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Delay-Tolerant Networking Bundle Protocol IANA Registries
RFC 6255

Internet Research Task Force (IRTF)                          M. Blanchet
Request for Comments: 6255                                      Viagenie
Category: Informational                                         May 2011
ISSN: 2070-1721

       Delay-Tolerant Networking Bundle Protocol IANA Registries

Abstract

   The Delay-Tolerant Networking (DTN) Research Group research group has
   defined many protocols such as the Bundle Protocol and Licklider
   Transmission Protocol.  The specifications of these protocols contain
   fields that are subject to a registry.  For the purpose of its
   research work, the group 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
   executed by IANA.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Research Task Force
   (IRTF).  The IRTF publishes the results of Internet-related research
   and development activities.  These results might not be suitable for
   deployment.  This RFC represents the consensus of the Delay-Tolerant
   Network Research Group of the Internet Research Task Force (IRTF).
   Documents approved for publication by the IRSG are not a candidate
   for any level of Internet Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6255.

Copyright Notice

   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
   carefully, as they describe your rights and restrictions with respect
   to this document.

Blanchet                      Informational                     [Page 1]
RFC 6255                   DTN IANA Registries                  May 2011

Table of Contents

   1. Introduction ....................................................2
   2. Treatment of Flag Fields Encoded Using SDNVs ....................2
   3. Bundle Protocol .................................................3
      3.1. Bundle Block Types .........................................3
      3.2. Primary Bundle Protocol Version ............................3
      3.3. Bundle Processing Control Flags ............................4
      3.4. Block Processing Control Flags .............................5
      3.5. Bundle Status Report Flags .................................6
      3.6. Bundle Status Report Reason Codes ..........................7
      3.7. Bundle Custody Signal Reason Codes .........................7
   4. Security Considerations .........................................8
   5. IANA Considerations .............................................8
   6. Acknowledgements ................................................8
   7. References ......................................................9
      7.1. Normative References .......................................9
      7.2. Informative References .....................................9

1.  Introduction

   The DTNRG research group has defined many protocols relevant to the
   DTN architecture [RFC4838] such as the Bundle Protocol [RFC5050] and
   Licklider Transmission Protocol [RFC5326].  The specifications of
   these protocols contain fields that are subject to a registry.  For
   the purpose of its research work, the group created ad hoc registries
   (http://www.dtnrg.org/wiki/AssignedNamesAndNumbers).  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
   executed by IANA.

2.  Treatment of Flag Fields Encoded Using SDNVs

   The DTN protocols use several extensible bit flag fields that are
   encoded as Self-Delimiting Numeric Values (SDNVs) as defined in
   Section 4.1 of [RFC5050].  For these fields, the registry specifies
   the allocation and usage of bit positions within the unencoded field.
   The SDNV encoding treats the ensemble of bits in the unencoded value
   as a numeric value to be encoded on transmission and decoded on
   reception as described in [RFC5050].

   Processing of SDNV-encoded flags is discussed in [RFC6256].

   Section 4.1 of [RFC5050] specifies that implementations are not
   required to handle SDNVs with more than 64 bits in their unencoded

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