proxy Binding Update and a Proxy Binding Acknowledgement
   message exchange between a mobile access gateway and a local mobility
   anchor.  The runtime local mobility anchor assignment functionality
   defined in this specification can be used, for example, for load-
   balancing purposes.

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/rfc6463.

Korhonen, et al.             Standards Track                    [Page 1]
RFC 6463                 Runtime LMA Assignment            February 2012

Copyright Notice

   Copyright (c) 2012 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.  Requirements and Terminology . . . . . . . . . . . . . . . . .  4
     2.1.  Requirements . . . . . . . . . . . . . . . . . . . . . . .  4
     2.2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Proxy Mobile IPv6 Domain Assumptions . . . . . . . . . . . . .  5
   4.  Mobility Options . . . . . . . . . . . . . . . . . . . . . . .  5
     4.1.  Redirect-Capability Mobility Option  . . . . . . . . . . .  5
     4.2.  Redirect Mobility Option . . . . . . . . . . . . . . . . .  6
     4.3.  Load Information Mobility Option . . . . . . . . . . . . .  7
     4.4.  Alternate IPv4 Care-of Address Mobility Option . . . . . .  9
   5.  Runtime LMA Assignment . . . . . . . . . . . . . . . . . . . .  9
     5.1.  General Operation  . . . . . . . . . . . . . . . . . . . .  9
     5.2.  Mobile Access Gateway Operation  . . . . . . . . . . . . . 10
     5.3.  Local Mobility Anchor Operation  . . . . . . . . . . . . . 12
       5.3.1.  Co-Located rfLMA and r2LMA Functions . . . . . . . . . 13
       5.3.2.  Separate rfLMA and r2LMA Functions (Proxy-MAG) . . . . 14
   6.  Handoff and Multi-Homing Considerations  . . . . . . . . . . . 18
   7.  Protocol Configuration Variables . . . . . . . . . . . . . . . 18
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 19
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 20
   10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 20
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 20
     11.1. Normative References . . . . . . . . . . . . . . . . . . . 20
     11.2. Informative References . . . . . . . . . . . . . . . . . . 20

Korhonen, et al.             Standards Track                    [Page 2]
RFC 6463                 Runtime LMA Assignment            February 2012

1.  Introduction

   This specification describes a runtime assignment of a local mobility
   anchor (LMA) for the Proxy Mobile IPv6 (PMIPv6) [RFC5213] protocol.

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