Mapping of Address and Port (MAP) - Deployment Considerations
draft-ietf-softwire-map-deployment-00

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Last updated 2012-10-22
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Network Working Group                                             Q. Sun
Internet-Draft                                             China Telecom
Intended status: Informational                                   M. Chen
Expires: December 31, 2012                                       FreeBit
                                                                 G. Chen
                                                            China Mobile
                                                                  C. Sun
                                                             Softbank BB
                                                                 T. Tsou
                                                     Huawei Technologies
                                                            S. Perreault
                                                               Viagenie
                                                           June 29, 2012

     Mapping of Address and Port (MAP) - Deployment Considerations
                  draft-ietf-softwire-map-deployment-00

Abstract

   This document describes when and how an operator uses the technique
   of Mapping of Address and Port (MAP) for the IPv4 residual deployment
   in the IPv6-dominant domain.

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 December 31, 2012.

Copyright Notice

   Copyright (c) 2012 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

Sun, et al.             Expires December 31, 2012               [Page 1]
Internet-Draft               MAP Deployment                    June 2012

   (http://trustee.ietf.org/license-info) in effect on the date of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Conventions  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Case Studies . . . . . . . . . . . . . . . . . . . . . . . . .  5
     3.1.  Fixed networks . . . . . . . . . . . . . . . . . . . . . .  5
     3.2.  Mobile networks  . . . . . . . . . . . . . . . . . . . . .  6
   4.  Deployment Consideration . . . . . . . . . . . . . . . . . . .  8
     4.1.  Network Models . . . . . . . . . . . . . . . . . . . . . .  8
     4.2.  Building the MAP domain  . . . . . . . . . . . . . . . . .  9
       4.2.1.  MAP deployment model planning  . . . . . . . . . . . . 10
       4.2.2.  MAP domain planning  . . . . . . . . . . . . . . . . . 10
       4.2.3.  MAP rule provisioning  . . . . . . . . . . . . . . . . 11
       4.2.4.  MAP DHCPv6 server deployment consideration . . . . . . 12
       4.2.5.  PSID consideration . . . . . . . . . . . . . . . . . . 13
       4.2.6.  Addressing and routing . . . . . . . . . . . . . . . . 13
       4.2.7.  Translation vs. Encapsulation  . . . . . . . . . . . . 14
     4.3.  BR settings  . . . . . . . . . . . . . . . . . . . . . . . 14
     4.4.  CE settings  . . . . . . . . . . . . . . . . . . . . . . . 17
     4.5.  Supporting system  . . . . . . . . . . . . . . . . . . . . 18
   5.  MAP Address Planning . . . . . . . . . . . . . . . . . . . . . 20
     5.1.  Planning for Residual Deployment, a Step-by-step Guide . . 20
     5.2.  Remarks on Deployment Paradigms  . . . . . . . . . . . . . 22
   6.  Migration Methodology  . . . . . . . . . . . . . . . . . . . . 24
     6.1.  Roadmap for MAP-based Solution . . . . . . . . . . . . . . 24
       6.1.1.  Start from Scratch . . . . . . . . . . . . . . . . . . 24
       6.1.2.  Coexiting Phases . . . . . . . . . . . . . . . . . . . 24
       6.1.3.  Exit Strategy  . . . . . . . . . . . . . . . . . . . . 25
     6.2.  Migration Mode . . . . . . . . . . . . . . . . . . . . . . 25
       6.2.1.  Passive Transition . . . . . . . . . . . . . . . . . . 25
       6.2.2.  Active Transition  . . . . . . . . . . . . . . . . . . 26
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 27
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