Address Selection for DMM
draft-liu-dmm-address-selection-02

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Last updated 2015-07-06
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Network Working Group                                           V.Liu
Internet Draft                                                  H.Deng
Intended status: Standards Track                          China Mobile
Expires: Nov 15, 2015                                            D.Liu
                                                              Alibaba
                                                                X.Wei
                                                               Huawei
                                                                J.Liu
                                                                  ZTE
                                                          July 6, 2015

                         Address Selection for DMM
                    draft-liu-dmm-address-selection-02

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   Copyright (c) 2015 IETF Trust and the persons identified as the
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Liu, et al.             Expires Nov 15, 2015                  [Page 1]
Internet-Draft         liu-dmm-address-selection             July 2015

   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.

Abstract

   In DMM scenario, it is possible for the MN to use multiple mobility
   anchor points and corresponding prefixes. In that case, MN needs to
   know the property of the addresses then it can select the optimized
   one for application to use. This document defines new IP network
   prefix types to assist address selection for applications.

Table of Contents

   1. Introduction ................................................ 2
   2. Definition of New Prefix Types                                         ............................... 3
   3. Mobile Node Operation                                ........................................ 3
   4. An Example of How This Draft Works                                             ........................... 3
      4.1. MN Handoffs From MAR to a Next MAR ...................... 3
      4.2. MN Handoffs From MAR Back to Its Previous MAR ........... 5
   5. Security Considerations                                  ...................................... 6
   6. IANA Considerations ......................................... 6
   7. References .................................................. 6
      7.1. Normative References                                    .................................... 6
      7.2. Informative References                                      .................................. 6

1. Introduction

   In DMM scenario, mobility anchors would be deployed in a distributed
   manner, and as specified in RFC7333 [RFC7333], one of the aims of DMM
   is to reduce the routing redundancy between mobile node and
   correspondent node, which means providing a more optimal
   communication path for application traffic between mobile node and
   correspondent node. To achieve routing optimization for specific
   application traffic, the basic idea is to make the traffic using IP
   address(s) anchored at current anchor, so that downlink traffic from
   correspondent node to mobile node will go directly to mobile node.

   Different application sessions could require different IP address
   consistency support from network layer, for example, if the
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