Re: [Roll] I-D Action: draft-ietf-roll-applicability-home-building-10.txt
peter van der Stok <stokcons@xs4all.nl> Wed, 29 April 2015 07:26 UTC
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Date: Wed, 29 Apr 2015 09:26:46 +0200
From: peter van der Stok <stokcons@xs4all.nl>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
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Subject: Re: [Roll] I-D Action: draft-ietf-roll-applicability-home-building-10.txt
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Hi Joakim, thanks for your remark. A channel models the transport through space of e/m waves between two interfaces. An asymmetric channel corresponds with asymmetric transport. I prefer channel over link, as link usually does not include the concept of transport. I agree that opinions may differ, but the text is clear as it is? Concerning ETX. The authors and other people generally recommend ETX. Do you have a better proposal backed up by evidence? I will be happy to hear about it. Greetings, peter Joakim Eriksson schreef op 2015-04-27 09:09: > Hi, > > Had a very brief read and have a quick question: > > "Packets from asymmetric and/or unstable channels SHOULD be deleted at > layer 2." > > Do we really mean channel here? asymmetric channel sounds strange - I > guess > it should be asymmetric link and/or unstable (high in interference?) > channels? > > Otherwise I might have missed something in the terminology. > > And ETX as the recommended objective function is better than OF0 but > ETX is not giving a good network topology in some cases and since this > is aiming at control I do not think it is the best choice. > Interactivity needs > less loss than the objective of being energy efficient. > > Best regards, > — Joakim Eriksson, SICS > > > >> On 27 Apr 2015, at 08:56, internet-drafts@ietf.org wrote: >> >> >> A New Internet-Draft is available from the on-line Internet-Drafts >> directories. >> This draft is a work item of the Routing Over Low power and Lossy >> networks Working Group of the IETF. >> >> Title : Applicability Statement: The use of the RPL >> protocol suite in Home Automation and Building Control >> Authors : Anders Brandt >> Emmanuel Baccelli >> Robert Cragie >> Peter van der Stok >> Filename : draft-ietf-roll-applicability-home-building-10.txt >> Pages : 32 >> Date : 2015-04-26 >> >> Abstract: >> The purpose of this document is to provide guidance in the selection >> and use of protocols from the RPL protocol suite to implement the >> features required for control in building and home environments. >> >> >> The IETF datatracker status page for this draft is: >> https://datatracker.ietf.org/doc/draft-ietf-roll-applicability-home-building/ >> >> There's also a htmlized version available at: >> http://tools.ietf.org/html/draft-ietf-roll-applicability-home-building-10 >> >> A diff from the previous version is available at: >> http://www.ietf.org/rfcdiff?url2=draft-ietf-roll-applicability-home-building-10 >> >> >> Please note that it may take a couple of minutes from the time of >> submission >> until the htmlized version and diff are available at tools.ietf.org. >> >> Internet-Drafts are also available by anonymous FTP at: >> ftp://ftp.ietf.org/internet-drafts/ >> >> _______________________________________________ >> Roll mailing list >> Roll@ietf.org >> https://www.ietf.org/mailman/listinfo/roll > > _______________________________________________ > Roll mailing list > Roll@ietf.org > https://www.ietf.org/mailman/listinfo/roll
- [Roll] I-D Action: draft-ietf-roll-applicability-… internet-drafts
- Re: [Roll] I-D Action: draft-ietf-roll-applicabil… Joakim Eriksson
- Re: [Roll] I-D Action: draft-ietf-roll-applicabil… peter van der Stok
- Re: [Roll] I-D Action: draft-ietf-roll-applicabil… Joakim Eriksson