Re: [mpls] agenda for the design team meeting tonight

Alexander Vainshtein <Alexander.Vainshtein@rbbn.com> Thu, 08 April 2021 13:04 UTC

Return-Path: <Alexander.Vainshtein@rbbn.com>
X-Original-To: mpls@ietfa.amsl.com
Delivered-To: mpls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 969E93A16CD; Thu, 8 Apr 2021 06:04:45 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.09
X-Spam-Level:
X-Spam-Status: No, score=-2.09 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_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, T_KAM_HTML_FONT_INVALID=0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=rbbn.com header.b=P6QkOfsN; dkim=fail (1024-bit key) reason="fail (body has been altered)" header.d=sonusnetworks.onmicrosoft.com header.b=WWnLkDRb
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 EyssGuN9DJdg; Thu, 8 Apr 2021 06:04:40 -0700 (PDT)
Received: from mail1.bemta26.messagelabs.com (mail1.bemta26.messagelabs.com [85.158.142.4]) (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 DD8603A16C9; Thu, 8 Apr 2021 06:04:39 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rbbn.com; s=rbbnselector03122020; t=1617887077; i=@rbbn.com; bh=FZ0SVUyzN2E7J1COL1Ycd9umM3csR4WsDqNX2NZzh2c=; h=From:To:CC:Subject:Date:Message-ID:Content-Type:MIME-Version; b=P6QkOfsNlUfkIggcS4qiGI+W+3ON1VoWf/3uqRVA6y8uUBGbdrq6hJkI2nSiJAvsy QmFHKAFSVJ7XzFfi72ATQ51GkuNnkCRvZpuZjl3MrxMnXFguUEH8BT0W+UywhW3Yz7 AnPKoN156imzctBgB9dWUMtmHEJEfEKPvaVDwRa7j/pJi4e/v+i6PdVAqIkJ/ZkuTK OinGeRq6kRurpJwJqrZrD0sDKtDUfiUMyfhividmHwmytnf4D4Qhewnl1UkTMhH/SH WZmf7CFbwbT2s1f9vf+2cPnScixoKaiWJpFF3DGr4ClcFdCcGWpsFWn1SwRcXzICX1 VAAgNrS8vkB8A==
Received: from [100.113.0.194] (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256 bits)) by server-4.bemta.az-a.eu-central-1.aws.symcld.net id 63/25-42359-46FFE606; Thu, 08 Apr 2021 13:04:36 +0000
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrKJsWRWlGSWpSXmKPExsWSoW+Vqpv8Py/ B4M5VNYt/c+cwW6y7fIrN4tbSlawOzB5Llvxk8pg1vY0tgCmKNTMvKb8igTXj0gL/gumVFVO3 zmJsYPyW3cXIxcEosJRZoqVrMwuEc4xF4sTfx6wQzipGic75fxhBHBaB3cwSC/8fASrj5BASm M8ksXSTPEhCSOAeo8Tf22vZQRJsAlYSv9+fASsSEZCVuLbtJ1MXIwcHs0CwxKZPFiBhYQE7id M/5kGV2EtcvnuVEcLWk9gz4zQriM0ioCLRN/0KM4jNKxAr8WjbArAaRgExie+n1jCB2MwC4hK 3nswHsyUEBCSW7DnPDGGLSrx8/I8Vor6BUWLeM3GIuILEvWnLoeplJS7N72aEsH0ljjSdYIGw tSRa7zxnAzlZQiBHYllrNURYTeLGmw6o8XISq3ofQpXLSDy4sZ0NFAwSAhPYJCb/+QPl9LJI7 Py0kRXC6eOQmL3wDZjDIHCHVeJK83R2iBUqEv8OVU5g1JmF5CEIO09ixZulrLPAASAocXLmEx aIuI7Egt2f2CBsbYllC18zw9hnDjxmQhZfwMi+itEyqSgzPaMkNzEzR9fQwEDX0NBY11DXyMh ML7FKN1EvtVQ3OTWvpCgRKKuXWF6sV1yZm5yTopeXWrKJEZjGUgoZH+1gPP36g94hRkkOJiVR 3uk38xKE+JLyUyozEosz4otKc1KLDzHKcHAoSfBq/gXKCRalpqdWpGXmAFMqTFqCg0dJhDf2H 1Cat7ggMbc4Mx0idYrRm2PCy7mLmDne/VwMJD+uWgIkv4PJm+9B5Oa5SxcxC7Hk5eelSonzTg QZIQAyIqM0D24BLDdcYpSVEuZlZGBgEOIpSC3KzSxBlX/FKM7BqCTMmwEyhSczrwTujldAJzI BnVhyMBfkxJJEhJRUAxNXj+i0X9rVPzeGKJ5uvsAx6/iiJK5eW+ZbPYXLponbmTMydIh+aZjN ndm88WC3wKeN3DcDnnWL1G58weZtqsf3ea/oOt2yr99Yvnfd/dXwU/jK8ZtLA64z3jXmZs847 iUfNSdTXrjDpcrqO+P2dwbsy3OLFOdbcq46cTd8USX786vnNqyY0bbjY+3l6smKPNGLZSe77y 3YN7U19FKslk+InANv+vnU7pWpG0VNNJ+/n+E46/d2zwuSMepfTMWYPLXDe0+YfOG4JSKurXF tmtUq3SenuNOlPrD6T3u4/l37n8QTvi5xGnpTthvc/35kb8ERLZaIjJNB/pH/r03ISJiU3+uy 7GUEz9n+4L7Pv5RYijMSDbWYi4oTATjhrIeIBAAA
X-Env-Sender: Alexander.Vainshtein@rbbn.com
X-Msg-Ref: server-25.tower-232.messagelabs.com!1617887074!29407!1
