IETF Logo Mail Archive

Re: [dhcwg] Yangdoctors early review of draft-ietf-dhc-dhcpv6-yang-19

"Acee Lindem (acee)" <acee@cisco.com> Wed, 19 May 2021 13:38 UTC

Return-Path: <acee@cisco.com>
X-Original-To: dhcwg@ietfa.amsl.com
Delivered-To: dhcwg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BCCD03A0FDA; Wed, 19 May 2021 06:38:01 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.595
X-Spam-Level:
X-Spam-Status: No, score=-9.595 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, RCVD_IN_DNSWL_BLOCKED=0.001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com header.b=BJ9udUGw; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=MGBmZPFg
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 pu6jbKBRBE0W; Wed, 19 May 2021 06:37:56 -0700 (PDT)
Received: from rcdn-iport-7.cisco.com (rcdn-iport-7.cisco.com [173.37.86.78]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B06D83A0FD9; Wed, 19 May 2021 06:37:55 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3454; q=dns/txt; s=iport; t=1621431475; x=1622641075; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=d9OVfztfqmoixltUvchBCn2l2h0b8xAwmzL6F3+cCqE=; b=BJ9udUGwnWOIGNWSYia9wyZruC7vfZVVlME7bVGa+PYjkmP5KPRBgCKb Nk9YC2ex4CV5qc7vt4iFzPQ8xh3So2Z6k10igfpBngc6S9yvsky3E1Fh/ piConPAOhZVMMeJzp2Yo2gydex0OTidIwjgTO4tfT2ZT3vhoxSJbiOJPQ M=;
IronPort-PHdr: A9a23:WZCd9xzyNDEI/VXXCzPHngc9DxPP8537Ox5T4Z0i2PpCcaWmqpLlOkGXpfBgl0TAUoiT7fVYw/HXvKbtVS1lg96BvXkOfYYKW0oDjsMbzAMlEIiODkioZPLvZjYxScJFUlIt9nqnME9TTcD5YVCaonC74TMIXBvlMg8gLeXuEYmUhMOyhIiP
IronPort-HdrOrdr: A9a23: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
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0ByCQANFKVg/49dJa1aHQEBAQEJARIBBQUBQIFXgVNRB4FRNjELhD+DSAOFOYh1A5lrgUKBEQNUCwEBAQ0BAT8CBAEBhE8CF4FdAiU4EwIEAQEBEgEBBQEBAQIBBgRxE4VQAQyGRAEBAQMBIxEMAQE3AQ8CAQgUBAICJgICAjAVEAIEDgWCcYJWAw4hAZ0cAoofeoEygQGCBwEBBgQEhSEYghMJgRAqgnuEDoJig3gnHIINgTwMEIJfPoIfggoCgy82ggsigVmBTAkEQzI+H00SJBCVFKYFgQwKgxaYBoVGBSODWosWkC2GJZU3ghehdAIEAgQFAg4BAQaBayOBWXAVZQGCPlAXAg6OH4Nwil1zOAIGAQkBAQMJfIcNAYEQAQE
X-IronPort-AV: E=Sophos;i="5.82,312,1613433600"; d="scan'208";a="879370020"
Received: from rcdn-core-7.cisco.com ([173.37.93.143]) by rcdn-iport-7.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 19 May 2021 13:37:54 +0000
Received: from mail.cisco.com (xbe-rcd-002.cisco.com [173.37.102.17]) by rcdn-core-7.cisco.com (8.15.2/8.15.2) with ESMTPS id 14JDbsIe001567 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=OK); Wed, 19 May 2021 13:37:54 GMT
Received: from xfe-rcd-001.cisco.com (173.37.227.249) by xbe-rcd-002.cisco.com (173.37.102.17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Wed, 19 May 2021 08:37:54 -0500
Received: from xfe-aln-001.cisco.com (173.37.135.121) by xfe-rcd-001.cisco.com (173.37.227.249) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Wed, 19 May 2021 08:37:53 -0500
Received: from NAM02-DM3-obe.outbound.protection.outlook.com (173.37.151.57) by xfe-aln-001.cisco.com (173.37.135.121) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3 via Frontend Transport; Wed, 19 May 2021 08:37:53 -0500
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HPBZC0QvMNcNwTNwAwJdwK/EoIEvHo8H/w5tEFdjREqtJU7neYig/Y4maExmyQx40NycTl+ufsn4cx2Tp+Kqw1uTEsAZ9di0Mb4UEV5073sI5yUX5mfugqDq+mFldSnhvC0vCGB9xiiTjH2myBAEWvXyu8E/TAwHs2r2cNycszlqaqPmlxgLn7Xqwhg4Y+Z7ZCLPK4nnxqwaKYiTqXxSZKuBYUx9ifCSPWLl7ez3BqodHLbaZR6+7/S0JZROiSRP3BbrnvZ8p0ThbYQFriO+cPqRjEe8IKx8Hogo8KTq4oy35+dnoDzDPGRdqQB5cCOk5WKpSgDm5Ot8Nt9TB8l1nQ==
