[tcpm] draft-ietf-tcpm-rst-diagnostic-payload: reason-code Size and Allocation Policy

mohamed.boucadair@orange.com Wed, 22 April 2026 15:47 UTC

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To: "tcpm@ietf.org Extensions" <tcpm@ietf.org>
Thread-Topic: draft-ietf-tcpm-rst-diagnostic-payload: reason-code Size and Allocation Policy
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Date: Wed, 22 Apr 2026 15:47:20 +0000
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Subject: [tcpm] draft-ietf-tcpm-rst-diagnostic-payload: reason-code Size and Allocation Policy
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Hi all,

The reason-code is currently encoded in 32 bits with the full range being governed by Expert Review policy. The main motivation was to make sure a registered code is technically sound. In the meantime, we would like to encourage codes to be registered. Registering a reason-code allows to avoid using pen-specific codes.

Please let us know if you think that using an FCFS policy would be sufficient or if reserving an FCFS range is needed. Also, we are interested in feedback on size.
Cheers,
Med (no AD fez)
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