Extended Tokens and Stateless Clients in the Constrained Application Protocol (CoAP)
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: email@example.com, firstname.lastname@example.org, Carsten Bormann <email@example.com>, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, The IESG <email@example.com>, firstname.lastname@example.org Subject: Protocol Action: 'Extended Tokens and Stateless Clients in the Constrained Application Protocol (CoAP)' to Proposed Standard (draft-ietf-core-stateless-04.txt) The IESG has approved the following document: - 'Extended Tokens and Stateless Clients in the Constrained Application Protocol (CoAP)' (draft-ietf-core-stateless-04.txt) as Proposed Standard This document is the product of the Constrained RESTful Environments Working Group. The IESG contact persons are Adam Roach, Alexey Melnikov and Barry Leiba. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-core-stateless/
Technical Summary This is a standards-track update to RFC 7252 (CoAP) and RFC 8323 (CoAP-TCP/TLS), updating the semantics of the TKL (token length) field to support extended-length tokens, and defining how to use these for placing requests with reduced state-keeping requirements. Working Group Summary There was considerable trepidation about touching the basic format of CoAP messages, but there is now consensus that the present approach is minimally invasive and a good way to solve the requirement for reducing per-request state in certain cases, as required by 6TiSCH and other technologies. Document Quality The document has received reviews both from core CoRE members and members of the communities that intend to make use of it. Implementation efforts likely will be focused initially on the environments using the dependent documents; we have not surveyed that yet. Personnel Carsten Bormann is the document shepherd, and Barry Leiba is the responsible AD.