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Delay Tolerant Networking WG                                    K. Scott
Internet-Draft                                     The MITRE Corporation
Intended status: Informational                                S. Farrell
Expires: May 18, 2012                        Computer Science Department
                                                       November 15, 2011


   Licklider Transmission Protocol (LTP) and Compressed Bundle Header
                    Encoding (CBHE) IANA Registries
                   draft-dtnrg-ltp-cbhe-registries-00

Abstract

   The DTNRG research group has defined the experimental Licklider
   Transmission Protocol (LTP) [RFC5326] and the Compressed Bundle
   Header Encoding (CBHE) [RFC6260] mechanism for the 'ipn' URI scheme.
   Both documents describe fields that are subject to a registry.  For
   the purpose of its research work, the group has created ad-hoc
   registries.  As the specifications are stable and have multiple
   interoperable implementations, the group would like to hand off the
   registries to IANA for official custody.  This document describes the
   actions needed to be executed by IANA.

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 RFC 2119 [RFC2119].

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 May 18, 2012.

Copyright Notice




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   Copyright (c) 2011 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
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.


Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Licklider Transmission Protocol . . . . . . . . . . . . . . . . 3
     2.1.  LTP Engine ID . . . . . . . . . . . . . . . . . . . . . . . 3
     2.2.  LTP Client Service ID . . . . . . . . . . . . . . . . . . . 4
   3.  Compressed Bundle Header Encoding . . . . . . . . . . . . . . . 5
     3.1.  CBHE Node Numbers . . . . . . . . . . . . . . . . . . . . . 5
   4.  Security Considerations . . . . . . . . . . . . . . . . . . . . 6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 6
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 7
     7.1.  Normative References  . . . . . . . . . . . . . . . . . . . 7
     7.2.  Informative References  . . . . . . . . . . . . . . . . . . 7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 7






















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1.  Introduction

   The DTNRG research group has defined the Licklider Transmission
   Protocol (LTP)[RFC5326].  LTP contains certain fields that are
   subject to a registry.  For the purpose of its research work, the
   group has created ad-hoc registries.  As the specifications are
   stable and have multiple interoperable implementations, the group
   would like to hand off the registries to IANA for official custody.
   This document describes the actions needed to be executed by IANA.

   The Compressed Bundle Header Encoding (CBHE) [RFC6260] specification
   defines the concepts of Node Number and Service Number in the 'ipn'
   URI scheme.  In this document we request formation of an IANA
   registry for the Node Number field in the 'ipn' scheme.  There is a
   separate Internet Draft that will (if approved) establish a registry
   for the service-nbr portion and relate entries there to a
   corresponding registry for the 'dtn' URI scheme.

   Because of its association with space communication and the
   Consultative Committee on Space Data Systems [CCSDS], a portion of
   the CBHE Node Number space and a portion of the LTP Engine ID space
   is delegated by this document to the CCSDS Space Assigned Numbers
   Authority [SANA].  SANA functions similarly to IANA in that it
   maintains registries of managed values, with a focus on values used
   by protocols used by CCSDS member agencies.


2.  Licklider Transmission Protocol

   The Licklider Transmission Protocol has fields requiring registries
   managed by IANA.

2.1.  LTP Engine ID

   The Licklider Transmission Protocol has an LTP Engine ID field
   (section 2 of [RFC5326]).  An IANA registry shall be set up as
   follows.

   The registration policy for this registry is:

   0  Reserved

   1 -- (2**14)-1  Expert review required.  The designated experts for
      the review are the chairs of the IRTF DTN Research Group (dtnrg)
      if the dtnrg is extant, or as determined by the IRSG.






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   (2**14) -- (2**21)-1  Allocated to the Space Assigned Numbers
      Authority (SANA) for use by Consultative Committee for Space Data
      Systems (CCSDS) missions.

   (2**21) -- (2**27)-1  Private or experimental use.  No assignment by
      IANA.

   (2**27) -- (2**42)-1  First-come, First-Served for requests for less
      than or equal to 2**14 values.  Expert review for requests of more
      than 2**14 values.  The designated experts for the review are the
      chairs of the IRTF DTN Research Group (dtnrg) if the dtnrg is
      extant, or as determined by the IRSG.

   >= (2**42)  Reserved

   The LTP Engine ID is expressed as a Self-Delimiting Numeric Value
   (SDNV) in the LTP protocol and no maximum is specified in the
   protocol definition.

   Initial values for the LTP Engine Numbers Registry:
     +--------------------+----------------------------+---------------+
     |        Value       | Description                | Reference     |
     +--------------------+----------------------------+---------------+
     |                  0 | Reserved                   | This document |
     |       1--(2**14)-1 | Unassigned                 | This document |
     | (2**14)--(2**21)-1 | Managed by CCSDS SANA      | This document |
     | (2**21)--(2**27)-1 | Private/Experimental Use   | This document |
     | (2**27)--(2**42)-1 | Unassigned                 | This document |
     |          >=(2**42) | Reserved                   | This document |
     +--------------------+----------------------------+---------------+

2.2.  LTP Client Service ID

   The Licklider Transmission Protocol has a client service ID number
   field (section 3.2.1 of [RFC5326]).  An IANA registry shall be set up
   as follows.

