Re: [Roll] I-D Action: draft-ietf-roll-applicability-home-building-10.txt

Joakim Eriksson <joakime@sics.se> Mon, 27 April 2015 07:09 UTC

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From: Joakim Eriksson <joakime@sics.se>
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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,

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/
> 
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