IETF Logo Mail Archive

[Ntp] draft-ietf-ntp-interleaved-modes-07

Doug Arnold <doug.arnold@meinberg-usa.com> Wed, 10 November 2021 22:18 UTC

Return-Path: <doug.arnold@meinberg-usa.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 B016D3A1400 for <ntp@ietfa.amsl.com>; Wed, 10 Nov 2021 14:18:49 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.1
X-Spam-Level:
X-Spam-Status: No, score=-2.1 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H2=-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=meinberg-usa.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 oYXlrYeF9mhM for <ntp@ietfa.amsl.com>; Wed, 10 Nov 2021 14:18:43 -0800 (PST)
Received: from EUR01-HE1-obe.outbound.protection.outlook.com (mail-eopbgr130055.outbound.protection.outlook.com [40.107.13.55]) (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 70EA93A10C3 for <ntp@ietf.org>; Wed, 10 Nov 2021 14:18:43 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=dy3Up5aY3ZekZbbwCsMh3qIR0ATO+nJw6TMAHdtT5fQjC4ONRO6RRmulRa4XgVShH3yY0vv8ml9NjMVf3iRv9iNSdFBWyOn3wmMzxUNwClDgS9Dgw8pu474WWOPLd8nltYjbbHDB3ESHAr8TamjKmpePzJa1vhmtUeVtaom22zASmp92y2xVp1k66aSm747CoYjQ11ju/W+tbDP26ZwF0zFYo5jUcg6mfv11+tcIhYDlyODdFc91OedcQ/VjkBoX0Zec/0zlMyQeFOXR1O1EyJeVeD2HrMcaM4Yb6+3zgeesbpNaxwIPXscAR91zR8W0H8z0IYRY6gxGmoo1zK3oDg==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=FdE9StzKgKCZqSlVVqXwYVGn0n6LEXF1fe9gpZU4wTM=; b=YMDrF5w6rqP5xUtqNPI/Lq95k960QtreMadRifuaQMFzhHrnCZvtRz40XQ/4IPClPVrFJJe8ZwGnnKWcDoPOcDo2x6qBpTnAahbQhtA8LFxb6M1YrFZKeCFYZv8OiWEyKPH4cWI7902vdL5zp+H9QbWCiiQ5HNtz9VwUiqFtxqkV7c/1nKUtIzDDt8QpZOBfRUwI2ertVSNmK0ofMQQolmDquOHOyfYH6h7KRXh+cMO+Yo99HGNWrI0cnQfQllvTxIn0NzlCODlJa42U6i1+7rnXcRrBgiANQiM/gHyJbgNgmFVc+qceS9SYP2Oo11f0fsVuxWKGLaEt8eVGbb7VZw==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=meinberg-usa.com; dmarc=pass action=none header.from=meinberg-usa.com; dkim=pass header.d=meinberg-usa.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=meinberg-usa.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=FdE9StzKgKCZqSlVVqXwYVGn0n6LEXF1fe9gpZU4wTM=; b=UGjw5VpRjwNnl2rQDCVo3X0GBW9HrsOnOyAla0fpqxHYtmaRjtNp4A32tLd5RWVD/YXqS1h6IRo4wFxJRZykKPUjYoGKYJyqEFiAhkSUEx6bJXe757tkI281raqII2+YizciUFO2h8Px9mjXFN1O5X3qHN1x+EbZBvYT7Nebz2UOAuZ3BXBCory9iYGMKvT1LNWbN/kohZJ6dMDwBcJd1dT3fN1SIYRYLVvJTAQO/N25kFbbxMjOMOlZE1FxhkCWSLdX/Npd21gX2J7ExooZsFU2gzYIdMGgg8e15ggUhYnRreR5AyC7lhulKoZaDQIxhrL1gMT+DaAm6SEP/AD7gQ==
Received: from AM7PR02MB5765.eurprd02.prod.outlook.com (2603:10a6:20b:102::15) by AM6PR02MB5430.eurprd02.prod.outlook.com (2603:10a6:20b:e3::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4669.11; Wed, 10 Nov 2021 22:18:37 +0000
Received: from AM7PR02MB5765.eurprd02.prod.outlook.com ([fe80::1595:48bb:c37e:d3a6]) by AM7PR02MB5765.eurprd02.prod.outlook.com ([fe80::1595:48bb:c37e:d3a6%5]) with mapi id 15.20.4690.016; Wed, 10 Nov 2021 22:18:37 +0000
From: Doug Arnold <doug.arnold@meinberg-usa.com>
To: Miroslav Lichvar <mlichvar@redhat.com>
CC: NTP WG <ntp@ietf.org>
Thread-Topic: draft-ietf-ntp-interleaved-modes-07
Thread-Index: AQHX1n17ODPJHwTcNEqXnyCF78O3Hw==
Date: Wed, 10 Nov 2021 22:18:37 +0000
