OSPFv3 Instance ID Registry Update
draft-ietf-ospf-ospfv3-iid-registry-update-03

Network Working Group                                          A. Retana
Internet-Draft                                       Cisco Systems, Inc.
Updates: 5838 (if approved)                                     D. Cheng
Intended status: Standards Track                     Huawei Technologies
Expires: October 19, 2013                                 April 17, 2013

                   OSPFv3 Instance ID Registry Update
             draft-ietf-ospf-ospfv3-iid-registry-update-03

Abstract

   This document modifies the "Unassigned" number space in the IANA
   "OSPFv3 Instance ID Address Family Values" registry.

Status of This Memo

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   This Internet-Draft will expire on October 19, 2013.

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Table of Contents

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   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  OSPFv3 Instance ID Address Family Values Registry Update  . .   2
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   3
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   3
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   3
   Appendix A.  Change Log . . . . . . . . . . . . . . . . . . . . .   3
     A.1.  Changes between the -00 and -01 versions. . . . . . . . .   3
     A.2.  Changes between the -01 and -02 versions. . . . . . . . .   4
     A.3.  Changes between the -02 and -03 versions. . . . . . . . .   4
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   [RFC5838] defined the "OSPFv3 Instance ID Address Family Values"
   registry for the purpose of mapping OSPFv3 Instance IDs to different
   address families.  The following table lists the value ranges as
   currently allocated.

   +---------------------------+-------------------+-------------------+
   | Instance ID Range         | Description       | Assignment Policy |
   +---------------------------+-------------------+-------------------+
   | Instance ID # 0 - # 31    | IPv6 unicast AF   | Already Assigned  |
   | Instance ID # 32 - # 63   | IPv6 multicast AF | Already Assigned  |
   | Instance ID # 64 - # 95   | IPv4 unicast AF   | Already Assigned  |
   | Instance ID # 96 - # 127  | IPv4 multicast AF | Already Assigned  |
   | Instance ID # 128 - # 255 | Unassigned        | Standards Action  |
   +---------------------------+-------------------+-------------------+

   In some networks additional OSPFv3 instances may be required to
   operationally identify specific applications.  For example,
   [I-D.ietf-ospf-ipv4-embedded-ipv6-routing] describes an application
   in which IPv4-embedded IPv6 addresses are used to transport IPv4
   packets over an IPv6 network.  While the IPv4-embedded IPv6 addresses
   do in fact represent IPv6 destinations, it would be operationally
   benefitial to be able to easily identify the the specific application
   by having a separate space to do so.

2.  OSPFv3 Instance ID Address Family Values Registry Update

   The IANA "OSPFv3 Instance ID Address Family Values" registry must be
   updated as follows:

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    +---------------------------+-------------+-----------------------+
    | Instance ID Range         | Description | Assignment Policy     |
    +---------------------------+-------------+-----------------------+
    | Instance ID # 128 - # 191 | Unassigned  | Standards Action      |
    | Instance ID # 192 - # 255 | Reserved    | Private Use [RFC5226] |
    +---------------------------+-------------+-----------------------+

3.  IANA Considerations

   This document requests the modification of the "OSPFv3 Instance ID
   Address Family Values" registry as described in Section 2.  The
   reference to [RFC5838] should be removed from the registry for the
   modified ranges.

4.  Security Considerations

   This document modifies the assignment policy of an IANA registry
   defined in [RFC5838].  It does not introduce any new security issues.

5.  Acknowledgements

   Many thanks to Acee Lindem, Stewart Bryant, Nevil Brownlee, Pearl
   Liang and Ben Campbell for their review and input.

6.  References

6.1.  Normative References

   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
              IANA Considerations Section in RFCs", BCP 26, RFC 5226,
              May 2008.

6.2.  Informative References

   [I-D.ietf-ospf-ipv4-embedded-ipv6-routing]
              Cheng, D., Boucadair, M., and A. Retana, "Routing for
              IPv4-embedded IPv6 Packets", draft-ietf-ospf-ipv4
              -embedded-ipv6-routing-10 (work in progress), April 2013.

   [RFC5838]  Lindem, A., Mirtorabi, S., Roy, A., Barnes, M., and R.
              Aggarwal, "Support of Address Families in OSPFv3", RFC
              5838, April 2010.

Appendix A.  Change Log

A.1.  Changes between the -00 and -01 versions.

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   o  Eliminated rfc2119 keywords, section about Requirements Language
      and corresponding reference.

   o  Updated acks.

A.2.  Changes between the -01 and -02 versions.

   o  Added indicated that this draft updates rfc5838.

   o  Clarified the description of the 'Private Use' range to
      'Reserved'.

   o  Added the need to remove the reference to rfc5838 from the updated
      registry fields.

   o  Updated acks.

A.3.  Changes between the -02 and -03 versions.

   o  Inserted example of the motivation.

   o  Updated acks.

Authors' Addresses

   Alvaro Retana
   Cisco Systems, Inc.
   7025 Kit Creek Rd.
   Research Triangle Park, NC  27709
   USA

   Email: aretana@cisco.com

   Dean Cheng
   Huawei Technologies
   2330 Central Expressway
   Santa Clara, California  95050
   USA

   Email: dean.cheng@huawei.com

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