Internet Engineering Task Force                                  T. Yang
Internet-Draft                                                     L. Li
Intended status: Informational                                     Q. Ma
Expires: Jan 2, 2016                                        China Mobile
                                                            July 2, 2015


               Scenario of IPv6 Transition Technologies Selection
                  draft-yang-v6ops-ipv6tran-select-03

Abstract

   Many IPv6 transition technologies has been proposed, such
   as Dual-Stack, 6rd and so on.  An CPE may support some of
   them instead of only one.  But the ISPs always support different kinds
   of transition technologies.  So they must control all the CPEs to 
   match the exact transition tech through the CPEs' management system 
   or configuring them before issuing to the customers.

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 Jan 2, 2016

Copyright Notice

   Copyright (c) 2013 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.


Yang, et al.             Expires Jan 2, 2016                    [Page 1]

Internet-Draft               IPv6tran-select                   July 2015

Table of Contents

   1.  Problem Statement  . . . . . . . . . . . . . . . .. . . . . . . 2
   2.  Security Considerations . . . . . . . . . . . . . . . . . . . . 3
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 3



1.  Problem Statement

   Nowadays, many IPv6 transitioning technologies has been proposed such
   as Dual-Stack, DS-Lite, 6rd and so on.  Each of them proposes
   individual requirment to the CPEs.  To promote the competitive
   ability of products,the CPE manufacturers certainly will try to
   support more technologies as much as possible.  Meanwhile, the
   operators tend to use single or less technologies.  Moreover, users
   can buy and use their own equipments instead of using the one which
   operator gives them, that will bring the diversity of CPEs.

   Assume that an operator uses one or more transitioning strategies in its
   network.  There are two ways to make the CPEs available.  The first
   one is to make a pre-configuration for each CPE in advance.  But,
   when the users modify the configuration or change to their own
   equipment, the connection will fail.  The Second method is to deploy
   Network Management System (NMS) to configurate all the CPEs.  Various
   CPEs from different manufactories usually need different NMS which
   means either the operator needs to maintains multiple NMS in their
   network or operator can only use one manufacturer's product in a
   subnet.  What's worse, when users buy and use their own CPE instead
   of using the original one, there will be no any solutions to
   configurate correctly except visiting service.
   
   Some specific messages need to be define between CPE and DHCP Server 
   to communicate the IPv6 transition technologies.
   
            +----------------------+
            |     ISP network      |
            |                      |
   +-----+  |       +-------+      |
   | CPE |----------| BRAS  |      |
   +-----+  |       +-------+      |
            |                      |
            |                      |
            +----------------------+
Figure1 IPv6 trans tech configuration Scenario







Yang, et al.             Expires Jan 2, 2016                    [Page 2]

Internet-Draft               IPv6tran-select                   July 2015


2.  Security Considerations

   The security problem is under disscussion.



Authors' Addresses

   Tianle Yang
   China Mobile
   32, Xuanwumenxi Ave.
   Xicheng District, Beijing  100053
   China

   Email: yangtianle@chinamobile.com


   Li Lianyuan
   China Mobile
   32,  Xuanwumenxi Ave.
   Xicheng District, Beijing  100053
   China

   Email: lilianyuan@chinamobile.com


   Qiongfang Ma
   China Mobile
   32,  Xuanwumenxi Ave.
   Xicheng District, Beijing  100053
   China

   Email: maqiongfang@chinamobile.com


















Yang, et al.             Expires Jan 2, 2016                 [Page 3]