>> I've not seen a consensus to rewrite ND from 08 to what it is
>> today. I've seen Geoff at the mike in favor, and you saying don't worry
>> I'll work with the author of ND simple and sort that out. Hardly a
>> consensus to me.
> 
> WG direction is an issue for the chairs... 

Well, no, this is an issue for the WG.

There was some vocal opposition to the complexity of ND-08.  Since I was a 
co-author of ND-08, I wasn't in a position to judge consensus as a WG chair, 
but if I had been, I would have said very, very rough consensus at best.

I didn't co-author ND-09.  I do think personally that ND-09 is in reasonable 
shape, and I haven't heard strong technical arguments against it.  With the 
exception of Pascal, all ND-08 authors seem to like it (even though each of us 
probably would do some little thing in a different way).  But, very 
importantly, this is not a paste-over-the-disagreements compromise solution: It 
is a solid redesign based on some evolved assumptions on what the base 
6LoWPAN-ND protocol has to do and what not.

Now my questions to the WG:


1) Are these evolved assumptions correct?

The most important change is that the assumption is now that we can fully 
rely*) on the uniqueness of EUI-64 identifiers.

Another assumption is that staying as close to the formats of RFC 4861 as 
possible is a good thing.


2) Is the protocol defined in ND-09 successfully solving the problem?

If the above assumptions are correct, is ND-09 the right protocol?  Does it 
work?

If you think that additional functions such as backbone router, or possibly 
using DHCP servers for certain configuration functions, are needed: can these 
be added as separate documents**), with hosts implementing just ND-09 still 
working correctly?


3) Is the document that is ND-09 good enough?

Does it define the protocol unambiguously?
Is the terminology acceptable?


I would like the WG to make some progress on these questions this week.
Please speak up.

Gruesse, Carsten


*) [From my personal point of view, this is mainly burden-shifting to the 
commissioning/security process, but it is not unreasonable to do so.]

**) [Yes, it would be nice to have these documents, to make sure we understand 
fully how they fit together with ND.  But I don't think we have to wait for all 
of them.]

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