Distributed Mobility Anchoring
draft-ietf-dmm-distributed-mobility-anchoring-02

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Document Type Active Internet-Draft (dmm WG)
Last updated 2016-11-13 (latest revision 2016-09-24)
Replaces draft-chan-dmm-distributed-mobility-anchoring
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DMM                                                         H. Chan, Ed.
Internet-Draft                                                    X. Wei
Intended status: Informational                       Huawei Technologies
Expires: March 27, 2017                                           J. Lee
                                                    Sangmyung University
                                                                 S. Jeon
                                                 Sungkyunkwan University
                                                             A. Petrescu
                                                               CEA, LIST
                                                              F. Templin
                                          Boeing Research and Technology
                                                      September 23, 2016

                     Distributed Mobility Anchoring
            draft-ietf-dmm-distributed-mobility-anchoring-02

Abstract

   This document defines distributed mobility anchoring to meet diverse
   mobility needs in 5G Wireless and beyond.  Multiple anchors and nodes
   with mobility functions work together to provide IP mobility support.
   A network or network slice may be configured with distributed
   mobility anchoring depending on the needs of mobility support.  In
   the distributed mobility anchoring environment, multiple anchors are
   available for mid-session switching of an IP prefix anchor.  Without
   an ongoing session, i.e., no IP session continuity required, a flow
   of a mobile node can be re-started using a new IP prefix which is
   allocated from a new network of the mobile node and is therefore
   anchored to the new network.  With an ongoing session, the anchoring
   of the prior IP prefix may be relocated to the new network to enable
   IP session continuity.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

Chan, et al.             Expires March 27, 2017                 [Page 1]
Internet-Draft       distributed mobility anchoring       September 2016

   This Internet-Draft will expire on March 27, 2017.

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
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   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.  Conventions and Terminology . . . . . . . . . . . . . . . . .   4
   3.  Distributed Mobility Anchoring  . . . . . . . . . . . . . . .   6
     3.1.  Configurations for Different Networks or Network Slices .   6
       3.1.1.  Network-based Mobility Support for a Flat Network . .   7
       3.1.2.  Network-based Mobility Support for a Hierarchical
               Network . . . . . . . . . . . . . . . . . . . . . . .   8
       3.1.3.  Host-based Mobility Support . . . . . . . . . . . . .  11
       3.1.4.  NEtwork MObility (NEMO) Basic Support . . . . . . . .  13
     3.2.  Operations and Parameters . . . . . . . . . . . . . . . .  15
       3.2.1.  Location Management . . . . . . . . . . . . . . . . .  16
       3.2.2.  Forwarding Management . . . . . . . . . . . . . . . .  18
   4.  IP Mobility Handling in Distributed Anchoring Environments -
       Mobility Support Only When Needed . . . . . . . . . . . . . .  24
     4.1.  No Need of IP Mobility: Changing to New IP Prefix/Address  25
       4.1.1.  Guidelines for IPv6 Nodes: Changing to New IP
               Prefix/Address  . . . . . . . . . . . . . . . . . . .  27
     4.2.  Need of IP Mobility . . . . . . . . . . . . . . . . . . .  28
       4.2.1.  Guidelines for IPv6 Nodes: Need of IP Mobility  . . .  30
   5.  IP Mobility Handling in Distributed Mobility Anchoring
       Environments - Anchor Switching to the New Network  . . . . .  31
     5.1.  IP Prefix/Address Anchor Switching for Flat Network . . .  31
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