IETF Logo Mail Archive

Re: [spring] Suggest some text //RE: Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming

"Zafar Ali (zali)" <zali@cisco.com> Sun, 01 March 2020 13:57 UTC

Return-Path: <zali@cisco.com>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9C5E03A0F72; Sun, 1 Mar 2020 05:57:54 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.599
X-Spam-Level:
X-Spam-Status: No, score=-9.599 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, SPF_PASS=-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=bmjjcL9P; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=GLeMTEyD
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 exzTMqaHoEpq; Sun, 1 Mar 2020 05:57:52 -0800 (PST)
Received: from rcdn-iport-1.cisco.com (rcdn-iport-1.cisco.com [173.37.86.72]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 06C9C3A0F71; Sun, 1 Mar 2020 05:57:51 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=12069; q=dns/txt; s=iport; t=1583071071; x=1584280671; h=from:to:cc:subject:date:message-id:references: in-reply-to:mime-version; bh=thB17RZFvzNbdToAJa4AjgFyGZb3Wl2Ya3sSHSf4ciU=; b=bmjjcL9PZU7iB2XUvCOLd1BhoducWDFHyGVqnXd8LBsZ+8Mg/+Op67qB Sa2EWL9Zt+PByRCnoRn7a3CqeTvzcorenRLD1O6YZBxA8HZZxH7eR7X/f xn2Ku2i9+I4LTEJS9Orqaq3kn1sPkBhYbDlxiHStX8Fuf7pUKFr9+6+E6 I=;
IronPort-PHdr: 9a23:c3WEJxbBZawmdGoxeBMNSEX/LSx94ef9IxIV55w7irlHbqWk+dH4MVfC4el20QKbRp3VvvRDjeee87vtX2AN+96giDgDa9QNHwQAld1QmgUhBMCfDkiuPvfubgQxHd9JUxlu+HToeUU=
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0BGCAAWvlte/5RdJa1lHAEBAQEBBwEBEQEEBAEBgXuBJS9QBWxYIAQLKgqECoNGA4pngl+JY4lQhGKCUgNUCQEBAQwBARgBCgoCBAEBhEACF4FzJDgTAgMBAQsBAQUBAQECAQUEbYVWDIVjAQEBAQMBARARHQEBLAsBDwIBBgIRAwECJAQDAgICHwYLFAkIAgQBDQUigwQBgX1NAy4BAgyRIpBnAoE5iGJ1gTKCfwEBBYUUDQuCDAMGgTiMJRqBQT+BEScggh8uPmsZAYEWSQEBgT1IDQmCWzKCLI1wgjo7hXCKC457RAqCPJIwhDYcmzFEhAOGCoQhiyqQIAIEAgQFAg4BAQWBaSKBWHAVOyoBgkFQGA2OHQwMCxWDO4UUhUF0gSmNa4EyAYEQAQE
X-IronPort-AV: E=Sophos;i="5.70,504,1574121600"; d="scan'208,217";a="726439368"
Received: from rcdn-core-12.cisco.com ([173.37.93.148]) by rcdn-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 01 Mar 2020 13:57:50 +0000
Received: from XCH-ALN-003.cisco.com (xch-aln-003.cisco.com [173.36.7.13]) by rcdn-core-12.cisco.com (8.15.2/8.15.2) with ESMTPS id 021Dvop9019113 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=FAIL); Sun, 1 Mar 2020 13:57:50 GMT
Received: from xhs-aln-002.cisco.com (173.37.135.119) by XCH-ALN-003.cisco.com (173.36.7.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Sun, 1 Mar 2020 07:57:50 -0600
Received: from xhs-aln-001.cisco.com (173.37.135.118) by xhs-aln-002.cisco.com (173.37.135.119) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Sun, 1 Mar 2020 07:57:49 -0600
Received: from NAM10-BN7-obe.outbound.protection.outlook.com (173.37.151.57) by xhs-aln-001.cisco.com (173.37.135.118) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Sun, 1 Mar 2020 07:57:49 -0600
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Ww5wljR9u40KwiX+nl0MvRm8I1qB+glsmmqZ4/CiQulqOydaGnRT80ccqseNMELwYNrVs4zLe0TJ2izsXJQWM1ItdcbnBvbdWS/HKZh4whP7MlRsGFSZI7ZLS9oE1fWCU/XnS0Uk5GuFC9VSDDW+PxFZR9e1ttd+X55IpixBrTNOd9S/mMcIdRTTN7oIAGYZxQvM9ixAAm8oss8uCZ6cWqsKnBsebeC5q1tFDqPaoxVtz//GNiD8C+6ru7yOCNJqJ3p3davo2/A5df1KccDLP3yVrOQ1iTYJBGVWrznIoTFJM6lkly+4EwQtkITGZkLK360UK2QPkBTDjWXs5huLMA==
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=thB17RZFvzNbdToAJa4AjgFyGZb3Wl2Ya3sSHSf4ciU=; b=guKTrp0kKJ6ChqJ4FpcAX7M8wNv1FCw3KKKMgk2sbkQyo7wcBNxQPTh/haWXPZzHxvdkYWyuwc1ImkpPMRuF2sYAL0WZbRgF+L1fTPmr5H8geHxJ5MDFiVs75rGfgrcVyCXtAXxyGARJa4emcN7dguO/6bHwZrYpsBaoYZBBxybTDyTFz2vgqWKH5cDbqfM8Wqxsw5XMBz4Js34qgtUxhbq/U++y4P/z3jqym7szzFbrqRdOmdcOzGDm/EcS77aZu7MqsALtjaSKQF7sIwyqbvTZeL2vLEYzsXv7eB6tLqWQV5AdT6DErvcKR/QbmHKTEP78dPq/47d2VseiQJk6Fw==
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=thB17RZFvzNbdToAJa4AjgFyGZb3Wl2Ya3sSHSf4ciU=; b=GLeMTEyDZgdgxwQ3g1xYmp4e7lAO7pIh3x58WNXsysIdvjar1wN3BoyjFe3fJ/u17x6m9wQHN8CjKZDad6KrVfaZafegF5NKPdl6wS9uMBKsNRb2bqnr4LPg6QJCaZJ49zfcxsJ/dQNiKnvaMB2et4ab8SunaMbvsDfhd1r8KPo=
