While editorial errata rarely harm the ability to implement, we usually verify 
them if it was a clear oversight. Also this one could be confusing as one could 
think that there is another element…


From: Tommy Pauly <[email protected]>
Date: Friday, 1. May 2026 at 06:45
To: Gorry Fairhurst <[email protected]>
Cc: Michael Welzl <[email protected]>, RFC Errata System 
<[email protected]>, "[email protected]" <[email protected]>, 
"[email protected]" <[email protected]>, "[email protected]" 
<[email protected]>, "[email protected]" <[email protected]>, 
"[email protected]" <[email protected]>
Subject: [Taps] Re: [Editorial Errata Reported] RFC9621 (8889)

It’s editorial, and probably won’t harm anyone’s ability to implement. I can 
see argument for either “verified” (because it is a correct fix) or “hold for 
document update” (because it is editorial in nature). Gorry, I’d probably leave 
to you what to do based on the overhead it would cause and the effort involved 
on your end.

Tommy


On Apr 30, 2026, at 9:47 AM, Gorry Fairhurst <[email protected]> wrote:

On 30/04/2026 02:35, Tommy Pauly wrote:

Agreed, this looks correct, and can be verified.

Thanks,
Tommy

So, we agree it is valid. Does this need to be called-out as a correction 
(i.e., The erratum is appropriate under the criteria below and should be 
available to implementers or people deploying the RFC) , or held for document 
update (The erratum is not a necessary update to the RFC. However, any future 
update of the document might consider it and determine whether it merits 
including in an update.)?

Let me know, and I will verify this.

Gorry




On Apr 25, 2026, at 10:22 AM, Michael Welzl <[email protected]> wrote:

I think this is correct.

Cheers,
Michael



On 25 Apr 2026, at 13:30, RFC Errata System <[email protected]> wrote:

The following errata report has been submitted for RFC9621,
"Architecture and Requirements for Transport Services".

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid8889

--------------------------------------
Type: Editorial
Reported by: Ingbrigt Hovind <[email protected]>

Section: 4.

Original Text
-------------
   +-----------------------------------------------------+
   |                    Application                      |
   +-+----------------+------^-------+--------^----------+
     |                |      |       |        |
   pre-               |     data     |      events
   establishment      |   transfer   |        |
     |        establishment  |   termination  |
     |                |      |       |        |
     |             +--v------v-------v+       |
   +-v-------------+   Connection(s)  +-------+----------+
   |  Transport    +--------+---------+                  |
   |  Services              |                            |
   |  API                   |  +-------------+           |
   +------------------------+--+  Framer(s)  |-----------+
                            |  +-------------+
   +------------------------|----------------------------+
   |  Transport             |                            |
   |  System                |        +-----------------+ |
   |  Implementation        |        |     Cached      | |
   |                        |        |      State      | |
   |  (Candidate Gathering) |        +-----------------+ |
   |                        |                            |
   |  (Candidate Racing)    |        +-----------------+ |
   |                        |        |     System      | |
   |                        |        |     Policy      | |
   |             +----------v-----+  +-----------------+ |
   |             |    Protocol    |                      |
   +-------------+    Stack(s)    +----------------------+
                 +-------+--------+
                         V
 +-----------------------------------------------------+
 |               Network-Layer Interface               |
 +-----------------------------------------------------+

Corrected Text
--------------
   +-----------------------------------------------------+
   |                    Application                      |
   +-+----------------+------^-------+--------^----------+
     |                |      |       |        |
   pre-               |     data     |      events
   establishment      |   transfer   |        |
     |        establishment  |   termination  |
     |                |      |       |        |
     |             +--v------v-------v+       |
   +-v-------------+   Connection(s)  +-------+----------+
   |  Transport    +--------+---------+                  |
   |  Services              |                            |
   |  API                   |  +-------------+           |
   +------------------------+--+  Framer(s)  |-----------+
                            |  +-------------+
   +------------------------|----------------------------+
   |  Transport             |                            |
   |  Services              |        +-----------------+ |
   |  Implementation        |        |     Cached      | |
   |                        |        |      State      | |
   |  (Candidate Gathering) |        +-----------------+ |
   |                        |                            |
   |  (Candidate Racing)    |        +-----------------+ |
   |                        |        |     System      | |
   |                        |        |     Policy      | |
   |             +----------v-----+  +-----------------+ |
   |             |    Protocol    |                      |
   +-------------+    Stack(s)    +----------------------+
                 +-------+--------+
                         V
 +-----------------------------------------------------+
 |               Network-Layer Interface               |
 +-----------------------------------------------------+

Notes
-----
In figure 3 the internal implementation is referred to as a "Transport System 
Implementation" instead of a "Transport Services Implementation" as in the rest 
of the document

Instructions:
-------------
This erratum is currently posted as "Reported". (If it is spam, it
will be removed shortly by the RFC Production Center.) Please
use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party
will log in to change the status and edit the report, if necessary.

--------------------------------------
RFC9621 (draft-ietf-taps-arch-19)
--------------------------------------
Title               : Architecture and Requirements for Transport Services
Publication Date    : January 2025
Author(s)           : T. Pauly, Ed., B. Trammell, Ed., A. Brunstrom, G. 
Fairhurst, C. S. Perkins
Category            : PROPOSED STANDARD
Source              : Transport Services
Stream              : IETF
Verifying Party     : IESG

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