Distributed Mobility Anchoring
draft-chan-dmm-distributed-mobility-anchoring-06

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Replaced by draft-ietf-dmm-distributed-mobility-anchoring
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DMM                                                              H. Chan
Internet-Draft                                                    X. Wei
Intended status: Informational                       Huawei Technologies
Expires: May 5, 2016                                              J. Lee
                                                    Sangmyung University
                                                                 S. Jeon
                                           Instituto de Telecomunicacoes
                                                              F. Templin
                                          Boeing Research and Technology
                                                        November 2, 2015

                     Distributed Mobility Anchoring
            draft-chan-dmm-distributed-mobility-anchoring-06

Abstract

   This document defines the solution for mid-session switching of the
   IP prefix anchor with distributed mobility anchoring.  Without
   ongoing session requiring session continuity, the IP prefix anchor
   can be moved to a new network of attachment by using the new IP
   prefix allocated from the new network.  With ongoing session, the
   anchoring of the prior IP prefix may be relocated to the new network
   to enable session continuity.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on May 5, 2016.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Chan, et al.               Expires May 5, 2016                  [Page 1]
Internet-Draft          mobility anchor switching          November 2015

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions and Terminology . . . . . . . . . . . . . . . . .   3
   3.  IP prefix/address anchored in current network of attachment .   4
     3.1.  Changing to the new IP prefix/address . . . . . . . . . .   5
     3.2.  IP prefix/address anchor switching to the new network . .   8
       3.2.1.  Centralized control plane . . . . . . . . . . . . . .   9
       3.2.2.  Hierarchical network  . . . . . . . . . . . . . . . .  12
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   6.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  14
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   A key requirement in distributed mobility management [RFC7333] is to
   enable traffic to avoid traversing single mobility anchor far from
   the optimal route.  Recall that distributed mobility management
   solutions do not make use of centrally deployed mobility anchor
   [Paper-Distributed.Mobility].  As such, a flow SHOULD be able to have
   its traffic changing from traversing one mobility anchor to
   traversing another mobility anchor as the mobile node moves, or when
   changing operation and management requirements call for mobility
   anchor switching, thus avoiding non-optimal routes.  This draft
   proposes distributed mobility anchoring solutions.

   The needs of IP-layer mobility support are diverse so that the use of
   distributed anchoring may differ according to the needs.

   A mobile node (MN) may be running a flow with its correspondent node
   (CN) for which the source IP address of this flow belongs to MN's
   network.  That is, it is anchored to an access router (anchor)
   belonging to MN's network.  When there are multiple anchors, the flow
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