Received: from MN2PR11MB3710.namprd11.prod.outlook.com (2603:10b6:208:f2::19) by MN2PR11MB3549.namprd11.prod.outlook.com (2603:10b6:208:e9::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2772.15; Sun, 1 Mar 2020 13:57:48 +0000
Received: from MN2PR11MB3710.namprd11.prod.outlook.com ([fe80::8c1b:b94:5d2e:446b]) by MN2PR11MB3710.namprd11.prod.outlook.com ([fe80::8c1b:b94:5d2e:446b%3]) with mapi id 15.20.2772.018; Sun, 1 Mar 2020 13:57:48 +0000
From: "Zafar Ali (zali)" <zali@cisco.com>
To: Greg Mirsky <gregimirsky@gmail.com>, Robert Raszuk <robert@raszuk.net>
CC: "6man@ietf.org" <6man@ietf.org>, spring <spring@ietf.org>, "Joel M. Halpern" <jmh@joelhalpern.com>, 神明達哉 <jinmei@wide.ad.jp>, "Zafar Ali (zali)" <zali@cisco.com>
Subject: Re: [spring] Suggest some text //RE: Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming
Thread-Topic: [spring] Suggest some text //RE: Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming
Thread-Index: AQHV7p+YGWftayDf3UiI708hFmb2jqgyA0eAgABv3ACAAArrgIAAELQAgAAI6gCAAArdgIAAifEAgACLAoCAAAbsAP//s02A
Date: Sun, 01 Mar 2020 13:57:47 +0000
Message-ID: <368E280D-A414-4A91-8EB4-16C8518B1B77@cisco.com>
References: <965ff6bbf1cb4c2f8d48b7b535a0cf5b@huawei.com> <CAJE_bqcTNWt==mtYKeNVXOBAzBNLG=+_mXQQ9xMHYOCDRqCb_Q@mail.gmail.com> <CAOj+MMEzbyzy98iFyfe6Z=dQiWHo=triX6bHKx9fNEUCaSuy3Q@mail.gmail.com> <085238CD-14F6-43AE-8D58-49A20DDCBB24@juniper.net> <CAOj+MMGzjP4C4CXi+6i+o_TMO5Un8HdGF+MMGLVa-KPUH+pXZw@mail.gmail.com> <3c07fa08-cd93-d0ae-fc76-ac8c8ae5baa7@gmail.com> <CA+RyBmX0EQydgvgUoPJB+6z6hcAiesVr43MnK_HNua0v8BieVA@mail.gmail.com> <CAOj+MMHBdU=urwhJV6QTn8RZZKZ0kyefHF9TDRbv5cH5CAQ5qg@mail.gmail.com> <c2a0cef9-51b1-ca76-99ad-718a37b06d4f@joelhalpern.com> <CAOj+MMHZ7sVE+pHOEhDPZvP0u-01cD0oTHEo5x=J=PEVj0iTYA@mail.gmail.com> <CA+RyBmXqJeduXo8zd8YVsW9+nLFYFfZ+As=t_404vHDKfoH58A@mail.gmail.com>
In-Reply-To: <CA+RyBmXqJeduXo8zd8YVsW9+nLFYFfZ+As=t_404vHDKfoH58A@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/10.22.0.200209
authentication-results: spf=none (sender IP is ) smtp.mailfrom=zali@cisco.com;
x-originating-ip: [47.185.202.138]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 52c6d3b0-29ea-47c3-b12b-08d7bde88675
x-ms-traffictypediagnostic: MN2PR11MB3549:
x-ms-exchange-transport-forked: True
x-microsoft-antispam-prvs: <MN2PR11MB3549FD9238E324BEB11E20F2DEE60@MN2PR11MB3549.namprd11.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:8882;
x-forefront-prvs: 0329B15C8A
x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(4636009)(346002)(396003)(39860400002)(136003)(376002)(366004)(199004)(189003)(66556008)(2906002)(66476007)(66946007)(64756008)(478600001)(81156014)(8676002)(81166006)(91956017)(6512007)(76116006)(53546011)(110136005)(54906003)(2616005)(966005)(66446008)(4326008)(107886003)(316002)(6506007)(33656002)(36756003)(5660300002)(26005)(6486002)(71200400001)(186003)(86362001)(8936002); DIR:OUT; SFP:1101; SCL:1; SRVR:MN2PR11MB3549; H:MN2PR11MB3710.namprd11.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1;
received-spf: None (protection.outlook.com: cisco.com does not designate permitted sender hosts)
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: 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
x-ms-exchange-antispam-messagedata: AzES5mqcEYMbFNskbXvlefHWgFjmpDLgGBN9wMm/aOZG+g3SICbP1oLGtrrlrfpGdn64lymh6kOrzUgJrcK6jzPDXze8OJoJJVakufsRFh25Nh9//Mq23rNzolAo8yEvBFIRJ9Mi4qIveBsPh9a2Ng==
Content-Type: multipart/alternative; boundary="_000_368E280DA4144A918EB416C8518B1B77ciscocom_"
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 52c6d3b0-29ea-47c3-b12b-08d7bde88675
X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Mar 2020 13:57:48.1077 (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: mWKKQ8tHRscvyzNjHSXwkGUhtRDSdWJxmK4x1Cd0O5348KJ6eVUPnflFkLwPvIan
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB3549
X-OriginatorOrg: cisco.com
X-Outbound-SMTP-Client: 173.36.7.13, xch-aln-003.cisco.com
X-Outbound-Node: rcdn-core-12.cisco.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/024tH0SLouNWDLAj81vCfzAdznw>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 01 Mar 2020 13:57:55 -0000

