[ntpwg] Updated NTPv4 Protocol Specification

[Odonoghue, Karen F CIV NSWCDD, W13]

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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