The Constrained Application Protocol (CoAP)
RFC 7252

Revision differences

Document history

Date Rev. By Action
2016-12-24 18 (System) Received changes through RFC Editor sync (added Errata tag)
2015-10-14 18 (System) Notify list changed from core-chairs@ietf.org, draft-ietf-core-coap@ietf.org to (None)
2014-06-27 18 (System) IANA registries were updated to include RFC7252
2014-06-26 18 (System) RFC published
2014-06-25 18 (System) RFC Editor state changed to AUTH48-DONE from AUTH48
2014-06-23 18 (System) RFC Editor state changed to AUTH48 from AUTH48-DONE
2014-05-23 18 (System) RFC Editor state changed to AUTH48-DONE from AUTH48
2014-05-07 18 (System) RFC Editor state changed to AUTH48 from RFC-EDITOR
2014-04-29 18 (System) RFC Editor state changed to RFC-EDITOR from AUTH
2014-04-23 18 (System) RFC Editor state changed to AUTH from EDIT
2014-03-04 18 (System) RFC Editor state changed to EDIT from MISSREF
2013-08-12 18 (System) IANA Action state changed to RFC-Ed-Ack from Waiting on RFC Editor
2013-08-12 18 (System) IANA Action state changed to Waiting on RFC Editor from In Progress
2013-08-12 18 (System) IANA Action state changed to Waiting on RFC Editor from In Progress
2013-08-12 18 (System) IANA Action state changed to In Progress from Waiting on Authors
2013-07-29 18 (System) IANA Action state changed to Waiting on Authors from In Progress
2013-07-29 18 (System) IANA Action state changed to In Progress from Waiting on Authors
2013-07-26 18 (System) IANA Action state changed to Waiting on Authors from In Progress
2013-07-15 18 Cindy Morgan State changed to RFC Ed Queue from Approved-announcement sent
2013-07-15 18 (System) RFC Editor state changed to MISSREF
2013-07-15 18 (System) Announcement was received by RFC Editor
2013-07-15 18 Barry Leiba Notification list changed to : core-chairs@tools.ietf.org, draft-ietf-core-coap@tools.ietf.org
2013-07-15 18 (System) IANA Action state changed to In Progress
2013-07-15 18 Amy Vezza State changed to Approved-announcement sent from Approved-announcement to be sent
2013-07-15 18 Amy Vezza IESG has approved the document
2013-07-15 18 Amy Vezza Closed "Approve" ballot
2013-07-15 18 Amy Vezza Ballot approval text was generated
2013-07-11 18 Cindy Morgan State changed to Approved-announcement to be sent from IESG Evaluation
2013-07-10 18 Amanda Baber IANA Review state changed to IANA OK - Actions Needed from Version Changed - Review Needed
2013-07-08 18 Barry Leiba Telechat date has been changed to 2013-07-11 from 2013-05-16
2013-07-08 18 Barry Leiba State changed to IESG Evaluation from IESG Evaluation - Defer::AD Followup
2013-07-08 18 Sean Turner [Ballot comment]
Hey thanks for doing an excellent job addressing my comments.  Looking forward to progressing this one down the standards track ;)
2013-07-08 18 Sean Turner [Ballot Position Update] Position for Sean Turner has been changed to Yes from Discuss
2013-07-01 18 Martin Stiemerling [Ballot comment]
-18 addresses all of my concerns and thank you for addressing them!
2013-07-01 18 Martin Stiemerling [Ballot Position Update] Position for Martin Stiemerling has been changed to No Objection from Discuss
2013-06-28 18 Pete Resnick
[Ballot comment]
Thanks for addressing my more serious concerns. Nothing blocking, but for your consideration:

By section number:

4.2/4.3: "Reject" in the ...
2013-06-28 18 Pete Resnick [Ballot Position Update] Position for Pete Resnick has been changed to Yes from Discuss
2013-06-28 18 Zach Shelby New version available: draft-ietf-core-coap-18.txt
2013-06-06 17 Martin Stiemerling
[Ballot discuss]
Updated based on - 17.