   The registration policy for this registry is:

   0  Reserved

   1 -- 127  Expert review required.  The designated experts for the
      review are the chairs of the IRTF DTN Research Group (dtnrg) if
      the dtnrg is extant, or as determined by the IRSG.







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   128 -- 255  Private or experimental use.  No assignment by IANA.

   >= 256  Expert review required.  The designated experts for the
      review are the chairs of the IRTF DTN Research Group (dtnrg) if
      the dtnrg is extant, or as determined by the IRSG.

   The LTP Engine ID is expressed as a Self-Delimiting Numeric Value
   (SDNV) in the LTP protocol and no maximum value is specified in the
   protocol definition.

   LTP Client Service Identifiers Registry:
     +---------------+---------------------------------+---------------+
     |        Value  | Description                     | Reference     |
     +---------------+---------------------------------+---------------+
     |             0 | Reserved                        | [RFC5326]     |
     |             1 | Bundle Protocol                 | This document |
     |        2--127 | Unassigned                      | This document |
     |      128--255 | Private / Experimental User     | This document |
     |         >=256 | Unassigned                      | This document |
     +---------------+---------------------------------+---------------+


3.  Compressed Bundle Header Encoding

   The Compressed Bundle Header Encoding specification defines concepts
   of Node Number' and 'Service Number' that require registries managed
   by IANA.  This document addresses the 'Node Number' registry; a
   separate document addresses the formation and management of the
   'Service Number' registry.

3.1.  CBHE Node Numbers

   The Compressed Bundle Header Enoding specification defnes a Node
   Number (node-nbr) field (section 2.1 of [RFC6260]).  An IANA registry
   shall be set up as follows.

   The registration policy for this registry is:

   0  Reserved

   1 -- (2**14)-1  Expert review required.  The designated experts for
      the review are the chairs of the IRTF DTN Research Group (dtnrg)
      if the dtnrg is extant, or as determined by the IRSG.

   (2**14) -- (2**21)-1  Allocated to the Space Assigned Numbers
      Authority (SANA) for use by Consultative Committee for Space Data
      Systems (CCSDS) missions.




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   (2**21) -- (2**27)-1  Private or experimental use.  No assignment by
      IANA.

   (2**27) -- (2**42)-1  First-come, First-Served for requests for less
      than or equal to 2**14 values.  Expert review for requests of more
      than 2**14 values.  The designated experts for the review are the
      chairs of the IRTF DTN Research Group (dtnrg) if the dtnrg is
      extant, or as determined by the IRSG.

   >= (2**42)  Reserved

   The CBHE Node Number is expressed as a Self-Delimiting Numeric Value
   (SDNV) in the CBHE specification.  Allowable values for the Node
   Number range from 1 -- 2**64)-1.

   Initial values for the CBHE Node Number Registry:
     +--------------------+----------------------------+---------------+
     |        Value       | Description                | Reference     |
     +--------------------+----------------------------+---------------+
     |                  0 | Reserved                   | This document |
     |       1--(2**14)-1 | Unassigned                 | This document |
     | (2**14)--(2**21)-1 | Managed by CCSDS SANA      | This document |
     | (2**21)--(2**27)-1 | Private/Experimental Use   | This document |
     | (2**27)--(2**42)-1 | Unassigned                 | This document |
     |          >=(2**42) | Reserved                   | This document |
     +--------------------+----------------------------+---------------+


4.  Security Considerations

   This document requests the creation of registries managed by IANA.
   Thera are no security issues involved.  Refer to the Security
   Considerations section of [RFC5326] for security issues with the LTP
   protocol.


5.  IANA Considerations

   IANA is requested to create the registries as described in Sections 2
   and 3.


6.  Acknowledgements

   The editor would like to thank the following people, in no specific
   order: Marc Blanchet, Scott Burleigh.





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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.

   [RFC5326]  Ramadas, M., Burleigh, S., and S. Farrell, "Licklider
              Transmission Protocol - Specification", RFC 5326,
              September 2008.

   [RFC6260]  Burleigh, S., "Compressed Bundle Header Encoding (CBHE)",
              RFC 6260, May 2011.

7.2.  Informative References

   [CCSDS]    "The Consultative Committee for Space Data Systems,
              http://www.ccsds.org".

   [SANA]     "The CCSDS SANA Registry page at http://sanaregistry.org".


Authors' Addresses

   Keith Scott
   The MITRE Corporation
   7515 Colshire Drive
   McLean, VA, California  22102
   USA

   Phone: +1-703-983-6547
   Fax:   ++1-703-983-7142
   Email: kscott@mitre.org


   Stephen Farrell
   Computer Science Department
   Trinity College
   Dublin,
   Ireland

   Phone: +353-1-896-1761
   Fax:
   Email: stephen.farrell@cs.tcd.ie
   URI:






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