Fast Handovers for Proxy Mobile IPv6
RFC 5949

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Internet Engineering Task Force (IETF)                         H. Yokota
Request for Comments: 5949                                      KDDI Lab
Category: Standards Track                                   K. Chowdhury
ISSN: 2070-1721                                                R. Koodli
                                                           Cisco Systems
                                                                B. Patil
                                                                   Nokia
                                                                  F. Xia
                                                              Huawei USA
                                                          September 2010

                  Fast Handovers for Proxy Mobile IPv6

Abstract

   Mobile IPv6 (MIPv6; RFC 3775) provides a mobile node with IP mobility
   when it performs a handover from one access router to another, and
   fast handovers for Mobile IPv6 (FMIPv6) are specified to enhance the
   handover performance in terms of latency and packet loss.  While
   MIPv6 (and FMIPv6 as well) requires the participation of the mobile
   node in the mobility-related signaling, Proxy Mobile IPv6 (PMIPv6;
   RFC 5213) provides IP mobility to nodes that either have or do not
   have MIPv6 functionality without such involvement.  Nevertheless, the
   basic performance of PMIPv6 in terms of handover latency and packet
   loss is considered no different from that of MIPv6.

   When the fast handover is considered in such an environment, several
   modifications are needed to FMIPv6 to adapt to the network-based
   mobility management.  This document specifies the usage of fast
   handovers for Mobile IPv6 (FMIPv6; RFC 5568) when Proxy Mobile IPv6
   is used as the mobility management protocol.  Necessary extensions
   are specified for FMIPv6 to support the scenario when the mobile node
   does not have IP mobility functionality and hence is not involved
   with either MIPv6 or FMIPv6 operations.

Yokota, et al.               Standards Track                    [Page 1]
RFC 5949                Proxy-Based Fast Handover         September 2010

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/rfc5949.

Copyright Notice

   Copyright (c) 2010 IETF Trust and the persons identified as the
   document authors.  All rights reserved.  This document is subject to
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   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
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   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
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   it for publication as an RFC or to translate it into languages other
   than English.

Yokota, et al.               Standards Track                    [Page 2]
RFC 5949                Proxy-Based Fast Handover         September 2010

Table of Contents

   1. Introduction ....................................................3
   2. Requirements Notation ...........................................4
   3. Terminology .....................................................4
   4. Proxy-Based FMIPv6 Protocol Overview ............................5
      4.1. Protocol Operation .........................................7
      4.2. Inter-AR Tunneling Operation ..............................14
      4.3. IPv4 Support Considerations ...............................16
   5. PMIPv6-Related Fast Handover Issues ............................16
      5.1. Manageability Considerations ..............................16