A well-written document and I have a few points to discuss.

Here are the issues (based on my own ...
2013-06-06 17 Martin Stiemerling Ballot discuss text updated for Martin Stiemerling
2013-06-06 17 Martin Stiemerling
[Ballot discuss]
A well-written document and I have a few points to discuss.

The congestion avoidance mechanisms look ok, but I assume we will get ...
2013-06-06 17 Martin Stiemerling Ballot discuss text updated for Martin Stiemerling
2013-06-03 17 Martin Stiemerling
[Ballot discuss]
A well-written document and I have a few points to discuss.

The congestion avoidance mechanisms look ok, but I assume we will get ...
2013-06-03 17 Martin Stiemerling Ballot discuss text updated for Martin Stiemerling
2013-06-03 17 Martin Stiemerling
[Ballot discuss]
A well-written document and I have a few points to discuss.

The congestion avoidance mechanisms look ok, but I assume we will get ...
2013-06-03 17 Martin Stiemerling Ballot comment and discuss text updated for Martin Stiemerling
2013-05-27 17 Pete Resnick
[Ballot discuss]
I'm still worried about 5.10.4:

                              ...
2013-05-27 17 Pete Resnick
[Ballot comment]
By section number:

3.

  Code:  8-bit unsigned integer, split into a 3-bit class (most
      significant bits) and a ...
2013-05-27 17 Pete Resnick Ballot comment and discuss text updated for Pete Resnick
2013-05-26 17 Stephen Farrell
[Ballot comment]

Thanks for addressing my discuss points. I've left the comments
in below from last time, but didn't check 'em against -17 ...
2013-05-26 17 Stephen Farrell [Ballot Position Update] Position for Stephen Farrell has been changed to Yes from Discuss
2013-05-26 17 (System) Sub state has been changed to AD Followup from Revised ID Needed
2013-05-26 17 Carsten Bormann IANA Review state changed to Version Changed - Review Needed from IANA - Not OK
2013-05-26 17 Carsten Bormann New version available: draft-ietf-core-coap-17.txt
2013-05-20 16 Spencer Dawkins
[Ballot comment]
On 5/20/2013 3:35 PM, Carsten Bormann wrote:
> Spencer,
>
> thank you for this attentive review.
> I have ...
2013-05-20 16 Spencer Dawkins [Ballot Position Update] Position for Spencer Dawkins has been changed to Yes from Discuss
2013-05-16 16 Cindy Morgan State changed to IESG Evaluation - Defer::Revised I-D Needed from IESG Evaluation - Defer
2013-05-16 16 Benoit Claise
[Ballot comment]
I lacked some time to review the draft details. However, after a discussion with Joel Jaeggli, and with the OPS DIR review from ...
2013-05-16 16 Benoit Claise [Ballot Position Update] New position, No Objection, has been recorded for Benoit Claise
2013-05-16 16 Jari Arkko
[Ballot comment]
Thank you for this important work and well written specification. While there are aspects that I would personally have done differently and some ...
2013-05-16 16 Jari Arkko Ballot comment text updated for Jari Arkko
2013-05-16 16 Jari Arkko
[Ballot comment]
Thank you for this important work and well written specification. While there are aspects that I would personally have done differently, I believe ...
2013-05-16 16 Jari Arkko [Ballot Position Update] New position, Yes, has been recorded for Jari Arkko
2013-05-16 16 Gonzalo Camarillo [Ballot Position Update] New position, No Objection, has been recorded for Gonzalo Camarillo
2013-05-15 16 Sean Turner
[Ballot discuss]
Thanks for a clear draft.  Makes things so much easier to review.  Just want to discuss a couple of things before ...
2013-05-15 16 Sean Turner
[Ballot comment]
0) s1.2: Is the "CoAP-to-CoAP proxy" definition missing?  s5.7 refers to s1.2 for the definition but that term is ...
2013-05-15 16 Sean Turner [Ballot Position Update] New position, Discuss, has been recorded for Sean Turner
2013-05-15 16 Martin Stiemerling
[Ballot discuss]
A well-written document and I have a few points to discuss.

