IPv6 Enterprise Network Renumbering Scenarios, Considerations and Methods
draft-ietf-6renum-enterprise-05

The information below is for an old version of the document
Document Type Active Internet-Draft (6renum WG)
Last updated 2013-01-10 (latest revision 2012-12-21)
Replaces draft-jiang-6renum-enterprise
Stream IETF
Intended RFC status Informational
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Stream WG state Submitted to IESG for Publication
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IESG IESG state Approved-announcement to be sent::Point Raised - writeup needed
Telechat date
Responsible AD Ron Bonica
IESG note Lee Howard (lee.howard@twcable.com) is the document shepherd.
Send notices to 6renum-chairs@tools.ietf.org, draft-ietf-6renum-enterprise@tools.ietf.org
Network Working Group                                         S. Jiang 
Internet Draft                                                  B. Liu 
Intended status: Informational            Huawei Technologies Co., Ltd 
Expires: June 23, 2013                                    B. Carpenter 
                                                University of Auckland 
                                                     December 21, 2012 
                                    
             IPv6 Enterprise Network Renumbering Scenarios, 
                       Considerations and Methods 
                  draft-ietf-6renum-enterprise-05.txt 

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Internet-Draft     draft-ietf-6renum-enterprise-05       December 2012 
    

    

Abstract 

   This document analyzes events that cause renumbering and describes 
   the current renumbering methods. These are described in three 
   categories: those applicable during network design, those applicable 
   during preparation for renumbering, and those applicable during the 
   renumbering operation.  

Table of Contents 

   1. Introduction ................................................. 3 
   2. Enterprise Network Illustration for Renumbering .............. 3 
   3. Enterprise Network Renumbering Scenario Categories ........... 5 
      3.1. Renumbering Caused by External Network Factors .......... 5 
      3.2. Renumbering caused by Internal Network Factors .......... 6 
   4. Network Renumbering Considerations and Current Methods ....... 6 
      4.1. Considerations and Current Methods during Network Design. 6 
      4.2. Considerations and Current Methods for the Preparation of 
      Renumbering ................................................. 10 
      4.3. Considerations and Current Methods during Renumbering 
      Operation ................................................... 11 
   5. Security Considerations ..................................... 13 
   6. IANA Considerations ......................................... 14 
   7. Acknowledgements ............................................ 14 
   8. References .................................................. 14 
      8.1. Normative References ................................... 14 
      8.2. Informative References ................................. 15 
   Author's Addresses ............................................. 17 
    

 
 
Jiang, et al.               June 23, 2013                     [Page 2] 


Internet-Draft     draft-ietf-6renum-enterprise-05       December 2012 
    

    
1. Introduction 

   Site renumbering is difficult. Network managers frequently attempt to 
   avoid future renumbering by numbering their network resources from 
   Provider Independent (PI) address space. However, widespread use of 
   PI would aggravate BGP4 scaling problems [RFC4116] and, depending on 
   Regional Internet Registry (RIR) policies, PI space is not always 
   available for enterprises of all sizes. Therefore, it is desirable to 
   develop mechanisms that simplify IPv6 renumbering for enterprises. 

   This document is an analysis of IPv6 site renumbering for enterprise 
   networks. It undertakes scenario descriptions, including 
   documentation of current capabilities and existing practices. The 
   reader is assumed to be familiar with [RFC4192] and [RFC5887]. 
   Proposals for new technology and methods are out of scope. 
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