Re: [Ntp] New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt

"Salz, Rich" <rsalz@akamai.com> Fri, 15 October 2021 18:59 UTC

Return-Path: <rsalz@akamai.com>
X-Original-To: ntp@ietfa.amsl.com
Delivered-To: ntp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7C1AC3A09B8 for <ntp@ietfa.amsl.com>; Fri, 15 Oct 2021 11:59:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.55
X-Spam-Level:
X-Spam-Status: No, score=-2.55 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.452, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=akamai.com
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 iBVpySRaE975 for <ntp@ietfa.amsl.com>; Fri, 15 Oct 2021 11:59:05 -0700 (PDT)
Received: from mx0a-00190b01.pphosted.com (mx0a-00190b01.pphosted.com [IPv6:2620:100:9001:583::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 443D93A09BB for <ntp@ietf.org>; Fri, 15 Oct 2021 11:59:05 -0700 (PDT)
Received: from pps.filterd (m0050095.ppops.net [127.0.0.1]) by m0050095.ppops.net-00190b01. (8.16.1.2/8.16.1.2) with SMTP id 19FGBNRP013347; Fri, 15 Oct 2021 19:59:03 +0100
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : mime-version; s=jan2016.eng; bh=JPmm5iY0g9pTvmxLnONBUmWLR8zw+H+GCWyJyij43MI=; b=JhP0kvyWTv483QrtEZqMMLyGRIZMg+9NhwBkuTG3awAD27iSblFB4uqjIfE8t6xiCrti Z2bGPR/pD7YAqJ4fhcVbELO9EaDbQXvloklDVpMUZveUsNR7fSFh/6R1zeTvTzD4N8G8 ZnwG7wMYPXLJ60mXlJ5XBOgk0tsObl/OJxFkrwmBcybjvMgxiZLZvKC9G7uwTlG01LVc GIFU7nPNRKqcQcTg/OE0/nZOI8sBse3QJg0+8/Fxq5gOnFyayipKU2/dn7nMOD3b0rdR /f/uULLlXcPrprOcbFqu8ifC4aDi4sY7D+Ix9Ll4KDhYg6snhwaFsVcJEwwLuHvfZbCr 2Q==
Received: from prod-mail-ppoint1 (prod-mail-ppoint1.akamai.com [184.51.33.18] (may be forged)) by m0050095.ppops.net-00190b01. with ESMTP id 3bq267hevr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 15 Oct 2021 19:59:03 +0100
Received: from pps.filterd (prod-mail-ppoint1.akamai.com [127.0.0.1]) by prod-mail-ppoint1.akamai.com (8.16.1.2/8.16.1.2) with SMTP id 19FInoAS012061; Fri, 15 Oct 2021 14:59:02 -0400
Received: from email.msg.corp.akamai.com ([172.27.123.30]) by prod-mail-ppoint1.akamai.com with ESMTP id 3bneahdske-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 15 Oct 2021 14:59:02 -0400
Received: from USMA1EX-DAG1MB1.msg.corp.akamai.com (172.27.123.101) by usma1ex-dag1mb3.msg.corp.akamai.com (172.27.123.103) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Fri, 15 Oct 2021 14:59:01 -0400
Received: from USMA1EX-DAG1MB1.msg.corp.akamai.com ([172.27.123.101]) by usma1ex-dag1mb1.msg.corp.akamai.com ([172.27.123.101]) with mapi id 15.00.1497.023; Fri, 15 Oct 2021 14:59:01 -0400
From: "Salz, Rich" <rsalz@akamai.com>
To: James <james.ietf@gmail.com>, Doug Arnold <doug.arnold@meinberg-usa.com>
CC: NTP WG <ntp@ietf.org>
Thread-Topic: [Ntp] New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt
Thread-Index: AQHXwabklO0jDBO54UuTVeYVyY+J2qvUeWoAgAAuSwD//8JqAA==
Date: Fri, 15 Oct 2021 18:59:01 +0000
Message-ID: <D340CC24-1057-48FC-AEF6-46702ED439FE@akamai.com>
References: <163386015957.12424.6997038478834885480@ietfa.amsl.com> <CAO+dDx=6baLhf9LwSMvR1F0ieuLO6NXmExYLDvcCF2tgchHs8w@mail.gmail.com> <DB8PR02MB5772AC97BFE2D7C1139EFDC0CFB89@DB8PR02MB5772.eurprd02.prod.outlook.com> <E469D9A7-7445-49D9-A8A2-82BA7BF1FA27@gmail.com> <DB8PR02MB57726795E3AD479F0CCFA778CFB99@DB8PR02MB5772.eurprd02.prod.outlook.com> <35F8FDD5-2FFB-4055-94E6-D4814CC3B740@gmail.com>
In-Reply-To: <35F8FDD5-2FFB-4055-94E6-D4814CC3B740@gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/16.54.21101001
x-ms-exchange-messagesentrepresentingtype: 1
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [172.27.164.43]
Content-Type: multipart/alternative; boundary="_000_D340CC24105748FCAEF646702ED439FEakamaicom_"
MIME-Version: 1.0
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.425, 18.0.790 definitions=2021-10-15_06:2021-10-14, 2021-10-15 signatures=0
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=734 adultscore=0 malwarescore=0 bulkscore=0 suspectscore=0 spamscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2110150114
X-Proofpoint-GUID: ThhYGgncGmXtJhVjvaW9-gzECQtKVkue
X-Proofpoint-ORIG-GUID: ThhYGgncGmXtJhVjvaW9-gzECQtKVkue
X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-15_06,2021-10-14_02,2020-04-07_01
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=679 bulkscore=0 phishscore=0 adultscore=0 mlxscore=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 priorityscore=1501 clxscore=1015 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2110150116
Archived-At: <https://mailarchive.ietf.org/arch/msg/ntp/6QeRHGQTR1jzUO7_mPo3dS_KDuk>
Subject: Re: [Ntp] New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt
X-BeenThere: ntp@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Network Time Protocol <ntp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ntp>, <mailto:ntp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ntp/>
List-Post: <mailto:ntp@ietf.org>
List-Help: <mailto:ntp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ntp>, <mailto:ntp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 15 Oct 2021 18:59:10 -0000

> The alternative approaches are as I see it:
> 1. Continue the status quo, where we have no way to signal smearing, no consistent smearing cadence, and clients avoiding mixing smeared/non-smeared servers. Nothing improves.
> 2. Introduce some means to communicate the existence of smearing, and either standardising the smearing cadence or have some way of signalling it. Clients may be able to mix same-cadence smearing servers but cannot mix between smearing and non-smearing. This only legitimises the status quo bodge and makes it explicit.

I am not a time expert. If those are the only two choices – and we need to see if others step forward – then my view is that #2 is clearly better.