Network Working Group                                          A. Retana
Internet-Draft                                       Cisco Systems, Inc.
Intended status: Standards Track                                D. Cheng
Expires: March 30, 2013                              Huawei Technologies
                                                      September 26, 2012


                   OSPFv3 Instance ID Registry Update
            draft-retana-ospf-ospfv3-iid-registry-update-00

Abstract

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

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   This Internet-Draft will expire on March 30, 2013.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . . . 3
   3.  OSPFv3 Instance ID Address Family Values Registry Update  . . . 3
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3
   5.  Security Considerations . . . . . . . . . . . . . . . . . . . . 4
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 4
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 4
     7.1.  Normative References  . . . . . . . . . . . . . . . . . . . 4
     7.2.  Informative References  . . . . . . . . . . . . . . . . . . 4
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 4







































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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.


2.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].


3.  OSPFv3 Instance ID Address Family Values Registry Update

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

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


4.  IANA Considerations

   This document requests the modification of the "OSPFv3 Instance ID
   Address Family Values" registry as described in Section 3.






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5.  Security Considerations

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


6.  Acknowledgements

   Many thanks to Acee Lindem and Stewart Bryant for their input.


7.  References

7.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

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

7.2.  Informative References

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


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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