Distributed Mobility Anchoring
draft-ietf-dmm-distributed-mobility-anchoring-11

Document Type Active Internet-Draft (dmm WG)
Last updated 2018-08-29
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 2, 2019                                            J. Lee
                                                    Sangmyung University
                                                                 S. Jeon
                                                 Sungkyunkwan University
                                                      CJ. Bernardos, Ed.
                                                                    UC3M
                                                         August 29, 2018

                     Distributed Mobility Anchoring
            draft-ietf-dmm-distributed-mobility-anchoring-11

Abstract

   This document defines distributed mobility anchoring in terms of the
   different configurations and functions to provide IP mobility
   support.  A network may be configured with distributed mobility
   anchoring functions for both network-based or host-based mobility
   support according to the needs of mobility support.  In the
   distributed mobility anchoring environment, multiple anchors are
   available for mid-session switching of an IP prefix anchor.  To start
   a new flow or to handle a flow not requiring IP session continuity as
   a mobile node moves to a new network, the flow can be started or re-
   started using a new IP address configured from the new IP prefix
   which is anchored to the new network.  The mobility functions and
   their operations and parameters are general for different
   configurations.

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
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   This Internet-Draft will expire on March 2, 2019.

Chan, et al.              Expires March 2, 2019                 [Page 1]
Internet-Draft       distributed mobility anchoring          August 2018

Copyright Notice

   Copyright (c) 2018 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions and Terminology . . . . . . . . . . . . . . . . .   4
   3.  Distributed Mobility Anchoring  . . . . . . . . . . . . . . .   5
     3.1.  Configurations for Different Networks . . . . . . . . . .   5
       3.1.1.  Network-based DMM . . . . . . . . . . . . . . . . . .   5
       3.1.2.  Client-based DMM  . . . . . . . . . . . . . . . . . .   6
   4.  IP Mobility Handling in Distributed Anchoring Environments -
       Mobility Support Only When Needed . . . . . . . . . . . . . .   7
     4.1.  Nomadic case (no need of IP mobility): Changing to new IP
           prefix/address  . . . . . . . . . . . . . . . . . . . . .   8
     4.2.  Mobility case, traffic redirection  . . . . . . . . . . .  10
     4.3.  Mobility case, anchor relocation  . . . . . . . . . . . .  12
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  14
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

1.  Introduction

   A key requirement in distributed mobility management [RFC7333] is to
   enable traffic to avoid traversing a single mobility anchor far from
   an optimal route.  This document defines different configurations,
   functional operations and parameters for distributed mobility
   anchoring and explains how to use them to make the route changes to
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