Re: [bmwg] [Technical Errata Reported] RFC8239 (6763)

[Lucien <[e-mail]>]

Hi Leonard,

This method depicts iteration to test a port pair. The example in the text
uses for example port pair 2 and 3. I did a drawing showing you a different
port-pair starting point (1 and 2) instead of (2 and 3). What is important
is to know what port-pair is selected and follow the methodology for that
test as described in the text.

I suggest engaging in an email conversation if there is further confusion.
I am happy to help explain any misunderstandings.

Thank you,

Lucien



On Wed, Dec 1, 2021 at 05:54 Lucien <[e-mail]> wrote:

> Iteration 1 and 2 are correct in the original text as well.
>
>
> On Wed, Dec 1, 2021 at 00:37 Leonard Yu <[e-mail]> wrote:
>
>> I was assuming the texts describing Iteration 1 & 2 were incorrect. But
>> from the drawing below, I can see it is the text describing iteration 1 and
>> 2 are incorrect.
>>
>>
>>
>> I will make a new errara report for to correct the texts for iteration 1
>> &2
>>
>> [image: Text, letter Description automatically generated]
>>
>>
>>
>> *From: *Lucien <[e-mail]>
>> *Date: *Tuesday, 30 November 2021 at 20.56
>> *To: *MORTON JR., AL <[e-mail]>
>> *Cc: *Jacob Rapp <[e-mail]>, RFC Errata System <
>> [e-mail]>, Sarah B <[e-mail]>, Warren
>> Kumari <[e-mail]>, [e-mail] <[e-mail]>, Leonard Yu <
>> [e-mail]>, [e-mail] <[e-mail]>
>> *Subject: *Re: [Technical Errata Reported] RFC8239 (6763)
>>
>> Here is a picture illustrating it, sorry my ascii skills for drawing are
>> not there yet.
>>
>>
>>
>>
>>
>>
>>
>> On Tue, Nov 30, 2021 at 11:55 MORTON JR., AL <[e-mail]> wrote:
>>
>> Thanks for your quick reply, Lucien!
>>
>> Al
>>
>>
>>
>>
>>
>> *From:* Lucien <[e-mail]>
>> *Sent:* Tuesday, November 30, 2021 2:29 PM
>> *To:* RFC Errata System <[e-mail]>
>> *Cc:* Jacob Rapp <[e-mail]>; Warren Kumari <[e-mail]>;
>> [e-mail]; MORTON JR., AL <[e-mail]>; Sarah B <
>> [e-mail]>; [e-mail]; [e-mail]
>> *Subject:* Re: [Technical Errata Reported] RFC8239 (6763)
>>
>>
>>
>> Hello,
>>
>>
>>
>> This errata is incorrect. The original text is correct.
>>
>>
>>
>> Lucien
>>
>>
>>
>> On Tue, Nov 30, 2021 at 6:47 AM RFC Errata System <
>> [e-mail]> wrote:
>>
>> The following errata report has been submitted for RFC8239,
>> "Data Center Benchmarking Methodology".
>>
>> --------------------------------------
>> You may review the report below and at:
>> https://www.rfc-editor.org/errata/eid6763
>> <https://urldefense.com/v3/__https:/www.rfc-editor.org/errata/eid6763__;!!BhdT!wScd1KMc51KUWqw0VGpG0Koz6W11ctc3VWC0cf5ClMcedcAYPseHP0RwShhp$>
>>
>> --------------------------------------
>> Type: Technical
>> Reported by: Leonard Yu <[e-mail]>
>>
>> Section: 3.2
>>
>> Original Text
>> -------------
>> Last iteration: Ingress port 1 sending line rate to egress
>> port 2, ingress port 3 sending line rate to egress port 4, etc.
>> Ingress port N-1 and port N will oversubscribe, at 1% of line
>> rate, egress port N-3 and port N-2, respectively. Measure the
>> buffer size value by multiplying the number of extra frames
>> sent by the frame size for each egress port.
>>
>> Corrected Text
>> --------------
>> Last iteration: Ingress port 1 sending line rate to egress
>> port 2, ingress port 3 sending line rate to egress port 4, etc.
>> Ingress port N-1 and port N will oversubscribe, at 1% of line
>> rate, egress port N-4 and port N-3, respectively. Measure the
>> buffer size value by multiplying the number of extra frames
>> sent by the frame size for each egress port.
>>
>> Notes
>> -----
>> If
>> #1, 1->2, 3->4, 5->6, 7->8, ... and N-1->2, N->3
>> #2, 1->2, 3->4, 5->6, 7->8, ... and N-1->4, N->5
>>
>> Then
>> #last, 1->2, 3->4, 5->6, 7->8, ... and N-1->N-4, N->N-3
>>
>> Otherwise, the general equation won't satisfy #1 and #2
>>
>> Instructions:
>> -------------
>> This erratum is currently posted as "Reported". If necessary, please
>> use "Reply All" to discuss whether it should be verified or
>> rejected. When a decision is reached, the verifying party
>> can log in to change the status and edit the report, if necessary.
>>
>> --------------------------------------
>> RFC8239 (draft-ietf-bmwg-dcbench-methodology-18)
>> --------------------------------------
>> Title               : Data Center Benchmarking Methodology
>> Publication Date    : August 2017
>> Author(s)           : L. Avramov, J. Rapp
>> Category            : INFORMATIONAL
>> Source              : Benchmarking Methodology
>> Area                : Operations and Management
>> Stream              : IETF
>> Verifying Party     : IESG
>>
>>