Distributed Mobility Anchoring
draft-ietf-dmm-distributed-mobility-anchoring-01

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Document Type Active Internet-Draft (dmm WG)
Last updated 2016-09-08
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 12, 2017                                           J. Lee
                                                    Sangmyung University
                                                                 S. Jeon
                                                 Sungkyunkwan University
                                                             A. Petrescu
                                                               CEA, LIST
                                                              F. Templin
                                          Boeing Research and Technology
                                                       September 8, 2016

                     Distributed Mobility Anchoring
            draft-ietf-dmm-distributed-mobility-anchoring-01

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 with the needed behaviors 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 ongoing session requiring session
   continuity, a flow can be re-started using a new IP prefix which is
   allocated from the new network and is therefore anchored to 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
   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
   and may be updated, replaced, or obsoleted by other documents at any
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on March 12, 2017.

Chan, et al.             Expires March 12, 2017                 [Page 1]
Internet-Draft       distributed mobility anchoring       September 2016

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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions and Terminology . . . . . . . . . . . . . . . . .   4
   3.  Distributed Mobility Anchoring  . . . . . . . . . . . . . . .   6
     3.1.  Distributed Anchoring Configurations for Different
           Networks or Network Slices  . . . . . . . . . . . . . . .   6
       3.1.1.  Distributed Anchoring with Network-based Mobility
               Support for Flat Network  . . . . . . . . . . . . . .   7
       3.1.2.  Distributed Anchoring with Network-based Mobility
               Support for Hierarchical Network  . . . . . . . . . .   8
       3.1.3.  Distributed Anchoring for Host-based Mobility Support  11
     3.2.  Distributed Anchoring Behaviors and Mobility Message
           Parameters  . . . . . . . . . . . . . . . . . . . . . . .  13
       3.2.1.  Location Management Behaviors and Mobility Message
               Parameters  . . . . . . . . . . . . . . . . . . . . .  13
       3.2.2.  Forwarding Management Behaviors and Mobility Message
               Parameters  . . . . . . . . . . . . . . . . . . . . .  16
   4.  IP Mobility Handling in Distributed Anchoring Environments -
       Mobility Support Only When Needed . . . . . . . . . . . . . .  21
     4.1.  No Need of IP Mobility: Changing to New IP Prefix/Address  22
       4.1.1.  Guidelines for IPv6 Nodes: Changing to New IP
               Prefix/Address  . . . . . . . . . . . . . . . . . . .  24
     4.2.  Need of IP Mobility . . . . . . . . . . . . . . . . . . .  26
       4.2.1.  Guidelines for IPv6 Nodes: Need of IP Mobility  . . .  27
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