From:
roll-bounces at ietf.org [mailto:roll-bounces at ietf.org] On Behalf Of Anders
Brandt
Sent: mardi 13 octobre 2009 11:54
To: JP Vasseur (jvasseur); Jerald.P.Martocci at jci.com
Cc: roll-bounces at ietf.org; IETF ROLL
Subject: Re: [Roll] NA to transport DAO
Needless to say I also consider myself one of those people...
As discussed in the interim meeting, p2p mesh support is actually
required in 50% of the requirement drafts forming the base of this working
group.
In IETF terms,
Nodes MUST be able to use (somewhat optimized) p2p to communicate
internally and MAY need to talk to an LBR.
- Anders
From: roll-bounces at ietf.org
[mailto:roll-bounces at ietf.org] On Behalf Of JP Vasseur
Sent: 13. oktober 2009 04:53
To: Jerald.P.Martocci at jci.com
Cc: roll-bounces at ietf.org; IETF ROLL
Subject: Re: [Roll] NA to transport DAO
I guess I am
one of those people that think that other 6LoWPAN nodes must participate in
RPL. Unless I am missing something RPL is the only game in town regarding
meshing of wireless sensors. If they are not in RPL is there another
means that they can use to form mesh connectivity to get to the LBR?
You interpretation is of course correct.
Jerry
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>>>>> "Pascal" == Pascal Thubert
<(pthubert)" <pthubert at cisco.com>>
writes:
Pascal> We are in perfect line. At the moment, RPL would
impose
Pascal> NS/NA between 6LoWPAN routers to expose the host
routes.
I have just read 6lowpan-nd-06.txt
Some things immediately jump out at me:
1) small packets are much more common, so DAOs may not fit
into ND.
2) multicast is not assumed, so the Whiteboard is used.
3) nodes that are sleepy, are not going to be useful as
members of
an RPL DAG, so
really, it's about RPL between the Edge Routers.
It seems to me therefore that the only nodes in a 6lowpan that can
participate in a RPL DAG would be the edge router that runs a
Whiteboard.
I think you capture this in your above sentence. I do not think that
the 6LoWPAN routers will be speaking NR/NC between themselves along
their "backbone", but I could be wrong.
I also think that some other people may be thinking that many more
6LoWPAN nodes will participate in RPL than just the edge routers.
- --
] He who is tired of Weird Al is tired of life!
| firewalls [
] Michael Richardson, Sandelman Software Works, Ottawa, ON
|net architect[
] mcr at sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/
|device driver[
Kyoto Plus: watch the video <http://www.youtube.com/watch?v=kzx1ycLXQSE>
then sign the petition.
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