[6lowpan] LLN roadmap documents: more missing pieces

Michael Richardson <mcr+ietf@sandelman.ca> Tue, 12 June 2012 19:39 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: 6lowpan@ietf.org, roll@ietf.org, 6man@ietf.org
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Date: Tue, 12 Jun 2012 15:39:06 -0400
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Subject: [6lowpan] LLN roadmap documents: more missing pieces
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In a private (IM) chat between Carsten Bormann and I, we realized that there
was prescious little consensus about what building blocks will be used

For instance, I have assumed that a ROLL RPL network would not need 
the ND parts of 6lowpan-ND, only the DAD parts (if DAD was important).

That ND was unnecessary in for RPL nodes as the DAOs and DIOs served the
same purpose.  This surprised some others.  What Carsten said was that
some kind of roadmap was necessary.

In another hallway conversation at Paris, I came to understand that for
layer-2==Zigbee, that on Zigbee Controllers would ever need to run RPL,
and that the regular nodes (such as light switches, forgive me, I do not
recall their Zigbee name), would only communicate with a controller.

This in contrast to what I know the home automation/P2P people are

Finally, I wanted to bring your attention to 

which I'm told 6man is supposed to consider.  
On some networks you can not send the DAOs or NDs out until you do this.

I want to ask if it belongs in ROLL or 6lowpan.

Michael Richardson <mcr+IETF@sandelman.ca>ca>, Sandelman Software Works 
IETF ROLL WG co-chair.    http://datatracker.ietf.org/wg/roll/charter/