Re: [dtn] [Last-Call] [EXTERNAL] Re: Genart last call review of draft-ietf-dtn-bpbis-17

Joe Touch <touch@strayalpha.com> Sat, 09 November 2019 04:43 UTC

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From: Joe Touch <touch@strayalpha.com>
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Date: Fri, 8 Nov 2019 20:42:52 -0800
Cc: Magnus Westerlund <magnus.westerlund@ericsson.com>, "draft-ietf-dtn-bpbis.all@ietf.org" <draft-ietf-dtn-bpbis.all@ietf.org>, "Burleigh, Scott C (US 312B)" <scott.c.burleigh=40jpl.nasa.gov@dmarc.ietf.org>, "gen-art@ietf.org" <gen-art@ietf.org>, "last-call@ietf.org" <last-call@ietf.org>, "lloyd.wood@yahoo.co.uk" <lloyd.wood@yahoo.co.uk>, "dtn@ietf.org" <dtn@ietf.org>
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To: Stewart Bryant <stewart.bryant@gmail.com>
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Subject: Re: [dtn] [Last-Call] [EXTERNAL] Re: Genart last call review of draft-ietf-dtn-bpbis-17
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The draft is more about time scales than protocols used to sync them. NTP is mentioned largely in its use of UTC. PTP supports a variety of time scales so it doesn’t add much to the discussion.

Joe

> On Nov 8, 2019, at 8:24 AM, Stewart Bryant <stewart.bryant@gmail.com>; wrote:
> 
> 
> 
>> On 8 Nov 2019, at 15:40, Joe Touch <touch@strayalpha.com <mailto:touch@strayalpha.com>> wrote:
>> 
>> Unix time != the Posix time API. One is a time scale; the other is the interface to obtain potentially many different time scales.
>> 
>> I dove into these issues here: draft-touch-time
>> 
>> Joe
> 
> Interesting draft, but I am surprised that you do not note PTP/IEEE1588.
> 
> Stewart
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