The congestion avoidance mechanisms look ok, but I assume we will get ...
2013-05-15 16 Martin Stiemerling Ballot discuss text updated for Martin Stiemerling
2013-05-15 16 Spencer Dawkins
[Ballot comment]
I think this specification is well-written, it's important, and a lot of people will need to read it - that's why I ...
2013-05-15 16 Spencer Dawkins Ballot comment text updated for Spencer Dawkins
2013-05-15 16 Spencer Dawkins
[Ballot discuss]
Note that I plan to ballot Yes, after we resolve these questions.

I have three points - the first one is the one I ...
2013-05-15 16 Spencer Dawkins
[Ballot comment]
I think this specification is well-written, it's important, and a lot of people will need to read it - that's why I ...
2013-05-15 16 Spencer Dawkins [Ballot Position Update] New position, Discuss, has been recorded for Spencer Dawkins
2013-05-15 16 Richard Barnes
[Ballot comment]
Overall, this is a very nicely written specification.  Thanks! 

In Section 2.2., are requests and responses in 1-1 correspondence?  ...
2013-05-15 16 Richard Barnes [Ballot Position Update] Position for Richard Barnes has been changed to Yes from Discuss
2013-05-13 16 Stephen Farrell
[Ballot discuss]

I will (still:-) end up balloting yes for his.
Just one DISCUSS point remaining.

(1) Cleared, but see comment below

(2) Cleared.

(3 ...
2013-05-13 16 Stephen Farrell
[Ballot comment]

--- former discuss points

(1) I think you made a change to 5.6 for this but I still
think (now at COMMENT level ...
2013-05-13 16 Stephen Farrell Ballot comment and discuss text updated for Stephen Farrell
2013-05-09 16 (System) IANA Review state changed to IANA - Not OK from IANA - Review Needed
2013-05-09 16 Pearl Liang
in tracker
IANA Actions - YES

NOTE: This revised review is based on a new version (-16) of the draft
document.

We have a question about ...
2013-05-01 16 Carsten Bormann New version available: draft-ietf-core-coap-16.txt
2013-04-29 15 Adrian Farrel
[Ballot comment]
I want to thank the authors and WG for producing this specification. I
think it may be one of the more important pieces ...
2013-04-29 15 Adrian Farrel [Ballot Position Update] New position, Yes, has been recorded for Adrian Farrel
2013-04-24 15 Joel Jaeggli
[Ballot comment]
I support some of the points raised by mehmet against draft 13 (addressed by carsten) which ultimately are not likely to be resolved ...
2013-04-24 15 Joel Jaeggli [Ballot Position Update] New position, No Objection, has been recorded for Joel Jaeggli
2013-04-24 15 Ted Lemon
[Ballot comment]
P. 14: informative reference to HHGTG almost, but not entirely,
helpful.  :)

P. 15: why start at version 1 when you can only ...
2013-04-24 15 Ted Lemon [Ballot Position Update] New position, No Objection, has been recorded for Ted Lemon
2013-04-24 15 Richard Barnes
[Ballot discuss]
Overall, this is a very nicely written specification.  Thanks!  There's just one point I think needs action on before I ...
2013-04-24 15 Richard Barnes
[Ballot comment]
In Section 2.2., are requests and responses in 1-1 correspondence?  Or can a single request receive more than one response?

