IETF Logo Mail Archive

Re: [Lsr] Second Working Last Call for draft-ietf-lsr-flex-algo

Shraddha Hegde <shraddha@juniper.net> Mon, 05 July 2021 04:45 UTC

Return-Path: <shraddha@juniper.net>
X-Original-To: lsr@ietfa.amsl.com
Delivered-To: lsr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2A0D93A12BA; Sun, 4 Jul 2021 21:45:01 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.896
X-Spam-Level:
X-Spam-Status: No, score=-2.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.198, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, HTTPS_HTTP_MISMATCH=0.1, RCVD_IN_DNSWL_LOW=-0.7, 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=juniper.net header.b=cszg6Nm8; dkim=pass (1024-bit key) header.d=juniper.net header.b=BcrnEQOl
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 fQsWzm_PNyrw; Sun, 4 Jul 2021 21:44:56 -0700 (PDT)
Received: from mx0b-00273201.pphosted.com (mx0b-00273201.pphosted.com [67.231.152.164]) (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 7CC513A12B6; Sun, 4 Jul 2021 21:44:55 -0700 (PDT)
Received: from pps.filterd (m0108161.ppops.net [127.0.0.1]) by mx0b-00273201.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 1654UUlb032053; Sun, 4 Jul 2021 21:44:53 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : mime-version; s=PPS1017; bh=cxEK0db5PJf/8FkOHF3G4rP1H2c2jFMtYj9dLrdRXYI=; b=cszg6Nm8wdjvozwz6gLFc/7/Cjl60q51aRYudDi0Cw3I0hDopj8Rh2uwOVpEW86uc5+e THQyjcPI/x81ctIoA3UXFgMe8VfPhOmkWbllvrKLn6rzyqhVxEYR0b12UThhYR2ylCxp CM3aeBwETnODxR6UvVPiu6nX1T7ZS9X3Hjsrj9JcJdd5xmGfuSMCuDsX0gWLdKTegeXN wc1swkAHxBeiPXHdlCLYcIdpy29Yuytx7xpoJVd52qRWv8cXLsRZLcVf1wkNLFlFmLDI zA60GEiZ8gQ42zYrzz2ScZHQtSGVOA30fwKatVAfAEEtdr+l03iB8Aj1v9vEj8wAa93k sg==
Received: from nam12-bn8-obe.outbound.protection.outlook.com (mail-bn8nam12lp2177.outbound.protection.outlook.com [104.47.55.177]) by mx0b-00273201.pphosted.com with ESMTP id 39kcndrvjb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 04 Jul 2021 21:44:52 -0700
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HlQtXTicYX0gV8qdKFoaJljaYMJHNw9AKm23wGiz3gm50jEy3ujoulKYLSu9/Xx1YfRT/UkCfkCPvWI1bymc0bYnkbLxhJ00EmS5I12DLiilxErtZt6h69vpC7uygLk8a3CGQXvFpFBP0Yufi4qrv1ooqp4cOBtxjxdK1vTm5jqDrUAPqlwKcz84L8LDE0oRQI9GF3BzrFruqqQv0hmWWGz0WQhzaS97knuaZU3pgCvEFcLivrCsGyDRZTuShbhBqY5s5kERv5GTNq3UwrYncPIHxAcNn/k4DndD7mEr2NqszzOR3ipViVKqBoF4O3uy9wY3rO+FL2RfwiwvC3Gl3A==
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=cxEK0db5PJf/8FkOHF3G4rP1H2c2jFMtYj9dLrdRXYI=; b=HeBf7+xxNPDfHZQDfFoOu30NFIyirQfOE5BCF1RKN9A4UHvRP3AHkj126lHR9LRC+O6Zz4ScWWHTWX6JtWM6dxPYk6iGC0spkrQnGpdBKT01mqZRSEk+nfCHXJI4YvTyKEiinobdbaZ+b+phUxC4ohKzB6qrvc16B8z3SzHM2WKfAEn3BdBcRM94FImeRMzw2ZTAXqO4JyKCgFlBvmGIQsnLdT8/irndKYPkBi1HRmxq4BNcFiaE7fl2CynK78Htm1eTgvjrbPg5JHwaE4I3eUspfopsN2/C/RtJiAfQnwmf2shaqN8UNLrZerziojvhs6w7eswvijfTy/jG+nPBqQ==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=juniper.net; dmarc=pass action=none header.from=juniper.net; dkim=pass header.d=juniper.net; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=cxEK0db5PJf/8FkOHF3G4rP1H2c2jFMtYj9dLrdRXYI=; b=BcrnEQOlLPD1vPgBrYnwI4h79B/BkrtzYLXSUnlREAFqg/G4omqyS4g8KNTdybNqOIq6PRYbEIM68PnXT0C8FgR7ohGQKBemJ3Ru9hHj7wupbuNtrlfYQJdm6udG4f49Ktlrb9KtsRMYz+PT+MuHSquwXsdUsH0k/EikPjDS1LY=
Received: from CY4PR05MB3576.namprd05.prod.outlook.com (2603:10b6:910:52::22) by CY4PR05MB3208.namprd05.prod.outlook.com (2603:10b6:903:fd::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4308.8; Mon, 5 Jul 2021 04:44:50 +0000
Received: from CY4PR05MB3576.namprd05.prod.outlook.com ([fe80::d988:bf8c:faa1:1f0a]) by CY4PR05MB3576.namprd05.prod.outlook.com ([fe80::d988:bf8c:faa1:1f0a%2]) with mapi id 15.20.4242.015; Mon, 5 Jul 2021 04:44:50 +0000
From: Shraddha Hegde <shraddha@juniper.net>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Acee Lindem (acee)" <acee=40cisco.com@dmarc.ietf.org>, "lsr@ietf.org" <lsr@ietf.org>
CC: "lsr-ads@ietf.org" <lsr-ads@ietf.org>, Christian Hopps <chopps@chopps.org>, "draft-ietf-lsr-flex-algo.all@ietf.org" <draft-ietf-lsr-flex-algo.all@ietf.org>
