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Re: [Ntp] I-D Action: draft-ietf-ntp-packet-timestamps-08.txt

Doug Arnold <doug.arnold@meinberg-usa.com> Tue, 25 February 2020 21:03 UTC

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From: Doug Arnold <doug.arnold@meinberg-usa.com>
To: "i-d-announce@ietf.org" <i-d-announce@ietf.org>, "ntp@ietf.org" <ntp@ietf.org>
Thread-Topic: [Ntp] I-D Action: draft-ietf-ntp-packet-timestamps-08.txt
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Date: Tue, 25 Feb 2020 21:03:12 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ntp/VRi00HgpjHjpkT_Jm0y-qlfe3w4>
Subject: Re: [Ntp] I-D Action: draft-ietf-ntp-packet-timestamps-08.txt
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This is a useful informative document.

One comment:  In the discussion of PTP timestamps, it might be worth talking about the correctionField.  This field is intended to be used to make various types of corrections to the PTP timestamps, including the ability to add sub ns resolution to the timestamps.

Doug

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From: ntp <ntp-bounces@ietf.org> on behalf of internet-drafts@ietf.org <internet-drafts@ietf.org>
Sent: Monday, February 24, 2020 5:39 AM
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Cc: ntp@ietf.org <ntp@ietf.org>
Subject: [Ntp] I-D Action: draft-ietf-ntp-packet-timestamps-08.txt


A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Network Time Protocol WG of the IETF.

        Title           : Guidelines for Defining Packet Timestamps
        Authors         : Tal Mizrahi
                          Joachim Fabini
                          Al Morton
        Filename        : draft-ietf-ntp-packet-timestamps-08.txt
        Pages           : 21
        Date            : 2020-02-24

Abstract:
   Various network protocols make use of binary-encoded timestamps that
   are incorporated in the protocol packet format, referred to as packet
   timestamps for short.  This document specifies guidelines for
   defining packet timestamp formats in networking protocols at various
   layers.  It also presents three recommended timestamp formats.  The
   target audience of this document includes network protocol designers.
   It is expected that a new network protocol that requires a packet
   timestamp will, in most cases, use one of the recommended timestamp
   formats.  If none of the recommended formats fits the protocol
   requirements, the new protocol specification should specify the
   format of the packet timestamp according to the guidelines in this
   document.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ntp-packet-timestamps/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ntp-packet-timestamps-08
https://datatracker.ietf.org/doc/html/draft-ietf-ntp-packet-timestamps-08

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ntp-packet-timestamps-08


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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