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Fri, 11 Oct 2019 11:08:37 +0000 Received: from DB6PR05MB4647.eurprd05.prod.outlook.com ([fe80::105b:fc59:1c9e:10a3]) by DB6PR05MB4647.eurprd05.prod.outlook.com ([fe80::105b:fc59:1c9e:10a3%7]) with mapi id 15.20.2347.016; Fri, 11 Oct 2019 11:08:37 +0000 From: Christian Hopfner To: "draft-ietf-6tisch-msf@ietf.org" , "6tisch@ietf.org" <6tisch@ietf.org> Thread-Topic: Clarification on MSF-06 Thread-Index: AQHVgCJg6rB2y0zdwUaGjL2mNkbMnA== Date: Fri, 11 Oct 2019 11:08:37 +0000 Message-ID: Accept-Language: en-US, de-DE Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Authentication-Results-Original: spf=none (sender IP is ) smtp.mailfrom=christian.hopfner@endress.com; x-originating-ip: [80.149.176.5] x-ms-publictraffictype: Email X-MS-Office365-Filtering-Correlation-Id: 144de130-ac7d-49f6-50ed-08d74e3b611b X-MS-TrafficTypeDiagnostic: DB6PR05MB3207:|AM0PR05MB5170: X-Microsoft-Antispam-PRVS: x-ms-oob-tlc-oobclassifiers: OLM:8882;OLM:9508; x-forefront-prvs: 0187F3EA14 X-Forefront-Antispam-Report-Untrusted: SFV:NSPM; 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Ip=[13.79.242.66]; Helo=[iqsuite.endress.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR05MB5170 Archived-At: Subject: [6tisch] Clarification on MSF-06 X-BeenThere: 6tisch@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Discuss link layer model for Deterministic IPv6 over the TSCH mode of IEEE 802.15.4e, and impacts on RPL and 6LoWPAN such as resource allocation" <6tisch.ietf.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Oct 2019 11:08:54 -0000 --_000_DB6PR05MB4647384C3E3AF8821E34ED62FA970DB6PR05MB4647eurp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi authors, I may raise a clarification question before issuing WGLC for this draft. In the past there was a section in the draft dealing with neighbor pollin= g which seems to me beeing an important topic in terms of schedule consis= tency. In the latest version I don=27t see a mechanism which explains how a pare= nt keeps its schedule clean after some children silently disappeared (e.g= . batteries are gone). As per my understanding in such a case the negotia= ted RX cell towards the child remains in the schedule forever right=3F Previously this was handled by neighbor polling. Which required the paren= t to send KA packets in a periodic manner to its childset. (This could be= identified by evaluation of the neighbor set where a negotiated RX cell = was scheduled to) What is the idea now how to deal with that issue=3F Mit freundlichen Gr=FC=DFen I Best regards Christian Hopfner Developer | TPI F&E Plattform Informatik Endress+Hauser SE+Co. KG | Hauptstrasse 1 | 79689 Maulburg | Germany Phone: +49 7622 28 1883 christian.hopfner@endress.com | www.pcm.endress.com Endress+Hauser SE+Co. KG Registergericht: Amtsgericht Freiburg i.Br. HRA 670225 Sitz der Gesellschaft: Maulburg Pers=F6nlich haftender Gesellschafter: Endress+Hauser Administration SE Sitz des pers=F6nlich haftenden Gesellschafters: Maulburg Registergericht: Amtsgericht Freiburg i.Br. HRB 717326 Vorstand: Dr. Andreas Mayr, Dr. Peter Selders Aufsichtsratsvorsitzender: Matthias Altendorf Gem=E4ss der Datenschutzgrundverordnung (EU-DSGVO) sind wir verpflichtet,= Sie zu informieren, wenn wir personenbezogene Daten von Ihnen erheben. Dieser Informationspflicht kommen wir mit folgendem Datenschutzhinweis na= ch. Endress+Hauser SE+Co. KG Register Court: Local Court of Freiburg i.Br. HRA 670225 Registered Office: Maulburg General Partner: Endress+Hauser Administration SE Registered Office of General Partner: Maulburg Register Court: Local Court of Freiburg i.Br. HRB 717326 Chief Executive Officer: Dr. Andreas Mayr, Dr. Peter Selders Chairman of the Board: Matthias Altendorf According to the General Data Protection Regulation, we are obliged to in= form you when collecting your personal data. We comply with this information duty with the following Data Protection S= tatement. Disclaimer: The information transmitted is intended only for the person or entity to = which it is addressed and may contain confidential, proprietary, and/or p= rivileged material. Any review, retransmission, dissemination or other us= e of, or taking of any action in reliance upon, this information by perso= ns or entities other than the intended recipient is prohibited. If you re= ceive this in error, please contact the sender and delete the material fr= om any computer. 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Hi authors,

I may raise a clarification question before issuing WGLC for this draft.<= /div>

In the past there was a section in the draft dealing with neighbor pollin= g which seems to me beeing an important topic in terms of schedule consis= tency.

In the latest version I don=27t see a mechanism which explains how a pare= nt keeps its schedule clean after some children silently disappeared (e.g= . batteries are gone). As per my understanding in such a case the negotia= ted RX cell towards the child remains in the schedule forever right=3F

Previously this was handled by neighbor polling. Which required the paren= t to send KA packets in a periodic manner to its childset. (This could be= identified by evaluation of the neighbor set where a negotiated RX cell = was scheduled to)

What is the idea now how to deal with that issue=3F


Mit freundlichen Grüßen I Best regards

Christian Hopfner

Developer | TPI F&E Plattform Informatik
Endress+Hauser SE+C= o. KG | Hauptstrasse 1 | 79689 Maulburg | Germany
Phone: +49 7622 28 1= 883
christian.hopfner@endress.com | www.pcm.endress.com

Endress+Hauser SE+Co. KG
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Vorstand: Dr. Peter Selders
Aufsichtsratsvorsitzender: Matthias Altendorf

Gemäss der Datenschutzgrundverordnung (EU-DSGVO) sind wir = verpflichtet, Sie zu informieren,
wenn wir personenbezog= ene Daten von Ihnen erheben.

Dieser Informationspflicht kommen wir mit folgendem Da= tenschutzhinweis nach.

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Register Court: Local Cou= rt of Freiburg i.Br. HRA 670225
Registered Office: Maulbur= g
General Partner: Endress+Hauser Administration SE=
Registered Office of General Partner: Maulburg
Re= gister Court: Local Court of Freiburg i.Br. HRB 717326
Chief Executive Officer: Dr. Peter Selders
Chairman of the Board: Matthias Altendorf

According to the General Data Protection Regulation,
= we are obliged to inform you when collecting your personal data.
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The informati= on transmitted is intended only for the person or entity to which it is a= ddressed and may contain confidential, proprietary, and/or privileged
= material. Any review, retransmission, dissemination or other use of, or t= aking of any action in reliance upon, this information by persons or enti= ties
other than the intended recipient is prohibited. If you receive t= his in error, please contact the sender and delete the material from any = computer.
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