X-Originating-IP: [104.47.58.101]
X-SYMC-ESS-Client-Auth: mailfrom-relay-check=pass
X-StarScan-Received:
X-StarScan-Version: 9.60.3; banners=rbbn.com,-,-
X-VirusChecked: Checked
Received: (qmail 10161 invoked from network); 8 Apr 2021 13:04:35 -0000
Received: from mail-dm6nam10lp2101.outbound.protection.outlook.com (HELO NAM10-DM6-obe.outbound.protection.outlook.com) (104.47.58.101) by server-25.tower-232.messagelabs.com with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 8 Apr 2021 13:04:35 -0000
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ED0++xfSrewhPYvaeDNkl/6gFEVY8jzh765ti9vebePKvBOv8S6zFOv2P9uJPUOlVzZ4/V0jkeTr3XFsTSBS7X0Zwviz6uSqmVNTqqlrjV1OO2NAxQNoGi1wOQQcw+rH9k33JliVXex3rwf+/OFFQKlXL90ChGEH+/xit1bHVkb0Rduy42fxD/6HafD1V/7TJuxh7rC7h2rXIFlUMivekMAI3eo1JY8NXDZ9odkUmz0q6SFjyVxm/rDnzj5NoQsMoUJUqT/UhKr16kQG8IJmdyozQFxAEVWUUE26Dd7aMUdGuwzg+6gwX9C4/LbPA1fY4Zitjjua1NoeUBI47fNaJA==
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=nl5j2PstPwp51oYgdJ/AoTAdR7J8Li9GTewhNpyUz0k=; b=A4A3HslTim/FlvtfZqiRPrst7AGIon3YabBklPtjteM0Ff58AaitQJg/qxOEkAm6vqtTgcywdWHqu2b5Azmyr+UFvfGp9TZrU0KE3knXZPqmisue9oMv2y8E5HYV+klXNi4F2abG+IbM9YCN2Qhr1oRJsChR46LtP6fEZCFLhLhcRw2l/LhAIbLGjrN9XRiFxt402K6dx/+VRi8EH5UAZhJ1ZjlMATXPIwSypAq09DF33N0ohZNi6FE8CdrbzRbnFrfzn9dqJETmVl51JbuQUCNWLRXzeKnLOoR5MgXQunTo+GYrq5Eou1+KXAsCZemBAK8RwoQpm7Q0jlpFsu3pJw==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=rbbn.com; dmarc=pass action=none header.from=rbbn.com; dkim=pass header.d=rbbn.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=SonusNetworks.onmicrosoft.com; s=selector2-SonusNetworks-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=nl5j2PstPwp51oYgdJ/AoTAdR7J8Li9GTewhNpyUz0k=; b=WWnLkDRbTpv3WbfeTRILZruLOBqyM/98hxndU9IJ4O0TXPw06a3piKKSwIS2RBiFoUf6voNxlDUWMwTrV/Lnq0utFB6CN5wMJmZ0vyvAdRTN1aXgfgP0TDa7xdkwtvsS/ccjFLjNRmEXIa4HJcyczCtc6e6m+ek2kHwI+mQeYh4=
Received: from SJ0PR03MB5935.namprd03.prod.outlook.com (2603:10b6:a03:2d6::9) by SJ0PR03MB6286.namprd03.prod.outlook.com (2603:10b6:a03:3ba::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4020.18; Thu, 8 Apr 2021 13:04:32 +0000
Received: from SJ0PR03MB5935.namprd03.prod.outlook.com ([fe80::458d:40a8:1e16:91f6]) by SJ0PR03MB5935.namprd03.prod.outlook.com ([fe80::458d:40a8:1e16:91f6%7]) with mapi id 15.20.4020.018; Thu, 8 Apr 2021 13:04:32 +0000
From: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
To: Loa Andersson <loa@pi.nu>
CC: "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
Thread-Topic: [mpls] agenda for the design team meeting tonight
Thread-Index: Adcsd7aLp7SLhiQUR7CI88laODqkFQ==
Date: Thu, 8 Apr 2021 13:04:32 +0000
Message-ID: <SJ0PR03MB5935AA191258AE821321A5C6F6749@SJ0PR03MB5935.namprd03.prod.outlook.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [79.183.60.29]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 8b0f35d2-629e-4e9e-0dcc-08d8fa8eda1b
x-ms-traffictypediagnostic: SJ0PR03MB6286:
x-microsoft-antispam-prvs: <SJ0PR03MB62862BDA481674E31754FE5FF6749@SJ0PR03MB6286.namprd03.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:9508;