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-SenderADCheck; bh=d9OVfztfqmoixltUvchBCn2l2h0b8xAwmzL6F3+cCqE=; b=HBMutUmMwgChUYFtxm5fJrKPkMMzaTSGEquhqU+dBo8fOuVDKU/tnZkNJFrTSE8jJ9SXc6fEXle+F3RTTOBf0Oai6eCLJ3sQSO9nvr4EQ7LHjrwid6W/U+jBWrz+YF0ciyYFkMXydKYB0PWGVpkow/Hap42SfY4oYR/6jNq6uBMzrs+s2BkxgH0cBovCDBbdZ5isbFzH4Eha1Fv7bXxLmVTUDFwfc6Mfxeu21DUdqM4oXDvEQZQhb1fyX9rjNmoW37k1Frybxnn9sp6HysyECQMnbKaOfz9zxvxjUuYvQ69q7C0XVCyESHIL7Ll8ZPWqrkxrNzJckOs+ywtBW+8dTQ==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cisco.com; dmarc=pass action=none header.from=cisco.com; dkim=pass header.d=cisco.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.onmicrosoft.com; s=selector2-cisco-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=d9OVfztfqmoixltUvchBCn2l2h0b8xAwmzL6F3+cCqE=; b=MGBmZPFgw1EZxeAaEQmF8z3VliV9I8SUMgcTRsSDni7dVlHX5NgtjHrFouiWpADjofuJoflGoyiDRcONiK92EuJ7RU7rg+8VihBHmylz2dAwTtdSyMzDuYnnSC6B9T6rpqQCCRIhzyiIhLw54Md1tHuLK8jwIiNG3jPWFaS8gI8=
Received: from BYAPR11MB2887.namprd11.prod.outlook.com (2603:10b6:a03:89::27) by BYAPR11MB3846.namprd11.prod.outlook.com (2603:10b6:a03:f5::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4129.28; Wed, 19 May 2021 13:37:52 +0000
Received: from BYAPR11MB2887.namprd11.prod.outlook.com ([fe80::6989:446f:c2bd:9470]) by BYAPR11MB2887.namprd11.prod.outlook.com ([fe80::6989:446f:c2bd:9470%3]) with mapi id 15.20.4129.034; Wed, 19 May 2021 13:37:52 +0000
From: "Acee Lindem (acee)" <acee@cisco.com>
To: "ianfarrer@gmx.com" <ianfarrer@gmx.com>
CC: "yang-doctors@ietf.org" <yang-doctors@ietf.org>, dhcwg <dhcwg@ietf.org>, "draft-ietf-dhc-dhcpv6-yang.all@ietf.org" <draft-ietf-dhc-dhcpv6-yang.all@ietf.org>
Thread-Topic: [dhcwg] Yangdoctors early review of draft-ietf-dhc-dhcpv6-yang-19
Thread-Index: AQHXTK3Man9kkiHi3UWOig/KROdNWKrqi+gA
Date: Wed, 19 May 2021 13:37:52 +0000
Message-ID: <064E8545-0951-40DD-B44E-0A0A39E62600@cisco.com>
References: <162025036687.13890.17585626720117932864@ietfa.amsl.com> <433418F7-0149-4AF8-AB6A-5D56D075E491@gmx.com>
In-Reply-To: <433418F7-0149-4AF8-AB6A-5D56D075E491@gmx.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/16.49.21050901
authentication-results: gmx.com; dkim=none (message not signed) header.d=none;gmx.com; dmarc=none action=none header.from=cisco.com;
x-originating-ip: [136.56.133.70]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 51b8f1c8-f913-45b6-a1c6-08d91acb4d3a
x-ms-traffictypediagnostic: BYAPR11MB3846:
x-microsoft-antispam-prvs: <BYAPR11MB384610C2CEACDCC9E9D6EF0CC22B9@BYAPR11MB3846.namprd11.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:8273;
x-ms-exchange-senderadcheck: 1
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:BYAPR11MB2887.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(39860400002)(346002)(136003)(396003)(376002)(366004)(26005)(54906003)(8936002)(186003)(5660300002)(66476007)(66556008)(76116006)(478600001)(66946007)(66446008)(6916009)(6512007)(4326008)(2906002)(316002)(2616005)(64756008)(8676002)(33656002)(36756003)(6486002)(71200400001)(6506007)(122000001)(86362001)(83380400001)(38100700002)(518174003)(45980500001); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: 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
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="utf-8"
Content-ID: <8D4C12F4BE142049B6CADA37F164BACF@namprd11.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BYAPR11MB2887.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 51b8f1c8-f913-45b6-a1c6-08d91acb4d3a
X-MS-Exchange-CrossTenant-originalarrivaltime: 19 May 2021 13:37:52.5017 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 5ae1af62-9505-4097-a69a-c1553ef7840e
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: CXA8QRoUEGPDDs2K5HSJFxK1tdG5vgSeBh+EpsOhDv0B1i3X2D4DREJf48x8XVAy
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR11MB3846
X-OriginatorOrg: cisco.com
X-Outbound-SMTP-Client: 173.37.102.17, xbe-rcd-002.cisco.com
X-Outbound-Node: rcdn-core-7.cisco.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/dhcwg/QqODeqaoS0OaoMCiQs6nCPvq9w4>
Subject: Re: [dhcwg] Yangdoctors early review of draft-ietf-dhc-dhcpv6-yang-19
X-BeenThere: dhcwg@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <dhcwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dhcwg/>
List-Post: <mailto:dhcwg@ietf.org>
List-Help: <mailto:dhcwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 19 May 2021 13:38:02 -0000

