[ntpwg] Updated NTPv4 Protocol Specification

[David L. Mills]

Karen,

Your meeting minutes said that some aspects of the timing point issue 
were not discussed. From the absence of the point I made, I assumed that 
point had not been discussed. In any case, I am glad the issue is still 
on the stove and is to be resolved.

Dave

Odonoghue, Karen F CIV NSWCDD, W13 wrote:

>Dave,
>
>The issue of the timestamp point was discussed at the December
>meeting. A small group worked on some text that will appear in
>the next draft. This draft will be coming out soon. Hopefully
>it will sufficiently address this issue.
>
>Karen
>
>
>>-----Original Message-----
>>From: ntpwg-bounces+karen.odonoghue=navy.mil at lists.ntp.org 
>>[mailto:ntpwg-bounces+karen.odonoghue=navy.mil at lists.ntp.org] 
>>On Behalf Of David L. Mills
>>Sent: Tuesday, January 15, 2008 19:45
>>To: NTP Working Group
>>Subject: Re: [ntpwg] Updated NTPv4 Protocol Specification
>>
>>Brian,
>>
>>Two comments. First, the draft is in Unix format and has to 
>>be converted to read on a Windows machine. I don't know if 
>>this is IETF policy, but it would be consistent with the 
>>fascist views of that management.
>>
>>Second, the problem with most of the suggestions on the 
>>timing point is that they cannot be implemented. Unless the 
>>timing point is on the PHY media there is no way that 
>>hardware or software can implement it. This is the same issue 
>>raised in IEEE 2588. It must be addressed separately for each 
>>PHY, as is done in 1588. In the Ethernet case it is the 
>>beginning of the first bit following the last bit of the SOF octet.
>>
>>Dave
>>
>>Brian Haberman wrote:
>>
>>
>>>NTP WG,
>>>The latest NTPv4 protocol specification has been published. This
>>>revision should address all Last Call issues raised except for
>>>additional text on the timing reference point. I did not see any
>>>consensus on the mailing list on the text proposed by Rich 
>>>
>>Osman using
>>
>>>the LI as the reference point. Please review this version 
>>>
>>for all other
>>
>>>changes.
>>>
>>>If you have comments on the reference point for the start time,
>>>please post that to the mailing list.
>>>
>>>Regards,
>>>Brian
>>>
>>>
>>>-------- Original Message --------
>>>Subject: I-D ACTION:draft-ietf-ntp-ntpv4-proto-08.txt
>>>Date: Mon, 19 Nov 2007 12:15:01 -0500
>>>From: Internet-Drafts at ietf.org
>>>Reply-To: internet-drafts at ietf.org
>>>To: i-d-announce at ietf.org
>>>CC: ntpwg at lists.ntp.isc.org
>>>
>>>A New Internet-Draft is available from the on-line Internet-Drafts
>>>directories.
>>>This draft is a work item of the Network Time Protocol 
>>>
>>Working Group of
>>
>>>the IETF.
>>>
>>>Title : Network Time Protocol Version 4 Protocol And Algorithms
>>>Specification
>>>Author(s) : J. Burbank, et al.
>>>Filename : draft-ietf-ntp-ntpv4-proto-08.txt
>>>Pages : 108
>>>Date : 2007-11-19
>>>
>>>The Network Time Protocol (NTP) is widely used to synchronize
>>>computer clocks in the Internet. This document describes NTP Version
>>>4 (NTPv4), which is backwards compatible with NTP Version 3 (NTPv3)
>>>described in RFC 1305, as well as previous versions of the protocol.
>>>NTPv4 includes a modified protocol header to accommodate 
>>>
>>the Internet
>>
>>>Protocol Version 6 address family. NTPv4 includes fundamental
>>>improvements in the mitigation and discipline algorithms 
>>>
>>which extend
>>
>>>the potential accuracy to the tens of microseconds with modern
>>>workstations and fast LANs. It includes a dynamic server discovery
>>>scheme, so that in many cases specific server configuration is not
>>>required. It corrects certain errors in the NTPv3 design and
>>>implementation and includes an optional extension mechanism.
>>>
>>>A URL for this Internet-Draft is:
>>>
>>>
>>http://www.ietf.org/internet-drafts/draft-ietf-ntp-ntpv4-proto-08.txt
>>
>>>_______________________________________________
>>>ntpwg mailing list
>>>ntpwg at lists.ntp.org
>>>https://lists.ntp.org/mailman/listinfo/ntpwg
>>>
>>
>>_______________________________________________
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>>ntpwg at lists.ntp.org
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>>
>