Thread-Topic: Second Working Last Call for draft-ietf-lsr-flex-algo
Thread-Index: AQHXYrgIbZYnWh4MekGdB7wSeTKADKsirNtggBE9FhA=
Date: Mon, 05 Jul 2021 04:44:50 +0000
Message-ID: <CY4PR05MB35766B50277409820559BE55D51C9@CY4PR05MB3576.namprd05.prod.outlook.com>
References: <AFB5A092-6904-4E9A-8560-28258E092CB2@cisco.com> <MN2PR11MB43522F05BEC726665219A9AFC1079@MN2PR11MB4352.namprd11.prod.outlook.com>
In-Reply-To: <MN2PR11MB43522F05BEC726665219A9AFC1079@MN2PR11MB4352.namprd11.prod.outlook.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
dlp-product: dlpe-windows
dlp-version: 11.6.100.41
dlp-reaction: no-action
msip_labels: MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Enabled=true; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SetDate=2021-07-05T04:44:47Z; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Method=Standard; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Name=0633b888-ae0d-4341-a75f-06e04137d755; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SiteId=bea78b3c-4cdb-4130-854a-1d193232e5f4; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ActionId=7ee3eb07-8d22-4c7f-a63e-b27dd65aa3fa; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ContentBits=2
authentication-results: cisco.com; dkim=none (message not signed) header.d=none;cisco.com; dmarc=none action=none header.from=juniper.net;
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 17c885f2-d2a2-4184-fea2-08d93f6f9fb0
x-ms-traffictypediagnostic: CY4PR05MB3208:
x-microsoft-antispam-prvs: <CY4PR05MB32084BEE5ECC52B2C3D31E96D51C9@CY4PR05MB3208.namprd05.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:8882;
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:CY4PR05MB3576.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(366004)(136003)(39860400002)(376002)(396003)(346002)(186003)(86362001)(122000001)(26005)(64756008)(55236004)(76116006)(66476007)(66446008)(5660300002)(53546011)(2906002)(6506007)(7696005)(33656002)(52536014)(38100700002)(316002)(66556008)(110136005)(71200400001)(478600001)(4326008)(8936002)(9686003)(8676002)(55016002)(966005)(54906003)(83380400001)(166002)(66946007); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: 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
x-ms-exchange-transport-forked: True
Content-Type: multipart/alternative; boundary="_000_CY4PR05MB35766B50277409820559BE55D51C9CY4PR05MB3576namp_"
MIME-Version: 1.0
X-OriginatorOrg: juniper.net
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: CY4PR05MB3576.namprd05.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 17c885f2-d2a2-4184-fea2-08d93f6f9fb0
X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Jul 2021 04:44:50.1822 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: EsGfqBE2/94h7NchGygBkhXBV3kIZnU91ldsr+VlBsfdhaAizC/KvRLMOawG2izNztt9rGRv6dFpAFWW7S1fmg==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR05MB3208
X-Proofpoint-ORIG-GUID: A_H0qIIwggB-Vi518vDkRKwZq7UPvTzG
X-Proofpoint-GUID: A_H0qIIwggB-Vi518vDkRKwZq7UPvTzG
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-07-05_03:2021-07-02, 2021-07-05 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 clxscore=1011 impostorscore=0 priorityscore=1501 spamscore=0 mlxscore=0 adultscore=0 phishscore=0 mlxlogscore=999 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107050023
Archived-At: <https://mailarchive.ietf.org/arch/msg/lsr/LO48NMCQf9I6tFdWqOP0fK2l6UI>
Subject: Re: [Lsr] Second Working Last Call for draft-ietf-lsr-flex-algo
X-BeenThere: lsr@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Link State Routing Working Group <lsr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/lsr>, <mailto:lsr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/lsr/>
List-Post: <mailto:lsr@ietf.org>
List-Help: <mailto:lsr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/lsr>, <mailto:lsr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 05 Jul 2021 04:45:01 -0000

