Re: [Ntp] [Technical Errata Reported] RFC8877 (7012)

Steven Sommars <stevesommarsntp@gmail.com> Wed, 06 July 2022 03:37 UTC

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From: Steven Sommars <stevesommarsntp@gmail.com>
Date: Tue, 05 Jul 2022 22:37:07 -0500
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To: "MORTON JR., AL" <acmorton@att.com>
Cc: "Greg.Dowd@microchip.com" <Greg.Dowd@microchip.com>, "rfc-editor@rfc-editor.org" <rfc-editor@rfc-editor.org>, "tal.mizrahi.phd@gmail.com" <tal.mizrahi.phd@gmail.com>, "joachim.fabini@tuwien.ac.at" <joachim.fabini@tuwien.ac.at>, "ek.ietf@gmail.com" <ek.ietf@gmail.com>, "evyncke@cisco.com" <evyncke@cisco.com>, "odonoghue@isoc.org" <odonoghue@isoc.org>, "dsibold.ietf@gmail.com" <dsibold.ietf@gmail.com>, "nmalykh@ieee.org" <nmalykh@ieee.org>, "ntp@ietf.org" <ntp@ietf.org>
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Subject: Re: [Ntp] [Technical Errata Reported] RFC8877 (7012)
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>> Somewhat related:  Wireshark decodes NTP timestamp=0x00000000.xxxxxxxx
incorrectly.
Nope.  The wireshark folks pointed out that RFC5905 says:

    In either format,a value of zero is a special case representing
unknown or unsynchronized time.


Sorry for the mistake.


On Tue, Jul 5, 2022 at 5:22 PM Steven Sommars <stevesommarsntp@gmail.com>
wrote:

> Somewhat related:  Wireshark decodes NTP timestamp=0x00000000.xxxxxxxx
> incorrectly.
> https://gitlab.com/wireshark/wireshark/-/issues/18174
>
> On Tue, Jul 5, 2022 at 12:45 PM MORTON JR., AL <acmorton@att.com> wrote:
>
>> Thanks Greg!
>> (this is a Reject).
>> Al
>>
>> > -----Original Message-----
>> > From: Greg.Dowd@microchip.com <Greg.Dowd@microchip.com>
>> > Sent: Tuesday, July 5, 2022 10:38 AM
>> > To: rfc-editor@rfc-editor.org; tal.mizrahi.phd@gmail.com;
>> > joachim.fabini@tuwien.ac.at; MORTON JR., AL <acmorton@att.com>;
>> > ek.ietf@gmail.com; evyncke@cisco.com; odonoghue@isoc.org;
>> > dsibold.ietf@gmail.com
>> > Cc: nmalykh@ieee.org; ntp@ietf.org
>> > Subject: RE: [Ntp] [Technical Errata Reported] RFC8877 (7012)
>> >
>> > Please note that the NTP epoch is Jan 1 1900.  The original text is
>> correct.
>> >
>> >
>> > Greg Dowd  Microchip - Freq & Time Div.
>> >
>> > Assoc. Technical Fellow - Engineering
>> > 3870 N First St, San Jose, CA 95134
>> > Direct: 408-964-7643
>> > Greg.Dowd@microchip.com
>> >
>> > -----Original Message-----
>> > From: ntp <ntp-bounces@ietf.org> On Behalf Of RFC Errata System
>> > Sent: Monday, July 4, 2022 3:23 PM
>> > To: tal.mizrahi.phd@gmail.com; joachim.fabini@tuwien.ac.at;
>> acmorton@att.com;
>> > ek.ietf@gmail.com; evyncke@cisco.com; odonoghue@isoc.org;
>> > dsibold.ietf@gmail.com
>> > Cc: nmalykh@ieee.org; ntp@ietf.org; rfc-editor@rfc-editor.org
>> > Subject: [Ntp] [Technical Errata Reported] RFC8877 (7012)
>> >
>> > EXTERNAL EMAIL: Do not click links or open attachments unless you know
>> the
>> > content is safe
>> >
>> > The following errata report has been submitted for RFC8877, "Guidelines
>> for
>> > Defining Packet Timestamps".
>> >
>> > --------------------------------------
>> > You may review the report below and at:
>> > https://urldefense.com/v3/__https://www.rfc-
>> > editor.org/errata/eid7012__;!!BhdT!jukU3aC-
>> >
>> LO25x_iDFWb2hspXMANwTayZRkwAKICIQY2LOECRroRbULEwVTi8fHlHvF8UImcNdt5BDqg2Lg$
>> >
>> > --------------------------------------
>> > Type: Technical
>> > Reported by: Nikolai Malykh <nmalykh@ieee.org>
>> >
>> > Section: 4.2
>> >
>> > Original Text
>> > -------------
>> >    Wraparound:
>> >       This time format wraps around every 2^(32) seconds, which is
>> >       roughly 136 years.  The next wraparound will occur in the year
>> >       2036.
>> >
>> >
>> > Corrected Text
>> > --------------
>> >    Wraparound:
>> >       This time format wraps around every 2^(32) seconds, which is
>> >       roughly 136 years.  The next wraparound will occur in the year
>> >       2106.
>> >
>> >
>> > Notes
>> > -----
>> > 1970+136=2106, not 2036
>> >
>> > 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.
>> >
>> > --------------------------------------
>> > RFC8877 (draft-ietf-ntp-packet-timestamps-09)
>> > --------------------------------------
>> > Title               : Guidelines for Defining Packet Timestamps
>> > Publication Date    : September 2020
>> > Author(s)           : T. Mizrahi, J. Fabini, A. Morton
>> > Category            : INFORMATIONAL
>> > Source              : Network Time Protocols
>> > Area                : Internet
>> > Stream              : IETF
>> > Verifying Party     : IESG
>> >
>> > _______________________________________________
>> > ntp mailing list
>> > ntp@ietf.org
>> >
>> https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/ntp__;!!BhdT
>> > !jukU3aC-
>> >
>> LO25x_iDFWb2hspXMANwTayZRkwAKICIQY2LOECRroRbULEwVTi8fHlHvF8UImcNdt4G_ybaGw$
>>
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