Greg, Joel,

All the existing IPv6 OAM tools (e.g., ICMP, traceroute, TWAMP, BFD, etc.) works “as-is” for the PSP SID.
They shall exercise the FIB entry for the PSP SIDs, follow the same path as PSP SIDs, etc.
We can add clarification in the OAM draft.

Thanks

Regards … Zafar

From: spring <spring-bounces@ietf.org> on behalf of Greg Mirsky <gregimirsky@gmail.com>
Date: Sunday, March 1, 2020 at 8:32 AM
To: Robert Raszuk <robert@raszuk.net>
Cc: "6man@ietf.org" <6man@ietf.org>, spring <spring@ietf.org>, "Joel M. Halpern" <jmh@joelhalpern.com>, 神明達哉 <jinmei@wide.ad.jp>
Subject: Re: [spring] Suggest some text //RE: Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming

Hi Robert,
yes, the path probably will be the same regardless whether PSP was applied or not. But performance metrics, e.g. packet delay, may be different for OAM and "regular" packets.

Regards,
Greg

On Sun, Mar 1, 2020, 14:08 Robert Raszuk <robert@raszuk.net<mailto:robert@raszuk.net>> wrote:
Nope.

Node can advertise two SIDs or PSP in a given network may be a well know function (to limit IGP burden) Example: odd SID includes PSP and even SID does not.

O*A*M  packets can use on the exact same path but the penultimate hop traversal is directed by even SID and is not subject to PSP..

Done.

Thx,
R.

On Sun, Mar 1, 2020 at 5:50 AM Joel M. Halpern <jmh@joelhalpern.com<mailto:jmh@joelhalpern.com>> wrote:
Presuming that by "OEM" you mean "OAM", then no, this does not work.
If the OAM is intended to monitor a path that has a last SID whose
flavor is PSP, then something will break.  The monitoring will monitor
something else, or it won't monitor the last hop, or...

Given the point that was made that ignoring a source route (SRH or
otherwise) with segments-left = 0 is a mandatory behavior of 8200, I am
really left puzzled as to what use case justifies the contortion of PSP.

Yours,
Joel
--------------------------------------------------------------------
IETF IPv6 working group mailing list
ipv6@ietf.org<mailto:ipv6@ietf.org>
Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
--------------------------------------------------------------------

v2.23.0 | Report a Bug | By Email