Distributed Mobility Anchoring
draft-ietf-dmm-distributed-mobility-anchoring-00

The information below is for an old version of the document
Document Type Active Internet-Draft (dmm WG)
Last updated 2016-08-30
Replaces draft-chan-dmm-distributed-mobility-anchoring
Stream IETF
Intended RFC status Informational
Formats plain text pdf html bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state I-D Exists
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)
DMM                                                              H. Chan
Internet-Draft                                                    X. Wei
Intended status: Informational                       Huawei Technologies
Expires: March 2, 2017                                            J. Lee
                                                    Sangmyung University
                                                                 S. Jeon
                                                 Sungkyunkwan University
                                                              F. Templin
                                          Boeing Research and Technology
                                                         August 29, 2016

                     Distributed Mobility Anchoring
            draft-ietf-dmm-distributed-mobility-anchoring-00

Abstract

   This document defines distributed mobility anchoring.  Multiple
   anchors and nodes are configured with appropriate mobility functions
   and work together to enable mobility solutions.  Example solution is
   mid-session switching of the IP prefix anchor.  Without ongoing
   session requiring session continuity, a flow can be started or re-
   started using the 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
   working documents as Internet-Drafts.  The list of current Internet-
   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
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on March 2, 2017.

Chan, et al.              Expires March 2, 2017                 [Page 1]
Internet-Draft          mobility anchor switching            August 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
   (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.  Code Components extracted from this document must
   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions and Terminology . . . . . . . . . . . . . . . . .   3
   3.  Distributed anchoring . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Distributed anchoring configurations  . . . . . . . . . .   5
     3.2.  Distributed anchoring behaviors and message information
           elements  . . . . . . . . . . . . . . . . . . . . . . . .   8
       3.2.1.  Location management behaviors and message information
               elements  . . . . . . . . . . . . . . . . . . . . . .   9
       3.2.2.  Forwarding management behaviors and message
               information elements  . . . . . . . . . . . . . . . .  10
   4.  Example mobility solutions with distributed anchoring . . . .  12
     4.1.  IP mobility support only when needed  . . . . . . . . . .  12
       4.1.1.  Not needed: Changing to the new IP prefix/address . .  13
       4.1.2.  Needed: Providing IP mobility support . . . . . . . .  14
     4.2.  IP prefix/address anchor switching to the new network . .  16
       4.2.1.  Centralized control plane . . . . . . . . . . . . . .  17
       4.2.2.  Hierarchical network  . . . . . . . . . . . . . . . .  20
       4.2.3.  Hierarchical network with anchoring change  . . . . .  22
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  23
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  24
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  24
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  24
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  24
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  26
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  26

1.  Introduction

   A key requirement in distributed mobility management [RFC7333] is to
   enable traffic to avoid traversing single mobility anchor far from
Show full document text