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:SJ0PR03MB5935.namprd03.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(136003)(396003)(39860400002)(366004)(346002)(376002)(71200400001)(9686003)(33656002)(55016002)(316002)(54906003)(26005)(7696005)(966005)(186003)(38100700001)(4326008)(66446008)(66476007)(66946007)(64756008)(83380400001)(6916009)(76116006)(166002)(5660300002)(52536014)(86362001)(53546011)(6506007)(8936002)(478600001)(2906002)(8676002)(66556008); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: =?us-ascii?Q?Cinm5vJOciSyChmIIxrPIyCav3q32SpFs1e0i8MGtAVwHJMKAwlLx7kTAmCy?= =?us-ascii?Q?PJPSbKh5Y77r4Ctx17JlU0wTQw83cO5q7O/m5bi/20epbvpKrLplrxHJRujj?= =?us-ascii?Q?BEsL4HvQGngBBjlHkxWUxTVT4C7wJe1X0wY+8/maodzx2q3MATwaKjyRQGSB?= =?us-ascii?Q?wB/YmgaIS6ijL+WHZoqqfvZr6jyxcxYgaMUCVVbJ34YLflppAL97fHcreYqv?= =?us-ascii?Q?CY5CdgWtkFJ4a4H/wxTf0vzwQ7lT7773YK0O5J6XX+jKm40kIXIrh6x+uSGH?= =?us-ascii?Q?jZFmTEcWiW81oTAnHExUAHRr8jPwGkJFhYP4eax8aU41XZ/t9M1TNDz4teOO?= =?us-ascii?Q?x29LuOwJI45fH308eAacCo60d/DD2+0ssd1vTRMH1Y6p/Gtj4bFGyZjLE2Ro?= =?us-ascii?Q?4wE/SOFrqXY352+xkctwi1MuvsulHBwR2NfocUNfdthqDlyXOLh1+Rwl4Bmz?= =?us-ascii?Q?xAtt6DUNSwqaeuG0YaXqAbgZ3bRJR2iksur6bxqHH5FR25IrUYn9saoVctQ6?= =?us-ascii?Q?NjBKozLpOXdCBe2lfbONticVicHfhDVU5CFD8v05EQR7bEvhvyny/EYGbuC8?= =?us-ascii?Q?zTXMAamrizsbqXrfG1kSvhPYkK4O2CakY1j/jwLupN1nGjCjcVTWbNFNdEQA?= =?us-ascii?Q?3jj7AWeei33R3S/ts3lG8OZELGiz/PTVhTgBk2Dt9belAyz3DO7DJEqT7/xn?= =?us-ascii?Q?y4BuZBWrNrWVrv171NbTIY5E+LlpE3yBvg3V4kgaZ81PAiDQIxIZuVWoXwUp?= =?us-ascii?Q?V9oQj2lIn5OXQJcrcbQkNPIO5N28Nm9gYIAneG3QzAhubq9PtyNO+2SBxwQs?= =?us-ascii?Q?VNhca3tTW50cXizEr3L1W7YmFBrN0hultfiMdX6wp9j3HRGAb5u5aqUwEeNI?= =?us-ascii?Q?ul7k74zj/jdmrB1qmMkfx9q6Z4rwhlELVQM08mdGCGh27LEHkNCD1xrjc0/5?= =?us-ascii?Q?OaitsECQdvELsFPdO3WJznAs9sLV2/UGkwbT5CpqHI6BEP7ATPaH2Asnv7Ii?= =?us-ascii?Q?dHEWuY+jqNyPGsWQwuFIP50jvSynHbzuN+M+deCkQwzIrgywtFFsid9xWlSa?= =?us-ascii?Q?yYpd1fpODPiTodnP0tR57Z9AhjUicK20HkpjyDpZVQcmQBYmQD9UQZyTNfcZ?= =?us-ascii?Q?32Hb5vcOeJluaEtA8dRsHEj94sRweIqyKqOgQ8h79N4P+yY7RMTVWB44VhjW?= =?us-ascii?Q?VnJKe04vNjhcgCTHKbyveSj+czb4dcgkzgFhJjlDm4RgZ7eZ68i1mpFWwdDz?= =?us-ascii?Q?XrZ68y0Y8p2Dc2nAHlusaCboDmj9jePDAXHDXBjFzIJaiXmCVs0d4l8W95J7?= =?us-ascii?Q?hfrGIMFRUomVvp3odXuMTpVR?=
x-ms-exchange-transport-forked: True
Content-Type: multipart/alternative; boundary="_000_SJ0PR03MB5935AA191258AE821321A5C6F6749SJ0PR03MB5935namp_"
MIME-Version: 1.0
X-OriginatorOrg: rbbn.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: SJ0PR03MB5935.namprd03.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 8b0f35d2-629e-4e9e-0dcc-08d8fa8eda1b
X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Apr 2021 13:04:32.2937 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 29a671dc-ed7e-4a54-b1e5-8da1eb495dc3
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: yHkzZ0ggnDgdiOZtSunbcc2MOmx84tmPkToQPWgVZurMldBXnttKnBUaZPK7gKgqI3IzRJMMPOKHJXrfmXPMNA==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR03MB6286
Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/nhv-xEpzh1o3rfX8-H3OmdbtQMg>
Subject: Re: [mpls] agenda for the design team meeting tonight
X-BeenThere: mpls@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Multi-Protocol Label Switching WG <mpls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mpls>, <mailto:mpls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mpls/>
List-Post: <mailto:mpls@ietf.org>
List-Help: <mailto:mpls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mpls>, <mailto:mpls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 08 Apr 2021 13:04:46 -0000

