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Versions: 00 01 02 03                                                   
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


   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.

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   This Internet-Draft will expire on Jan 2, 2016

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   Copyright (c) 2013 IETF Trust and the persons identified as the
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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

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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

   Email: yangtianle@chinamobile.com

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

   Email: lilianyuan@chinamobile.com

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

   Email: maqiongfang@chinamobile.com

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