Re: [6lowapp] Next version of charter proposal up on 6lowapp.net

[Henning Schulzrinne <[e-mail]>]

Right, but the bandwidth per device is really, really low. How many  
bits do you send each day to a thermostat or light switch? Are there  
any measurements of the realistic signaling load in such networks?

I'm worried about artificially constraining the solution space to  
solve a practical non-problem.

Henning

On Nov 8, 2009, at 10:18 PM, Stuber, Michael wrote:

> Keep in mind though, that much of that bandwidth is shared on these
> networks  In an 802.15.4 environment, devices will share a single
> channel.  If this work is successful there will be many constrained
> nodes within the network, rather than a single pair of nodes.
>
> -----Original Message-----
> From: [e-mail] [mailto:[e-mail]] On
> Behalf Of Henning Schulzrinne
> Sent: Sunday, November 08, 2009 6:33 PM
> To: Benoit Claise
> Cc: [e-mail]
> Subject: Re: [6lowapp] Next version of charter proposal up on
> 6lowapp.net
>
> I find this conflation of Smart Energy/HAN and LowApp confusing.  
> Most of
> the in-home networks are not exactly "challenged". Even ZigBee has 250
> kb/s (or 20 kb/s in the lowest-bandwidth mode), i.e., equivalent to
> early DSL or 1990's modems.
>
> Henning
>
> On Nov 8, 2009, at 9:20 PM, Benoit Claise wrote:
>
>> Carsten,
>>
>> Thanks for the new charter proposal.
>>
>> - "This WG is concentrating on requirements from energy (e.g. Smart
>> Energy 2.0) and building management applications."
>> Is the goal to describe these requirements in the "objectives and
>> architecture" document?
>> If not, where can we understand those requirements from?
>> The following were mentioned on the list:
>>
>> There are a lot of use cases to start with.  Here is a starter set:
>> 1)  OpenHAN:
>>
>> http://www.utilityami.org/docs/UtilityAMI%20HAN%20SRS%20- 
>> %20v1.04%20-%
>> 200808
>>
>> 19-1.pdf
>> 2)  SmartGridipedia:
>>
>> http://www.smartgridipedia.org/index.php/Category:Use_Cases
>> , both the
>> Intelligrid and Southern California Edison use cases are good
>> 3)  ZigBee/HomePlug Market Requirements and Use Cases (which we are
>> using for our Smart Energy V2 work):
>>
>> http://www.homeplug.org/products/ZBHP_SE_MRD_090624.pdf
>> Any other ones?
>>
>> "The framework will also specify specify a way to support interface
>> profiles, ..."
>> Can you expand on "interface profile".
>>
>>
>> "A document with operation and management advice about running a
>> network using these applications."
>> Is advice the right word? It seems like one or two advices are
>> sufficient to manage the network ;-)
>>
>>
>> Regards, Benoit.
>>> I have put a new version of the WG charter proposal on the wiki
>>> page at
>>> http://6lowapp.net
>>> =
>>> http://trac.tools.ietf.org/area/app/trac/wiki/6LowApp
>>> (charter text is at the end of the page).
>>>
>>> Obviously, I could not pick up every comment that was on the list
>>> (they were partially going in conflicting directions), but please
>>> do comment on the new version.
>>>
>>> Gruesse, Carsten
>>>
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>>
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