[tcpm] Lars Eggert's No Objection on draft-ietf-tcpm-hystartplusplus-13: (with COMMENT)

Lars Eggert via Datatracker <noreply@ietf.org> Mon, 13 February 2023 14:55 UTC

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Date: Mon, 13 Feb 2023 06:55:34 -0800
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Subject: [tcpm] Lars Eggert's No Objection on draft-ietf-tcpm-hystartplusplus-13: (with COMMENT)
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Lars Eggert has entered the following ballot position for
draft-ietf-tcpm-hystartplusplus-13: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

# GEN AD review of draft-ietf-tcpm-hystartplusplus-13

CC @larseggert

Thanks to Stewart Bryant for the General Area Review Team (Gen-ART) review
(https://mailarchive.ietf.org/arch/msg/gen-art/t0F_6gKPTPrCO6Lo9IvuVwUHY88).

## Comments

### Section 4.2, paragraph 0
```
  4.2.  Algorithm Details
```
I found this intermingling of prose and pseudocode hard to follow. It would be
better to have a full description of the algorithm in prose, plus a full
pseudocode implementation (that used loops, etc.)

### Section 4.2, paragraph 4
```
     lastRoundMinRTT = currentRoundMinRTT
     currentRoundMinRTT = infinity
     rttSampleCount = 0
```
currentRoundMinRTT is used in the first line but only initialized in the second
line - swap?

### Section 4.2, paragraph 21
```
     If CSS_ROUNDS rounds are complete, enter congestion avoidance.

     ssthresh = cwnd
```
Is this assignment part of entering congestion avoidance?

### Section 4.2, paragraph 21
```
     If loss or ECN-marking is observed anytime during standard slow start
     or CSS, enter congestion avoidance.

     ssthresh = cwnd
```
Is this assignment part of entering congestion avoidance?

### Inclusive language

Found terminology that should be reviewed for inclusivity; see
https://www.rfc-editor.org/part2/#inclusive_language for background and more
guidance:

 * Term `traditional`; alternatives might be `classic`, `classical`, `common`,
   `conventional`, `customary`, `fixed`, `habitual`, `historic`,
   `long-established`, `popular`, `prescribed`, `regular`, `rooted`,
   `time-honored`, `universal`, `widely used`, `widespread`

## Nits

All comments below are about very minor potential issues that you may choose to
address in some way - or ignore - as you see fit. Some were flagged by
automated tools (via https://github.com/larseggert/ietf-reviewtool), so there
will likely be some false positives. There is no need to let me know what you
did with these suggestions.

### Typos

#### Section 1, paragraph 2
```
-    a novel Conservative Slow Start (CSS) phase is used to determine
-       -- ^
+    a new Conservative Slow Start (CSS) phase is used to determine
+        ^
```

### Grammar/style

#### Section 5, paragraph 2
```
dropping data packets or their acknowledgments. The ACK division attack outl
                               ^^^^^^^^^^^^^^^
```
Do not mix variants of the same word ("acknowledgment" and "acknowledgement")
within a single text.

## Notes

This review is in the ["IETF Comments" Markdown format][ICMF], You can use the
[`ietf-comments` tool][ICT] to automatically convert this review into
individual GitHub issues. Review generated by the [`ietf-reviewtool`][IRT].

[ICMF]: https://github.com/mnot/ietf-comments/blob/main/format.md
[ICT]: https://github.com/mnot/ietf-comments
[IRT]: https://github.com/larseggert/ietf-reviewtool