Delay-Tolerant Networking
Internet Engineering Task Force (IETF) B. Sipos
Internet-Draft
Request for Comments: 9713 JHU/APL
Updates: 9171 (if approved) 3 October 2024
Intended status: January 2025
Category: Standards Track
Expires: 6 April 2025
ISSN: 2070-1721
Bundle Protocol Version 7 Administrative Record Types Registry
draft-ietf-dtn-bpv7-admin-iana-04
Abstract
This document updates RFC 9171 to clarify that a Bundle Protocol
Version 7 agent is intended to use an IANA registry for
Administrative Record types. It also makes a code point reservations
for private Private and experimental use. Experimental Use.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Administrative Record Types Registry . . . . . . . . . . . . 3
3. Security Considerations . . . . . . . . . . . . . . . . . . . 3
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3
4.1. Bundle Administrative Record Types . . . . . . . . . . . 4
5. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1. Normative References . . . . . . . . . . . . . . . . . . 4
5.2. Informative References . . . . . . . . . . . . . . . . . 5
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 5
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 5
1. Introduction
The earlier Bundle Protocol (BP) Version 6 (BPv6) defined an IANA
registry for Administrative Record type code points under [IANA-BP].
When Bundle Protocol Version 7 (BPv7) was published in [RFC9171] [RFC9171], it
identified the IANA registry for Administrative Record types but did
not update the table to be explicit about which entries applied to
which Bundle Protocol version(s). The BPv7 specification also did
not discriminate between code point reservations and unassigned
ranges for Administrative Record types.
This document updates BPv7 to explicitly use the IANA Administrative
Record type registry as described in Section 2. This document makes
a reservation of the zero value for consistency with BPv6. This
document also makes a reservation of high-valued code points for private use
Private Use and
experimental use Experimental Use in accordance with [RFC8126] to
avoid collisions with assigned code points.
1.1. Scope
This document describes updates to the IANA "Bundle Administrative
Record
type Types" registry and how a BPv7 agent is supposed to use that
registry
for identifying to identify Administrative Record types.
This document does not specify how BPv6 and BPv7 can interoperate for
overlapping code points or how a specific code point is to be
interpreted either similarly or differently between Bundle Protocol
versions. It is up to each individual Administrative Record type
specification to define how it relates to each BP version.
1.2. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
2. Administrative Record Types Registry
This document updates the requirements in Section 6.1 of [RFC9171] to
specify use of an existing IANA registry and updates that registry as
described in Section 4.1.
The code point allocated in Annex D of [CCSDS-BP] was never added to
the IANA registry. To avoid a collision, this document adds that
allocation to the registry.
Instead of using the list of types as described in Section 6.1 of
[RFC9171], a BPv7 administrative element SHALL interpret
administrative record type code values in accordance with the IANA
"Bundle Administrative Record Types" registry under [IANA-BP] for entries
having a "Bundle Protocol Version" of 7.
If an administrative element receives a not-well-formed application
data unit (ADU) or an administrative record type code which that is not
able to be processed by the element, the record SHALL be ignored by
the element. The processing of a received administrative record ADU
does not affect the fact that the bundle itself was delivered to the
administrative element or any related BPA processing of (e.g. (e.g., status
reports on) the enveloping bundle.
3. Security Considerations
This document does not define any requirements or structures which that
introduce new security considerations.
The existing security considerations of [RFC9171] still apply when
using the IANA "Bundle Administrative Record Types Types" registry.
4. IANA Considerations
This specification modifies a BPv6 registry to extend by extending it for BPv7.
4.1. Bundle Administrative Record Types
Within the "Bundle Protocol" registry group [IANA-BP], the "Bundle
Administrative Record Types" registry has been updated to include a
leftmost "Bundle Protocol Version" column. New entries have been
added and existing entries have been updated to have include BP versions
as in the following table. Table 1. This document makes no changes to the registration
procedures for this registry.
+=================+==========+==================+=================+
+=========================+=========+==================+============+
| Bundle Protocol | Value | Description | Reference |
| Version | | | |
+=================+==========+==================+=================+
+=========================+=========+==================+============+
| 6,7 | 0 | Reserved | [RFC7116] [This |
| | | | specification] RFC 9713 |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
| 6,7 | 1 | Bundle status | [RFC5050] |
| | | report | [RFC9171] |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
| 6 | 2 | Custody signal | [RFC5050] |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
| 6,7 | 3 | Unassigned | |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
| 6 | 4 | Aggregate | [CCSDS-BP] |
| | | Custody Signal | |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
| 6,7 | 5 to - 15 | Unassigned | |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+-------------------------------+
| 7 | 16 to - | Unassigned |
| | | 64383 | | |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
| 7 | 64384 to - | Reserved for | [This RFC 9713 |
| | 64511 | experimental use Experimental Use | specification] |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
| 7 | 64512 to - | Reserved for | [This RFC 9713 |
| | 65535 | private use Private Use | specification] |
+-----------------+----------+------------------+-----------------+
+-------------------------+---------+------------------+------------+
Table 1: Bundle Administrative Record Types
5. References
5.1. Normative References
[IANA-BP] IANA, "Bundle Protocol",
<https://www.iana.org/assignments/bundle/>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
[RFC9171] Burleigh, S., Fall, K., and E. Birrane, III, "Bundle
Protocol Version 7", RFC 9171, DOI 10.17487/RFC9171,
January 2022, <https://www.rfc-editor.org/info/rfc9171>.
5.2. Informative References
[CCSDS-BP] Consultative Committee for Space Data Systems, "CCSDS
Bundle Protocol Specification", CCSDS Recommended
Standard, CCSDS 734.2-B-1, September 2015,
<https://public.ccsds.org/Pubs/734x2b1.pdf>.
[RFC5050] Scott, K. and S. Burleigh, "Bundle Protocol
Specification", RFC 5050, DOI 10.17487/RFC5050, November
2007, <https://www.rfc-editor.org/info/rfc5050>.
[RFC7116] Scott, K. and M. Blanchet, "Licklider Transmission
Protocol (LTP), Compressed Bundle Header Encoding (CBHE),
and Bundle Protocol IANA Registries", RFC 7116,
DOI 10.17487/RFC7116, February 2014,
<https://www.rfc-editor.org/info/rfc7116>.
[RFC8126] Cotton, M., Leiba, B., and T. Narten, "Guidelines for
Writing an IANA Considerations Section in RFCs", BCP 26,
RFC 8126, DOI 10.17487/RFC8126, June 2017,
<https://www.rfc-editor.org/info/rfc8126>.
Acknowledgments
Author's Address
Brian Sipos
The Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Rd.
Laurel, MD 20723
United States of America
Email: brian.sipos+ietf@gmail.com