[tcpm] Summary of diffs in new version: draft-ietf-tcpm-generalized-ecn-13

[Bob Briscoe <[e-mail]>]

tcpm,

We've just posted a new rev of draft-ietf-tcpm-generalized-ecn-13
You can find a link to the full diff below. Here's a summary:

Normative:

  * Changed §3.3.1 "Additional DupACK Check" to solely specify the
    Additional DupACK Check by the *receiver* of an incoming Pure ACK,
    and only refer to the other conditions for *sending* an outgoing
    ECN-capable pure ACK in §3.2.3.2 (rather than re-stating them).

Editorial

  * Reversed the rather confusing logical flow of all the sentences
    which said (paraphrasing) "You can ignore the prohibition in Section
    abc of RFC3168 against setting ECT on an xyz packet, as per Section
    4.3 of RFC8311". Replaced with "Section 4.3 o RFC8311 allows setting
    ECT on an xyz packet, by updating Section abc of RFC3168".
  * Considerable edits to the rationale in §4.4.4 "Pure ACKs: DupACK
    Tests", to explain why an exception to the RFC5681 rule against
    repeating acknowledgement of a segment is necessary in this case,
    and adding each step of the example, rather than glossing over some
    that seemed obvious (to the authors) in the previous version.
  * Changed the description of the individual draft specifying ECN in
    SCTP, now that it has been updated (for the first time since Jan 2014).
  * Updated the ref to CUBIC now it has been published as an RFC.



Bob

On 23/10/2023 22:46, [e-mail] wrote:
> A new version of Internet-Draft draft-ietf-tcpm-generalized-ecn-13.txt has
> been successfully submitted by Bob Briscoe and posted to the
> IETF repository.
>
> Name:     draft-ietf-tcpm-generalized-ecn
> Revision: 13
> Title:    ECN++: Adding Explicit Congestion Notification (ECN) to TCP Control Packets
> Date:     2023-10-23
> Group:    tcpm
> Pages:    51
> URL:https://www.ietf.org/archive/id/draft-ietf-tcpm-generalized-ecn-13.txt
> Status:https://datatracker.ietf.org/doc/draft-ietf-tcpm-generalized-ecn/
> HTML:https://www.ietf.org/archive/id/draft-ietf-tcpm-generalized-ecn-13.html
> HTMLized:https://datatracker.ietf.org/doc/html/draft-ietf-tcpm-generalized-ecn
> Diff:https://author-tools.ietf.org/iddiff?url2=draft-ietf-tcpm-generalized-ecn-13
>
> Abstract:
>
>     This document specifies an experimental modification to ECN when used
>     with TCP.  It allows the use of ECN in the IP header of the following
>     TCP packets: SYNs, SYN/ACKs, pure ACKs, Window probes, FINs, RSTs and
>     retransmissions.  This specification obsoletes RFC5562, which
>     described a different way to use ECN on SYN/ACKs alone.
>
>
>
> The IETF Secretariat
>
>

-- 
________________________________________________________________
Bob Briscoehttp://bobbriscoe.net/