In ...
2013-04-24 15 Richard Barnes [Ballot Position Update] New position, Discuss, has been recorded for Richard Barnes
2013-04-24 15 Sean Turner Telechat date has been changed to 2013-05-16 from 2013-04-25
2013-04-24 15 Sean Turner State changed to IESG Evaluation - Defer from IESG Evaluation
2013-04-24 15 Stephen Farrell
[Ballot discuss]

I will end up balloting yes for his. I think its good work
and has lots of implementations. Note also that some of ...
2013-04-24 15 Stephen Farrell
[Ballot comment]

general: 112 pages, sheesh;-) Seriously though, there is
repetition here that'd be better not there and fewer words
is better. Too late ...
2013-04-24 15 Stephen Farrell [Ballot Position Update] New position, Discuss, has been recorded for Stephen Farrell
2013-04-24 15 Dan Romascanu Request for Telechat review by GENART Completed: Almost Ready. Reviewer: Dan Romascanu.
2013-04-24 15 Stewart Bryant
[Ballot comment]
I am entering no-objection on the basis that this has no impact on the routing layer and I am confident that the applications ...
2013-04-24 15 Stewart Bryant [Ballot Position Update] New position, No Objection, has been recorded for Stewart Bryant
2013-04-24 15 Martin Stiemerling
[Ballot discuss]
A well-written document and I have a few points to discuss.

The congestion avoidance mechanisms look ok, but I assume we will get ...
2013-04-24 15 Martin Stiemerling
[Ballot comment]
1) Endpoint vs. host
This document uses the term "endpoint" to refer to the combination of address and port, and possibly also security ...
2013-04-24 15 Martin Stiemerling Ballot comment and discuss text updated for Martin Stiemerling
2013-04-24 15 Martin Stiemerling
[Ballot discuss]
A well-written document and I have a few points to discuss, but I still need to write them in a comprehensive way.

A ...
2013-04-24 15 Martin Stiemerling [Ballot Position Update] New position, Discuss, has been recorded for Martin Stiemerling
2013-04-23 15 Brian Haberman [Ballot comment]
Thank you for a well-written document.  I do support Pete's DISCUSS points.
2013-04-23 15 Brian Haberman [Ballot Position Update] New position, No Objection, has been recorded for Brian Haberman
2013-04-22 15 Pete Resnick
[Ballot discuss]
The items here are very borderline in my book for DISCUSS items; I'm happy to be talked out of them. But I ...
2013-04-22 15 Pete Resnick
[Ballot comment]
By section number:

1. The reference to [I-D.ietf-lwig-terminology] worries me, given that it is not even in LC yet.

2.1:

  ...
2013-04-22 15 Pete Resnick [Ballot Position Update] New position, Discuss, has been recorded for Pete Resnick
2013-04-18 15 Jean Mahoney Request for Telechat review by GENART is assigned to Dan Romascanu
2013-04-17 15 (System) IANA Review state changed to Version Changed - Review Needed from IANA - Not OK
2013-04-17 15 Barry Leiba State changed to IESG Evaluation from Waiting for AD Go-Ahead::AD Followup
2013-04-17 15 Barry Leiba Ballot has been issued
2013-04-17 15 Barry Leiba [Ballot Position Update] New position, Yes, has been recorded for Barry Leiba
2013-04-17 15 Barry Leiba Created "Approve" ballot
2013-04-14 15 Barry Leiba Placed on agenda for telechat - 2013-04-25
2013-04-14 15 (System) Sub state has been changed to AD Followup from Revised ID Needed
2013-04-14 15 Carsten Bormann New version available: draft-ietf-core-coap-15.txt
2013-04-04 14 Tero Kivinen Request for Last Call review by SECDIR Completed: Has Nits. Reviewer: Alexey Melnikov.
2013-03-31 14 Barry Leiba State changed to Waiting for AD Go-Ahead::Revised I-D Needed from Waiting for AD Go-Ahead
2013-03-28 14 Barry Leiba Notification list changed to : core-chairs@tools.ietf.org, draft-ietf-core-coap@tools.ietf.org, core@ietf.org
2013-03-27 14 Dan Romascanu Request for Last Call review by GENART Completed: Almost Ready. Reviewer: Dan Romascanu.
2013-03-27 14 Dan Romascanu Request for Last Call review by GENART is assigned to Dan Romascanu
2013-03-27 14 (System) State changed to Waiting for AD Go-Ahead from In Last Call
2013-03-26 14 Pearl Liang
IESG/Authors/WG Chairs:

