IETF Logo Mail Archive

[ntpwg] Antw: Re: I-D Action: draft-ietf-ntp-checksum-trailer-02.txt

"Ulrich Windl" <Ulrich.Windl@rz.uni-regensburg.de> Wed, 09 September 2015 07:35 UTC

Return-Path: <ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org>
X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com
Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6AF661B3C28 for <ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com>; Wed, 9 Sep 2015 00:35:17 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.91
X-Spam-Level:
X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, T_RP_MATCHES_RCVD=-0.01] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9oEDuLMlxkXV for <ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com>; Wed, 9 Sep 2015 00:35:13 -0700 (PDT)
Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id 6D9B71B3C0E for <ntp-archives-ahFae6za@lists.ietf.org>; Wed, 9 Sep 2015 00:35:12 -0700 (PDT)
Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 6319486DB95 for <ntp-archives-ahFae6za@lists.ietf.org>; Wed, 9 Sep 2015 07:35:12 +0000 (UTC)
X-Original-To: ntpwg@lists.ntp.org
Delivered-To: ntpwg@lists.ntp.org
Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 9A7A786DB00 for <ntpwg@lists.ntp.org>; Wed, 9 Sep 2015 06:35:48 +0000 (UTC)
Received: from rrzmta2.uni-regensburg.de ([194.94.155.52]) by mail1.ntp.org with esmtps (TLSv1:CAMELLIA256-SHA:256) (Exim 4.77 (FreeBSD)) (envelope-from <Ulrich.Windl@rz.uni-regensburg.de>) id 1ZZYyn-000MSN-Ow for ntpwg@lists.ntp.org; Wed, 09 Sep 2015 06:35:48 +0000
Received: from rrzmta2.uni-regensburg.de (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 726F260990 for <ntpwg@lists.ntp.org>; Wed, 9 Sep 2015 08:35:34 +0200 (CEST)
Received: from gwsmtp1.uni-regensburg.de (gwsmtp1.uni-regensburg.de [132.199.5.51]) by rrzmta2.uni-regensburg.de (Postfix) with ESMTP id 2020F60846 for <ntpwg@lists.ntp.org>; Wed, 9 Sep 2015 08:35:32 +0200 (CEST)
Received: from uni-regensburg-smtp1-MTA by gwsmtp1.uni-regensburg.de with Novell_GroupWise; Wed, 09 Sep 2015 08:35:31 +0200
Message-Id: <55EFEF51020000A10001BD49@gwsmtp1.uni-regensburg.de>
X-Mailer: Novell GroupWise Internet Agent 14.2.0 Beta
Date: Wed, 09 Sep 2015 08:35:29 +0200
From: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>
To: talmi@marvell.com, martin.burnicki@meinberg.de, Greg.Dowd@microsemi.com, mlichvar@redhat.com
References: <20150721092341.17016.69271.idtracker@ietfa.amsl.com> <20150827143339.GS24378@localhost> <700776e0c93c416f84a1f763c6644df8@IL-EXCH02.marvell.com> <20150831135058.GA11596@localhost> <e8248ac647254c909b48736aa7a6b799@IL-EXCH02.marvell.com> <20150831151545.GC11596@localhost> <8D2BF679AAC7C346848A489074F9F8BF79EA9C43@sjsrvexchmbx2.microsemi.net> <55ED498D.1090601@meinberg.de> <8D2BF679AAC7C346848A489074F9F8BF79EB099D@sjsrvexchmbx2.microsemi.net>
In-Reply-To: <8D2BF679AAC7C346848A489074F9F8BF79EB099D@sjsrvexchmbx2.microsemi.net>
Mime-Version: 1.0
Content-Disposition: inline
X-SA-Exim-Connect-IP: 194.94.155.52
X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org
X-SA-Exim-Mail-From: Ulrich.Windl@rz.uni-regensburg.de
X-SA-Exim-Version: 4.2
X-SA-Exim-Scanned: Yes (on mail1.ntp.org)
Subject: [ntpwg] Antw: Re: I-D Action: draft-ietf-ntp-checksum-trailer-02.txt
X-BeenThere: ntpwg@lists.ntp.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: IETF Working Group for Network Time Protocol <ntpwg.lists.ntp.org>
List-Unsubscribe: <http://lists.ntp.org/options/ntpwg>, <mailto:ntpwg-request@lists.ntp.org?subject=unsubscribe>
List-Archive: <http://lists.ntp.org/pipermail/ntpwg/>
List-Post: <mailto:ntpwg@lists.ntp.org>
List-Help: <mailto:ntpwg-request@lists.ntp.org?subject=help>
List-Subscribe: <http://lists.ntp.org/listinfo/ntpwg>, <mailto:ntpwg-request@lists.ntp.org?subject=subscribe>
Cc: ntpwg@lists.ntp.org
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org
Sender: ntpwg <ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org>

>>> Greg Dowd <Greg.Dowd@microsemi.com> schrieb am 08.09.2015 um 17:57 in Nachricht
<8D2BF679AAC7C346848A489074F9F8BF79EB099D@sjsrvexchmbx2.microsemi.net>:
> I won't argue about the current state of interleave mode although I think the 
> lack of development effort applied to that mode of operation is more an 
> indication of a lack of interest in this capability in the current ntp market 
> as well as recognition that there are emerging alternatives.   The capability 

I'd be careful with such statements: Occasionally it takes some time to make people aware of new features, and most scenarios have a mix of old an new NTP releases (for a variety of reasons). I'm not commenting on the value of the specific interleave mode feature, but just in general.

> of transferring stratum 1 synchronization in telecom networks using this 
> method was out well before interleave was introduced so there is no question 
> that any high resolution timestamped frame is a good source of frequency and 
> time but the ecosystem may not be able to use it.  Really the main issue with 
> the interleave mode is the need to recognize that it is in use, similar to 
> the issue discussed with the leap "smear" mode.
> 
[...]

Regards,
Ulrich


_______________________________________________
ntpwg mailing list
ntpwg@lists.ntp.org
http://lists.ntp.org/listinfo/ntpwg

v2.23.0 | Report a Bug | By Email