Loa and all,

Regarding one of the example questions in the agenda, namely "- does scanning the entire stack have performance impacts".



AFAIK most (if not all) off-the-shelf-available NPUs have limits on the depth of the label stack in which they, say, can see the <ELI, EL> pair - see also RFC 8662<https://tools.ietf.org/html/rfc8662> that has introduced the notion of Entropy Readable Label Depth (ERLD).



To me this means that in most cases scanning the entire label stack requires pushing the packet for slow path handling with the associated performance impact.



Regards,

Sasha



Office: +972-39266302

Cell:      +972-549266302

Email:   Alexander.Vainshtein@rbbn.com



-----Original Message-----
From: mpls <mpls-bounces@ietf.org> On Behalf Of Loa Andersson
Sent: Thursday, April 8, 2021 3:37 PM
To: mpls@ietf.org
Cc: mpls-chairs@ietf.org
Subject: [mpls] agenda for the design team meeting tonite



NOTICE: This email was received from an EXTERNAL sender.





Tentative agenda for the MPLS WG Open DT on carrying info in an MPLS packet 2021-04-08 ===========================================================================



Calling the meeting

-------------------



- Apologies

   -- Yes, we had problem, and the Webex did go out late

- The times in the agenda is one hour off from what we said, at the

   wg chair meeting.

- Unfortunate collision with the IESG Teleconference

   Time: 07:00 US/Canada Pacific

         09:00 US/Canada Central

         10:00 US/Canada Eastern

         14:00 UTC

         15:00 United Kingdom

         16:00 Germany, France, Belgium

         17:00 Finland



   No ADs can participate today.



Tentative DT Structure

-------------------



Coordination: Loa Andersson

- meeting week 1 (e.g. this week)





Track 1: J Doe

- meeting Week 2 and 4



Track 2: K Doe

- meeting Week 2 and 5





DT output / Track output

------------------------



- Document(s) that address general architecture, at BoS architecture and

   in the SPL architecture



- Could be a single document or three documents, possibly a BCP with

   3 RFC



- DT charter (?) anyone that want to work on it

   -- The design team will not takc over the solutions documents, but

      create architectural guidelines that should support the development

      of the solutions documents



DT input

--------

draft-bryant-mpls-dev-primer (walk through)





Questions

---------



- What questions do we want answered

   -- example 1 - would it be beneficial to know already from the

      top label what to look for

   -- example 2 - does scanning the entire stack have performance impacts



- Decisions?

   -- how to keep track



- How do we document this

   -- should we use the wiki?







/Loa

--



Loa Andersson                        email: loa@pi.nu<mailto:loa@pi.nu>

Senior MPLS Expert                          loa.pi.nu@gmail.com<mailto:loa.pi.nu@gmail.com>

Bronze Dragon Consulting             phone: +46 739 81 21 64



_______________________________________________

mpls mailing list

mpls@ietf.org<mailto:mpls@ietf.org>

https://clicktime.symantec.com/3EHDLWkmGWWE4481kNXVLt36H2?u=https%3A%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Fmpls



Notice: This e-mail together with any attachments may contain information of Ribbon Communications Inc. and its Affiliates that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.

Notice: This e-mail together with any attachments may contain information of Ribbon Communications Inc. and its Affiliates that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.