Re: [Roll] [roll] #163 (applicability-home-building): DAO Policy
Yvonne-Anne Pignolet <yvonne-anne.pignolet@ch.abb.com> Thu, 20 November 2014 00:06 UTC
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From: Yvonne-Anne Pignolet <yvonne-anne.pignolet@ch.abb.com>
To: "consultancy@vanderstok.org" <consultancy@vanderstok.org>, Routing Over Low power and Lossy networks <roll@ietf.org>
Thread-Topic: [Roll] [roll] #163 (applicability-home-building): DAO Policy
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Date: Wed, 19 Nov 2014 23:59:56 +0000
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Cc: "draft-ietf-roll-applicability-home-building@tools.ietf.org" <draft-ietf-roll-applicability-home-building@tools.ietf.org>, "yvonneanne.pignolet@gmail.com" <yvonneanne.pignolet@gmail.com>
Subject: Re: [Roll] [roll] #163 (applicability-home-building): DAO Policy
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Dear Peter Thanks for your suggestions on this and the other tickets I opened (#162-166). I agree with your proposed improvements and I am looking forward to the next version :) Regards Yvonne-Anne Yvonne-Anne Pignolet Dr. Sc. ETH Zürich ABB Corporate Research Segelhofstrasse 1K 5400 Baden-Dättwil, Switzerland Phone: +41 58 586 86 56 Mobile: +41 79 766 10 54 email: yvonne-anne.pignolet@ch.abb.com -----Original Message----- From: Roll [mailto:roll-bounces@ietf.org] On Behalf Of peter van der Stok Sent: Donnerstag, 13. November 2014 16:19 To: roll@ietf.org Cc: draft-ietf-roll-applicability-home-building@tools.ietf.org; yvonneanne.pignolet@gmail.com Subject: Re: [Roll] [roll] #163 (applicability-home-building): DAO Policy HI Yvonne, after some discussions we propose the following text, that you will easily recognize. Nodes send DAO messages to establish downward paths from the root to themselves. DAO messages are not acknowledged in networks composed of battery operated field devices in order to minimize the power consumption overhead associated with path discovery. The DAO messages build up a source route because the nodes are recommended to be in non-storing mode. If devices in LLNs participate in multiple RPL instances and DODAGs, it is highly recommended that both the RPLInstance ID and the DODAGID be included in the DAO. many thanks, Peter roll issue tracker schreef op 2014-11-10 23:09: > #163: DAO Policy > > Yvonne-Anne Pignolet: > In 4.1.3. The authors consider DAO policy to be > out of scope. However, if basic RPL is applicable for home and > building automation scenarios then due to P2MP traffic from roots > DAOs are required. As in the industrial applicability statement I thus > recommend a paragraph such as "Nodes send DAO messages to establish > downward paths from the root to themselves. DAO messages are not > acknowledged in networks composed of battery operated field devices in > order to minimize the power consumption overhead associated with path > discovery. If devices in LLNs participate in multiple RPL instances > and DODAGs, it is highly recommended that both the RPLInstance ID and > the DODAGID be included in the DAO." If the mailing list consensus is > that P2P RPL is to be used only, then this Section should state that > DAO messages are not sent in this case. In addition a comment on > P2P-DRO Acknowledgement (P2P-DRO-ACK) would be helpful > > Peter van der Stok: > Some text to motivate the out of scope of DAO policy can be added. > For the multiple RPL instances, I prefer to include a reference to > other > texts. _______________________________________________ Roll mailing list Roll@ietf.org https://www.ietf.org/mailman/listinfo/roll
- [Roll] [roll] #163 (applicability-home-building):… roll issue tracker
- Re: [Roll] [roll] #163 (applicability-home-buildi… peter van der Stok
- Re: [Roll] [roll] #163 (applicability-home-buildi… Yvonne-Anne Pignolet
- Re: [Roll] [roll] #163 (applicability-home-buildi… roll issue tracker
- Re: [Roll] [roll] #163 (applicability-home-buildi… roll issue tracker