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Versions: (draft-venaas-pim-registry) 00 01 02 03 04 RFC 6166

Network Working Group                                          S. Venaas
Internet-Draft                                             cisco Systems
Intended status: Informational                               May 5, 2010
Expires: November 6, 2010


                    A Registry for PIM Message Types
                     draft-ietf-pim-registry-00.txt

Abstract

   This document provides instructions to IANA for the creation of a
   registry for PIM message types.  It specifies initial content of the
   registry based on existing RFCs specifying PIM message types.  It
   also specifies a procedure for registering new types.

   In addition to this, one message type is reserved, and may be used
   for a future extension of the message type space.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on November 6, 2010.

Copyright Notice

   Copyright (c) 2010 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
   (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
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of



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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.


Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Security Considerations . . . . . . . . . . . . . . . . . . . . 4
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 5
     3.1.  Initial registry  . . . . . . . . . . . . . . . . . . . . . 5
     3.2.  Assignment of new message types . . . . . . . . . . . . . . 5
   4.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 6
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 7
     5.1.  Normative References  . . . . . . . . . . . . . . . . . . . 7
     5.2.  Informative References  . . . . . . . . . . . . . . . . . . 7
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . . . 8



































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1.  Introduction

   Apart from this document, there is no existing document specifying a
   registry for PIM message types.  PIM version 1 made use of IGMP
   [RFC1112] and there is an IGMP registry [IGMPREG] listing the message
   types used by PIM version 1.  PIM version 2 however is not based on
   IGMP, and a separate PIM message type registry is needed.  There are
   currently several RFCs specifying new PIM version 2 message types
   that should be in this new registry.  They are the RFCs for PIM Dense
   Mode [RFC3973], PIM Sparse Mode [RFC4601] and Bidirectional PIM
   [RFC5015].

   This document specifies the initial content of the new PIM message
   type registry based on those existing RFCs.  This document also
   specifies a procedure for registering new PIM message types.

   In addition to this, this document reserves one message type.  This
   type may be used for a future extension of the message type space.
   How exactly the extension should be done is left to a future
   document.































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2.  Security Considerations

   This document only creates an IANA registry.  There may be a security
   benefit in a well-known place for finding information on which PIM
   message types are valid and what they mean.  Apart from that there
   are no security considerations.













































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3.  IANA Considerations

   This document requests IANA to create a PIM message type registry.
   This should be placed in the "Protocol Independent Multicast (PIM)"
   branch of the tree.  Each entry in the registry consists of message
   type, message name and references to the documents defining the type.

3.1.  Initial registry

   The initial content of the registry should be as follows.

   Type   Name                                      Reference
   ----  ----------------------------------------  ---------------------
     0    Hello                                     [RFC3973] [RFC4601]
     1    Register                                  [RFC4601]
     2    Register Stop                             [RFC4601]
     3    Join/Prune                                [RFC3973] [RFC4601]
     4    Bootstrap                                 [RFC4601]
     5    Assert                                    [RFC3973] [RFC4601]
     6    Graft                                     [RFC3973]
     7    Graft-Ack                                 [RFC3973]
     8    Candidate RP Advertisement                [RFC4601]
     9    State Refresh                             [RFC3973]
    10    DF Election                               [RFC5015]
    15    Reserved (for extension of type space)    [this document]

3.2.  Assignment of new message types

   Assignment of new message types is done according to the "IETF
   Review" model, see [RFC5226].





















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4.  Acknowledgements

   Thanks to Toerless Eckert for his suggestion to reserve a type for
   future message type space extension.















































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5.  References

5.1.  Normative References

   [RFC3973]  Adams, A., Nicholas, J., and W. Siadak, "Protocol
              Independent Multicast - Dense Mode (PIM-DM): Protocol
              Specification (Revised)", RFC 3973, January 2005.

   [RFC4601]  Fenner, B., Handley, M., Holbrook, H., and I. Kouvelas,
              "Protocol Independent Multicast - Sparse Mode (PIM-SM):
              Protocol Specification (Revised)", RFC 4601, August 2006.

   [RFC5015]  Handley, M., Kouvelas, I., Speakman, T., and L. Vicisano,
              "Bidirectional Protocol Independent Multicast (BIDIR-
              PIM)", RFC 5015, October 2007.

5.2.  Informative References

   [IGMPREG]  IANA, "IGMP Type Numbers", IGMP TYPE NUMBERS - per
              RFC3228,
              BCP57 http://www.iana.org/assignments/igmp-type-numbers,
              June 2005.

   [RFC1112]  Deering, S., "Host extensions for IP multicasting", STD 5,
              RFC 1112, August 1989.


























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Author's Address

   Stig Venaas
   cisco Systems
   Tasman Drive
   San Jose, CA  95134
   USA

   Email: stig@cisco.com










































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