[dtn] [Technical Errata Reported] RFC9171 (7881)

RFC Errata System <rfc-editor@rfc-editor.org> Wed, 03 April 2024 18:00 UTC

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Subject: [dtn] [Technical Errata Reported] RFC9171 (7881)
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The following errata report has been submitted for RFC9171,
"Bundle Protocol Version 7".

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid7881

--------------------------------------
Type: Technical
Reported by: John Huff <jh571912@ohio.edu>

Section: 6.1.1

Original Text
-------------
   The first element of each bundle status item SHALL be a status
   indicator, a Boolean value indicating whether or not the
   corresponding bundle status is asserted, encoded as a CBOR Boolean
   value.

Corrected Text
--------------
   The first element of each bundle status item SHALL be a status
   indicator, a Boolean value indicating whether or not the
   corresponding bundle status is asserted, encoded as a CBOR simple
   value.  A value of 'true' SHALL be encoded as a CBOR simple value
   with additional information 21.  A value of 'false' SHALL be encoded
   as a CBOR simple value with additional information 20.

Notes
-----
The CBOR spec does not define a 'Boolean' type (RFC8949). It's become common practice to encode boolean values as simple values (major type 7), with additional information 21 indicating 'true' and additional information 20 indicating 'false' (RFC9254, RFC8152). However, this should be explicitly stated for clarity.

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--------------------------------------
RFC9171 (draft-ietf-dtn-bpbis-31)
--------------------------------------
Title               : Bundle Protocol Version 7
Publication Date    : January 2022
Author(s)           : S. Burleigh, K. Fall, E. Birrane, III
Category            : PROPOSED STANDARD
Source              : Delay/Disruption Tolerant Networking
Stream              : IETF
Verifying Party     : IESG