[Bier] Paul Wouters' Discuss on draft-ietf-bier-bar-ipa-12: (with DISCUSS)

Paul Wouters via Datatracker <noreply@ietf.org> Mon, 18 April 2022 18:47 UTC

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Date: Mon, 18 Apr 2022 11:47:14 -0700
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Subject: [Bier] Paul Wouters' Discuss on draft-ietf-bier-bar-ipa-12: (with DISCUSS)
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Paul Wouters has entered the following ballot position for
draft-ietf-bier-bar-ipa-12: Discuss

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DISCUSS:
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[1]
This document could instruct IANA to rename "240-254 Experimental Use" to
"240-254 Private and Experimental Use", since that is what this document states:

   If a BAR value is not specified in a RFC but only privately used for
   a deployment, it MUST be within the "240-254 Experimental Use" range
   of the registry.

Furthermore, the statement implies there are two different allocation types
here ("RFC" and "privately used"), but the IANA Registry shows 3 types:

   0-127        Standards Action
   128-239      Specification Required
   240-254      Experimental Use

The "Specification Required" could be a non-RFC specification.

If this is done, the Abstract should mention the IANA Registry is updated and
the IANA Considerations section should be updated.

[2]
   When a BAR value is defined, the corresponding BA and BC semantics
   SHOULD be specified.  For an IGP Algorithm to be used as a BIER IPA,
   its RA and RC semantics SHOULD be specified.

   None of the components of the BAR or IPA can be unknown. [...]

Then why are these SHOULDs not MUSTs?