I support progressing this draft.

I have a minor comment on the Flags sub-TLV.

In section "ISIS Flexible Algorithm Definition Flags Sub-TLV"
And  "OSPF Flexible Algorithm Definition Flags Sub-TLV"

We should add an explicit statement that

" If any undefined flag is set and that flag is not
Understood by the node it MUST stop participating in the flex-algorithm"

While this information can be derived from previous sections, adding an explicit
Statement in the flags section will help implementors to honor that statement.
If implementations miss this, it would be difficult to deploy features that need new flags
In future.

Rgds
Shraddha




Juniper Business Use Only
From: Les Ginsberg (ginsberg) <ginsberg@cisco.com>
Sent: Thursday, June 24, 2021 10:56 AM
To: Acee Lindem (acee) <acee=40cisco.com@dmarc.ietf.org>; lsr@ietf.org
Cc: lsr-ads@ietf.org; Christian Hopps <chopps@chopps.org>; draft-ietf-lsr-flex-algo.all@ietf.org
Subject: RE: Second Working Last Call for draft-ietf-lsr-flex-algo

[External Email. Be cautious of content]

I support progressing this document.
Flex-algo has already been demonstrated to be useful with a number of implementations/deployments.

   Les


From: Lsr <lsr-bounces@ietf.org<mailto:lsr-bounces@ietf.org>> On Behalf Of Acee Lindem (acee)
Sent: Wednesday, June 16, 2021 7:01 AM
To: lsr@ietf.org<mailto:lsr@ietf.org>
Cc: lsr-ads@ietf.org<mailto:lsr-ads@ietf.org>; Christian Hopps <chopps@chopps.org<mailto:chopps@chopps.org>>; draft-ietf-lsr-flex-algo.all@ietf.org<mailto:draft-ietf-lsr-flex-algo.all@ietf.org>
Subject: [Lsr] Second Working Last Call for draft-ietf-lsr-flex-algo

After the first successful WG last call, the authors discovered that some re-work was needed for OSPF AS External route calculation - specifically with respect to the Flex Algorithm ASBR metrics and calculation. This was fixed and there were clarifications in the IANA section (see versions -14 and -15). The draft has been stable since April and we are now ready to WG last call the updated version.


Without further ado, this begins a 2 week WG Last Call, ending on July 1st, 2021, for draft-ietf-lsr-flex-algo

  https://datatracker.ietf.org/doc/draft-ietf-lsr-flex-algo/<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-ietf-lsr-flex-algo/__;!!NEt6yMaO-gk!S24A0VDoKfWQMUhBAT1294ruoAud7W0REDqMrKLfBu7v843mcXzJ6Eu7x3QAu8ny$>

All authors, please indicate by sending an email to the list, whether you aware of any other IPR beyond what is already posted:

  [From https://datatracker.ietf.org/ipr/search/?submit=draft&id=draft-ietf-lsr-flex-algo<https://urldefense.com/v3/__https:/datatracker.ietf.org/ipr/search/?submit=draft&id=draft-ietf-lsr-flex-algo__;!!NEt6yMaO-gk!S24A0VDoKfWQMUhBAT1294ruoAud7W0REDqMrKLfBu7v843mcXzJ6Eu7x8TVfDmS$>]

  https://datatracker.ietf.org/ipr/3910/<https://urldefense.com/v3/__https:/datatracker.ietf.org/ipr/3910/__;!!NEt6yMaO-gk!S24A0VDoKfWQMUhBAT1294ruoAud7W0REDqMrKLfBu7v843mcXzJ6Eu7xwIee-xG$>
  https://datatracker.ietf.org/ipr/3248/<https://urldefense.com/v3/__https:/datatracker.ietf.org/ipr/3248/__;!!NEt6yMaO-gk!S24A0VDoKfWQMUhBAT1294ruoAud7W0REDqMrKLfBu7v843mcXzJ6Eu7xyrFkBLf$>

Thanks,
Chris & Acee.

v2.23.0 | Report a Bug | By Email