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PMIPv6-based distributed anchoring
draft-bernardos-dmm-distributed-anchoring-04

Document type: Active Internet-Draft (individual)
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Last updated: 2014-05-15
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DMM Working Group                                          CJ. Bernardos
Internet-Draft                                                      UC3M
Intended status: Standards Track                              JC. Zuniga
Expires: November 16, 2014                                  InterDigital
                                                            May 15, 2014

                   PMIPv6-based distributed anchoring
              draft-bernardos-dmm-distributed-anchoring-04

Abstract

   Distributed Mobility Management solutions allow for setting up
   networks so that traffic is distributed in an optimal way and does
   not rely on centralized deployed anchors to provide IP mobility
   support.

   There are many different approaches to address Distributed Mobility
   Management, as for example extending network-based mobility protocols
   (like Proxy Mobile IPv6), or client-based mobility protocols (as
   Mobile IPv6), among others.  This document follows the former
   approach, and proposes a solution based on Proxy Mobile IPv6 in which
   mobility sessions are anchored at the last IP hop router (called
   distributed gateway).  The distributed gateway is an enhanced access
   router which is also able to operate as local mobility anchor or
   mobility access gateway, on a per prefix basis.  The draft focuses on
   the required extensions to effectively support simultaneously
   anchoring several flows at different distributed gateways.

   This draft introduces the concept of distributed logical interface
   (at the distributed gateway), which is a software construct that
   allows to easily hide the change of anchor from the mobile node.
   Additionally, the draft describes how to provide session continuity
   in inter-domain scenarios in which dynamic tunneling or signaling
   between distributed gateways from different operators is not allowed.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

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

Bernardos & Zuniga      Expires November 16, 2014               [Page 1]
Internet-Draft        PMIPv6 distributed anchoring              May 2014

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   This Internet-Draft will expire on November 16, 2014.

Copyright Notice

   Copyright (c) 2014 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
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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.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Solution's overview . . . . . . . . . . . . . . . . . . . . .   4
   4.  Simultaneous anchoring of multiple flows (single operator)  .   6
     4.1.  The Distributed Logical Interface (DLIF) concept  . . . .   7
     4.2.  D-GW protocol operation . . . . . . . . . . . . . . . . .  10
     4.3.  Message format  . . . . . . . . . . . . . . . . . . . . .  13
       4.3.1.  Proxy Binding Update  . . . . . . . . . . . . . . . .  13
       4.3.2.  Proxy Binding Acknowledgment  . . . . . . . . . . . .  13
       4.3.3.  Anchored Prefix Option  . . . . . . . . . . . . . . .  14
       4.3.4.  Local Prefix Option . . . . . . . . . . . . . . . . .  15
       4.3.5.  DLIF Link-local Address Option  . . . . . . . . . . .  16
       4.3.6.  DLIF Link-layer Address Option  . . . . . . . . . . .  17
   5.  Simultaneous anchoring of multiple flows (multiple operators)  18

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