Wireline Incremental IPv6
draft-ietf-v6ops-wireline-incremental-ipv6-01

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Document Type Active Internet-Draft (v6ops WG)
Last updated 2012-02-01 (latest revision 2011-11-27)
Replaces draft-kuarsingh-wireline-incremental-ipv6
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v6ops                                                  V. Kuarsingh, Ed.
Internet-Draft                                     Rogers Communications
Intended status: Informational                                 L. Howard
Expires: August 5, 2012                                Time Warner Cable
                                                        February 2, 2012

                       Wireline Incremental IPv6
             draft-ietf-v6ops-wireline-incremental-ipv6-01

Abstract

   Operators worldwide are in various stages of preparing for, or
   deploying IPv6 into their networks.  The operators often face
   difficult challenges related to both IPv6 introduction along with
   those related to IPv4 run out.  Operators will need to meet the
   simultaneous needs of IPv6 connectivity and continue support for IPv4
   connectivity for legacy devices with a depleting supply of IPv4
   addresses.  The IPv6 transition will take most networks from an IPv4-
   only environment to an IPv6 focused environment with long period of
   dual stack operation varying by operator.  This document helps
   provide a framework for Wireline providers who are faced with the
   challenges of introducing IPv6 along meeting the legacy needs of IPv4
   connectivity utilizing well defined and commercially available IPv6
   transition technologies.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on August 5, 2012.

Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Kuarsingh & Howard       Expires August 5, 2012                 [Page 1]
Internet-Draft          Wireline Incremental IPv6          February 2012

   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.

Kuarsingh & Howard       Expires August 5, 2012                 [Page 2]
Internet-Draft          Wireline Incremental IPv6          February 2012

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Operator Assumptions . . . . . . . . . . . . . . . . . . . . .  4
   3.  Reasons and Considerations for a Phased Approach . . . . . . .  5
     3.1.  Relevance of IPv6 and IPv4 . . . . . . . . . . . . . . . .  5
     3.2.  IPv4 Resource Challenges . . . . . . . . . . . . . . . . .  6
     3.3.  IPv6 Introduction and Operational Maturity . . . . . . . .  6
     3.4.  Service Management . . . . . . . . . . . . . . . . . . . .  7
     3.5.  Sub-Optimal Operation of Transition Technologies . . . . .  8
     3.6.  Future IPv6 Network  . . . . . . . . . . . . . . . . . . .  8
   4.  IPv6 Transition Technology Analysis  . . . . . . . . . . . . .  9
     4.1.  Automatic Tunnelling using 6to4 and Teredo . . . . . . . .  9
     4.2.  Carrier Grade NAT (NAT444) . . . . . . . . . . . . . . . .  9
     4.3.  6RD  . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     4.4.  Native Dual Stack  . . . . . . . . . . . . . . . . . . . . 10
     4.5.  DS-Lite  . . . . . . . . . . . . . . . . . . . . . . . . . 11
     4.6.  NAT64  . . . . . . . . . . . . . . . . . . . . . . . . . . 11
   5.  IPv6 Transition Phases . . . . . . . . . . . . . . . . . . . . 12
     5.1.  Phase 0 - Foundation . . . . . . . . . . . . . . . . . . . 12
       5.1.1.  Phase 0 - Foundation: Training . . . . . . . . . . . . 12
       5.1.2.  Phase 0 - Foundation: Routing  . . . . . . . . . . . . 13
       5.1.3.  Phase 0 - Foundation: Network Policy and Security  . . 13
       5.1.4.  Phase 0 - Foundation: Transition Architecture  . . . . 13
       5.1.5.  Phase 0- Foundation: Tools and Management  . . . . . . 14
     5.2.  Phase 1 - Tunnelled IPv6 . . . . . . . . . . . . . . . . . 14
       5.2.1.  6RD Deployment Considerations  . . . . . . . . . . . . 15
     5.3.  Phase 2: Native Dual Stack . . . . . . . . . . . . . . . . 17
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