IETF Logo Mail Archive

Re: [tsvwg] I-D Action: draft-ietf-tsvwg-udp-options-dplpmtud-06.txt

Magnus Westerlund <magnus.westerlund@ericsson.com> Thu, 06 April 2023 15:55 UTC

Return-Path: <magnus.westerlund@ericsson.com>
X-Original-To: tsvwg@ietfa.amsl.com
Delivered-To: tsvwg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C3624C152A08; Thu, 6 Apr 2023 08:55:46 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.099
X-Spam-Level:
X-Spam-Status: No, score=-2.099 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_PASS=-0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=ericsson.com
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AgFEXGK4tuWE; Thu, 6 Apr 2023 08:55:43 -0700 (PDT)
Received: from EUR04-HE1-obe.outbound.protection.outlook.com (mail-he1eur04on2070.outbound.protection.outlook.com [40.107.7.70]) (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 CA829C152A3E; Thu, 6 Apr 2023 08:54:14 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=f4Ve7N3yc6cDOEaMIeDkB+vgxB9eBG+MN1lCFwIH251SLDO7dfBlwWUKLT/K+vdLJYcDRKZ7ub8yhYOsK9Qnn9/AGuW4jaVOXnwrUzfbEKo4D/1PoJLStd+29Yyr/LF/sysCoQcdzXzo6D+Xy6WeZ8CG0beJLsgzuzfpGv15FlM45PmAm9hP3HoQsDMKb9GjV0XNq7GCxz9z8AEW059zKZ3Qn3DPA+nxaIj22wvwoVBdcOZjsLOLBGzK17RLqpkbxksW6/6Jk+GsExve/yNxO+740AUCX8YxiSMXyRu5ppvuiY972tMZEezwDkWIuoW5XAYThMgsoudewCnhd27F1Q==
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=NQfvXIBOJiH8OueKGrJ0YyNPYJm0hND59AO4GAt4rjY=; b=NZliDRssxOz0h4bnsvU6R5sWbpWN/v/f3qlFwX4Dfv2BdpUSAfuCW2Lx5X9FZr0FVJj4NRDUiWy7em3J/pMtj082I3ujdxygKqPjbJI5w9lZZkwGYUXHutjWu5lQoZUeAxZ4JmOmji5Q/CJX8G8hKVqVXAG6kzDAyHHxymIKYSyBK5769HwXqE4IVbGye5pDGMCeCShiVMxMR5ht2g947CEZUz3XdjEHOeGC5wyPrZKtEzMIFA7jOQfkmekeP8b6pUu1KbJVxb34B/iYxwrH0tvnXjKE1jOSugL87w1EejT/4cpV9SC5F1PkXUaG3koeGzGRikQjVcvLG++AtJz4wg==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=ericsson.com; dmarc=pass action=none header.from=ericsson.com; dkim=pass header.d=ericsson.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ericsson.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=NQfvXIBOJiH8OueKGrJ0YyNPYJm0hND59AO4GAt4rjY=; b=j8NKsLjtNtcZ7Pz/gH5lC64R575svxNQgtZQaOiWZ4hAMmzZEOzLYV6R7fmpFcGA/fftE8HOGAh4xEohGwXj3dLpL0Mpu2GhhsEpZirRwW5651lEmfdqQdJ2TiD0OOul1o/gsg1GAguOpymwiYTjriVQORvauvInpkolxbx46N8=
Received: from DU0PR07MB8970.eurprd07.prod.outlook.com (2603:10a6:10:40e::17) by GV2PR07MB9011.eurprd07.prod.outlook.com (2603:10a6:150:b5::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6254.33; Thu, 6 Apr 2023 15:54:10 +0000
Received: from DU0PR07MB8970.eurprd07.prod.outlook.com ([fe80::a374:8453:327a:9e50]) by DU0PR07MB8970.eurprd07.prod.outlook.com ([fe80::a374:8453:327a:9e50%4]) with mapi id 15.20.6254.035; Thu, 6 Apr 2023 15:54:10 +0000
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
To: TSVWG <tsvwg@ietf.org>, "draft-ietf-tsvwg-udp-options-dplpmtud@ietf.org" <draft-ietf-tsvwg-udp-options-dplpmtud@ietf.org>
Thread-Topic: [tsvwg] I-D Action: draft-ietf-tsvwg-udp-options-dplpmtud-06.txt
Thread-Index: AQHZThGBujgxK/YWekmO5SVQA3PGqK7tE0QAgDGP3H4=
Date: Thu, 06 Apr 2023 15:54:10 +0000
Message-ID: <DU0PR07MB8970563726A5ED4C058D8B0095919@DU0PR07MB8970.eurprd07.prod.outlook.com>
References: <167787648174.48083.6096422256408209533@ietfa.amsl.com> <CACL_3VGQEMPva-x3WbH0LTHJB=TTHcjxmxYixH5cyvKp2w1C4A@mail.gmail.com>
In-Reply-To: <CACL_3VGQEMPva-x3WbH0LTHJB=TTHcjxmxYixH5cyvKp2w1C4A@mail.gmail.com>
Accept-Language: en-US, sv-SE
Content-Language: en-GB
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=ericsson.com;
x-ms-publictraffictype: Email
x-ms-traffictypediagnostic: DU0PR07MB8970:EE_|GV2PR07MB9011:EE_
x-ms-office365-filtering-correlation-id: f2b856e4-6d85-44fa-d621-08db36b7295c
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:DU0PR07MB8970.eurprd07.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230028)(4636009)(366004)(376002)(346002)(39860400002)(136003)(396003)(451199021)(166002)(38070700005)(33656002)(86362001)(2906002)(55016003)(966005)(7696005)(91956017)(71200400001)(186003)(83380400001)(53546011)(6506007)(26005)(66574015)(44832011)(110136005)(66446008)(64756008)(66476007)(76116006)(122000001)(66556008)(478600001)(9686003)(8676002)(5660300002)(41300700001)(450100002)(66946007)(38100700002)(316002)(82960400001)(8936002)(52536014)(554374003); 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_DU0PR07MB8970563726A5ED4C058D8B0095919DU0PR07MB8970eurp_"
MIME-Version: 1.0
X-OriginatorOrg: ericsson.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: DU0PR07MB8970.eurprd07.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: f2b856e4-6d85-44fa-d621-08db36b7295c
X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Apr 2023 15:54:10.3469 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 92e84ceb-fbfd-47ab-be52-080c6b87953f
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: QKPTRJjaMRa3ZP8HFaMJTDG+ntnTgt/MNT69i+85O8Fa/HTz7yzE4XGSFReIdN3Z2GVO8oUlAUuaeg13+TDGJSir1b4cuz5V1J9WHpkU0cc=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV2PR07MB9011
Archived-At: <https://mailarchive.ietf.org/arch/msg/tsvwg/UWLsJ90sExagXm-zhDweaWrSwtw>
Subject: Re: [tsvwg] I-D Action: draft-ietf-tsvwg-udp-options-dplpmtud-06.txt
X-BeenThere: tsvwg@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: Transport Area Working Group <tsvwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tsvwg>, <mailto:tsvwg-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tsvwg/>
List-Post: <mailto:tsvwg@ietf.org>
List-Help: <mailto:tsvwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tsvwg>, <mailto:tsvwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 06 Apr 2023 15:55:46 -0000