IANA has reviewed draft-ietf-core-coap-14.  Authors should review the comments and/or questions below.  Please report any inaccuracies and respond ...
2013-03-21 14 Tero Kivinen Request for Last Call review by SECDIR is assigned to Alexey Melnikov
2013-03-14 14 Jean Mahoney Request for Last Call review by GENART is assigned to Dan Romascanu
2013-03-13 14 Cindy Morgan IANA Review state changed to IANA Review Needed
2013-03-13 14 Cindy Morgan
The following Last Call announcement was sent out:

From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
CC: < ...
2013-03-13 14 Cindy Morgan State changed to In Last Call from Last Call Requested
2013-03-13 14 Barry Leiba Last call was requested
2013-03-13 14 Barry Leiba Last call announcement was generated
2013-03-13 14 Barry Leiba Ballot approval text was generated
2013-03-13 14 Barry Leiba State changed to Last Call Requested from AD Evaluation
2013-03-13 14 Barry Leiba State changed to AD Evaluation from Publication Requested
2013-03-13 14 Barry Leiba Changed protocol writeup
2013-03-13 14 Barry Leiba Ballot writeup was changed
2013-03-13 14 Barry Leiba State changed to Publication Requested from AD is watching
2013-03-13 14 Andrew McGregor IETF WG state changed to Submitted to IESG for Publication from WG Consensus: Waiting for Write-Up
2013-03-13 14 Andrew McGregor Changed protocol writeup
2013-03-13 14 Andrew McGregor Changed consensus to Yes from Unknown
2013-03-13 14 Carsten Bormann IETF WG state changed to WG Consensus: Waiting for Write-Up from Waiting for WG Chair Go-Ahead
2013-03-13 14 Carsten Bormann IETF WG state changed to Waiting for WG Chair Go-Ahead from In WG Last Call
2013-03-12 14 Carsten Bormann New version available: draft-ietf-core-coap-14.txt
2013-01-08 13 Andrew McGregor Changed shepherd to Andrew McGregor
2012-12-07 13 Barry Leiba Ballot writeup was changed
2012-12-07 13 Barry Leiba Ballot writeup was generated
2012-12-07 13 Barry Leiba Doing AD review in parallel with working group last call (which ends 21 Dec).
2012-12-07 13 Carsten Bormann IETF state changed to In WG Last Call from WG Document
2012-12-06 13 Carsten Bormann New version available: draft-ietf-core-coap-13.txt
2012-10-01 12 Carsten Bormann New version available: draft-ietf-core-coap-12.txt
2012-07-16 11 Carsten Bormann New version available: draft-ietf-core-coap-11.txt
2012-07-05 10 Barry Leiba Responsible AD changed to Barry Leiba from Peter Saint-Andre
2012-06-25 10 Carsten Bormann New version available: draft-ietf-core-coap-10.txt
2012-03-12 09 Zach Shelby New version available: draft-ietf-core-coap-09.txt
2011-10-31 08 (System) New version available: draft-ietf-core-coap-08.txt
2011-07-08 07 (System) New version available: draft-ietf-core-coap-07.txt
2011-05-03 06 (System) New version available: draft-ietf-core-coap-06.txt
2011-03-14 05 (System) New version available: draft-ietf-core-coap-05.txt
2011-01-24 04 (System) New version available: draft-ietf-core-coap-04.txt
2010-10-25 03 (System) New version available: draft-ietf-core-coap-03.txt
2010-09-27 02 (System) New version available: draft-ietf-core-coap-02.txt
2010-07-16 08 Peter Saint-Andre Draft Added by Peter Saint-Andre in state AD is watching
2010-07-08 01 (System) New version available: draft-ietf-core-coap-01.txt
2010-06-07 00 (System) New version available: draft-ietf-core-coap-00.txt