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[Ntp] Antw: Re: Antw: [EXT] Re: NTPv5 Loop Detection without Stratum ‑ Why do we want this?

Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de> Wed, 21 September 2022 07:23 UTC

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Date: Wed, 21 Sep 2022 09:23:43 +0200
From: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>
To: "ntp@ietf.org" <ntp@ietf.org>, stenn@nwtime.org
References: <DA1F1664-8A84-4197-844A-CA7E8DAA36B8@meinberg.de> <OF43150191.DABAA331-ONC12588B5.00362DC0-C12588B5.003861AF@ptb.de> <YxckOm2+TD3tTPN4@localhost> <7d7f0656-2fd2-b781-4913-526a4be8cb62@pdmconsulting.net> <Yxg4Cba58hI/aPKw@localhost> <aba44bbc-2204-735e-daff-a29a59dac9da@pdmconsulting.net> <YxmKlSVTzOQah/nc@localhost> <10b1b402-9386-4fb3-4297-38d31bdc5c96@pdmconsulting.net> <Yx8I6sTGKTLKJr8c@localhost> <796c33e6-02dc-0665-c8a2-a143f9100bdd@pdmconsulting.net> <Yygb4pt5JdyIszWU@localhost> <23f26126-c39e-16ea-d862-c8ac706e37d5@pdmconsulting.net> <632AA6E7020000A10004DF22@gwsmtp.uni-regensburg.de> <d3c50d33-d6aa-4c09-dd6a-e94de3e9dacc@nwtime.org>
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Subject: [Ntp] Antw: Re: Antw: [EXT] Re: NTPv5 Loop Detection without Stratum ‑ Why do we want this?
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>>> Harlan Stenn <stenn@nwtime.org> schrieb am 21.09.2022 um 08:37 in
Nachricht
<d3c50d33-d6aa-4c09-dd6a-e94de3e9dacc@nwtime.org>:
> On 9/20/2022 10:53 PM, Ulrich Windl wrote:
>>>>> Danny Mayer <mayer@pdmconsulting.net> schrieb am 20.09.2022 um 15:37 in
>> Nachricht <23f26126‑c39e‑16ea‑d862‑c8ac706e37d5@pdmconsulting.net>:
>> 
>> ...
>>>> Can you please tell us in which file and on what line we can see that
>>>> difference in handling of measurements made in client/server mode and
>>>> symmetric mode?
>>>
>>> It's in there. If you don't want to read code you can read some of Dave
>>> Mills's papers. Here's one document reference and I'm sure that you can
>>> search for others. His book also talks about it.
>>>
>>> https://doc.ntp.org/reflib/onwire/ 
>> 
>> Having the RFCs, the source code of the reference implementation, and the 
> Mills paper, does not make things easier.
>> Ideally the RFCs would cover everything one needs to know.
>> 
>> ...
> 
> LOL!
> 
> Thanks for the laugh, Ulrich!

So you are confirming that the existing NTP RFCs are useless?

> 
>> Regards,
>> Ulrich

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