Message-ID: <AM7PR02MB5765E6C1AA8D2583ACFF139ACF939@AM7PR02MB5765.eurprd02.prod.outlook.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=meinberg-usa.com;
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 9a918834-e968-418e-542a-08d9a4980afc
x-ms-traffictypediagnostic: AM6PR02MB5430:
x-microsoft-antispam-prvs: <AM6PR02MB54305341FD6B74A7F50593EACF939@AM6PR02MB5430.eurprd02.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:8882;
x-ms-exchange-senderadcheck: 1
x-ms-exchange-antispam-relay: 0
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: 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
x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM7PR02MB5765.eurprd02.prod.outlook.com; PTR:; CAT:NONE; SFS:(136003)(346002)(39830400003)(396003)(376002)(366004)(66446008)(186003)(122000001)(44832011)(38070700005)(66476007)(166002)(7696005)(9686003)(26005)(6506007)(4744005)(2906002)(4326008)(316002)(83380400001)(38100700002)(86362001)(6916009)(64756008)(66556008)(66946007)(8936002)(52536014)(508600001)(8676002)(91956017)(33656002)(76116006)(5660300002)(55016002)(71200400001); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: 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
Content-Type: multipart/alternative; boundary="_000_AM7PR02MB5765E6C1AA8D2583ACFF139ACF939AM7PR02MB5765eurp_"
MIME-Version: 1.0
X-OriginatorOrg: meinberg-usa.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: AM7PR02MB5765.eurprd02.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 9a918834-e968-418e-542a-08d9a4980afc
X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Nov 2021 22:18:37.4694 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: d59904cd-769f-4368-8bd0-f5f435893a38
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: g+K6fcR72aPv/Pds3AxI9TXJOC+wipfdRxem+wStgcjZoMgl9LTj8YbZZ42dz/JtVyBnkq88i90l2aIJwW2U400gr2YwpPN3XnprEv8pKbw=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR02MB5430
Archived-At: <https://mailarchive.ietf.org/arch/msg/ntp/eg0EtiMyQo1FMhdtcdtJ7jUF2Ks>
Subject: [Ntp] draft-ietf-ntp-interleaved-modes-07
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: Wed, 10 Nov 2021 22:18:50 -0000

Miroslav,

I have a couple of suggestions for draft-ietf-ntp-interleaved-modes-07<https://datatracker.ietf.org/doc/draft-ietf-ntp-interleaved-modes/>.

Change:
They do not include system calls used for sending and receiving packets, processing and queuing delays in the system, network device drivers, and hardware.

To:
They do not account for delays due to system calls used for sending and receiving packets, processing and queuing delays in the system, network device drivers, and hardware.

The word “include” is not sufficiently clear.  One could argue that the problem with software timestamps is that they do include these things.


Regarding the use of basic and interleaved “modes”:  ntp currently uses mode to indicate protocol association type, e.g. client, server, symmetric, etc.  Using mode also to indicate one-step or two-step might be confusing.  How about basic and interleaved mechanisms, or methods, or processes.  Otherwise we have to double the number of ntp modes, since each be basic or interleaved.

Doug

v2.23.0 | Report a Bug | By Email