Hi,

I have also reviewed the changes now and thank the authors for the many improvements. I think this can now progress.

I noted one nit in section 6:

This also requires the PLPMTU at the receiver to be sufficiently
large that it allows adding the RES option to the feedback packets
that are sent.  the path.

Cheers

Magnus


From: tsvwg <tsvwg-bounces@ietf.org> on behalf of C. M. Heard <heard@pobox.com>
Date: Monday, 6 March 2023 at 04:00
To: TSVWG <tsvwg@ietf.org>
Subject: Re: [tsvwg] I-D Action: draft-ietf-tsvwg-udp-options-dplpmtud-06.txt
Greetings,

I have read this update, and I am generally pleased with the changes, in particular the acknowledgment that PLPMTUD may be implemented either within the UDP transport service or by an Upper Layer protocol (or application) that uses UDPOptions.

However, there is a readability issue in Section 3: the terms REQ and RES are used in the initial part of that section before they are properly introduced (currently, that happens in Section 3.1). Would it be possible to put an introduction of REQ and RES at the beginning of Section 3?

Other than that, I am satisfied with the updated version.

Mike Heard

On Fri, Mar 3, 2023 at 12:48 PM <internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>> wrote:

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This Internet-Draft is a work item of the Transport Area Working Group WG of the IETF.

        Title           : Datagram PLPMTUD for UDP Options
        Authors         : Godred Fairhurst
                          Tom Jones
  Filename        : draft-ietf-tsvwg-udp-options-dplpmtud-06.txt
  Pages           : 16
  Date            : 2023-03-03

Abstract:
   This document specifies how a UDP Options sender implements Datagram
   Packetization Layer Path Maximum Transmission Unit Discovery
   (DPLPMTUD) as a robust method for Path Maximum Transmission Unit
   discovery.  This method uses the UDP Options packetization layer.  It
   allows an application to discover the largest size of datagram that
   can be sent across the network path.  It also provides a way to allow
   the application to periodically verify the current maximum packet
   size supported by a path and to update this when required.


The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-tsvwg-udp-options-dplpmtud/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-tsvwg-udp-options-dplpmtud-06

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-tsvwg-udp-options-dplpmtud-06


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts

v2.23.0 | Report a Bug | By Email