Re: [Roll] Roll post from thomas at thomasclausen.org requires approval

[JP Vasseur <jvasseur at cisco.com>]

On Oct 15, 2009, at 1:47 AM, roll-owner at ietf.org wrote:

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   From:    thomas at thomasclausen.org
   Subject: Re: [Roll] feedback on draft-ietf-roll-rpl-03
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From: Thomas Heide Clausen <thomas at thomasclausen.org>

Date: October 15, 2009 1:47:31 AM PDT

To: "Mathilde Durvy (mdurvy)" <mdurvy at cisco.com>

Cc: "Emmanuel Baccelli" <Emmanuel.Baccelli at inria.fr>, "ROLL WG" <roll at ietf.org>

Subject: Re: [Roll] feedback on draft-ietf-roll-rpl-03

My 2 cents...

On Oct 15, 2009, at 10:44 AM, Mathilde Durvy (mdurvy) wrote:

Hi Emmanuel,

 

I very much agree with your comments. Especially with the two points below that could reduce a lot the complexity.

# Section 2

I am wondering if some of the terms are unecessary at this point. In particular, DAG siblings. Since siblings introduce quite a tricky complexity/benefit trade-off, I would be in  favor of getting rid of these in the core RPL document. This could be a welcomed simplification.

Agree, for me siblings are note part of the core.

+1

-1 ;-) Actually this is not so bad ... yes you need a loop detection mechanism or just limit the TTL for the moment.

 

 # Section 3.2.1: 

"RPL constructs one or more DAGs". The consensus is that the core RPL document should specify how to build a single DAG to reach a single destination. This may be used to simplify the document a bit. 

Agree. I think what is needed are just procedures to join a DAG and leave a DAG.  

+1

Oh yes, we already reached a consensus on this in the WG. Applicability statements are there to explain how to use more than one. There will be another ID to identify the DAG, discuss jump DAG, out of the core spec.

Thanks.

JP.

Thomas

Best,

Mathilde 

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