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Re: [Ntp] NTPv5: big picture

Doug Arnold <doug.arnold@meinberg-usa.com> Mon, 04 January 2021 16:05 UTC

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From: Doug Arnold <doug.arnold@meinberg-usa.com>
To: Hal Murray <hmurray@megapathdsl.net>
CC: NTP WG <ntp@ietf.org>
Thread-Topic: [Ntp] NTPv5: big picture
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Date: Mon, 04 Jan 2021 16:05:47 +0000
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Subject: Re: [Ntp] NTPv5: big picture
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Separating the algorithms from the message formats, and sequence allows for more flexibility for niche applications.  I know of a company that successfully sells a proprietary non-standard variant of ntpv4 for just this purpose.  More accuracy can be achieved with on path support, higher message rates and different servo filters.  

Doug

On 1/1/21, 4:57 PM, "Hal Murray" <hmurray@megapathdsl.net> wrote:


    doug.arnold@meinberg-usa.com said:
    > I would say that the unifying themes for ntpv5 are greater flexibility, and
    > higher accuracy, compared to ntpv4.   

    Do you have any ideas on how to improve accuracy?

    What are you thinking of for flexibility?  There has been a lot of pressure to 
    require feature X.  Examples are TAI-UTC offset and authentication.  That 
    seems like reducing flexibility.

    -- 
    These are my opinions.  I hate spam.

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