Hi Ian, 

See inline. 

On 5/19/21, 8:52 AM, "ianfarrer@gmx.com" <ianfarrer@gmx.com> wrote:

    Hi Acee,

    Many thanks for your review. Working through the review and preparing the update is taking a bit longer than I hoped.

    Most of your comments are straightforward and will be in the next update. I do have one comment - please see below.

    Ian

    > On 5. May 2021, at 23:32, Acee Lindem via Datatracker <noreply@ietf.org> wrote:
    > 
    > Reviewer: Acee Lindem
    > Review result: On the Right Track
    > 
    > Document: draft-ietf-dhc-dhcpv6-yang-19
    > Reviewer: Acee Lindem
    > Review Date: May 5, 2021
    > Review Type: Early Review
    > Intended Status: Standards Track
    > Summary: On the right track - Issues and questions need to be resolved.
    > 
    > Modules: ietf-dhcpv6-server@2021-03-17.yang
    >         ietf-dhcpv6-relay@2021-03-17.yang
    >         ietf-dhcpv6-client@2021-03-17.yang
    >         ietf-dhcpv6-common@2021-03-17.yang
    > 
    > Tech Summary: The document contains the base configuration and operational
    >              YANG model for the DHCPv6 protocol. The basic structure is
    >              very good but the major issues need to be addressed prior to WG
    >              last call.
    > 
    > Major Comments:
    > 
    >    1. Should the DHCP server, relay, and client functions be enabled by
    >       default? It seems they are require specific configuration to be
    >       viable.


    [if - I’ve removed ‘default enabled’ from server and relay

    However, for the client, I think that being enabled by default does make sense.

    E.g. if you want to use zero touch provisioning (RFC8572), then DHCPv6 is one
    Of the mechanisms that the client can use to start the bootstrapping process
    So you can establish NETCONF connectivity. If you are looking to manage 
    DHCPv6 clients via YANG, then you you must have DHCP infrastructure
    deployed. If the client is disabled by default, then you need another mechanism
    For bootstrapping zero touch so you can then configure the client to use DHCP
    Via NETCONF. The device may not even be able to get an address so you can
    reach it for configuration!]

Ok - I guess this makes sense. And come to think of it, there are Cisco devices that
do attempt ZTP via DHCP(v6) when no configuration is present. I just always have explicitly
configured my VNFs when testing. 

Thanks,
Acee

v2.23.0 | Report a Bug | By Email