[DNA-BOF] About DAD optimization solutions space

[Pekka Nikander <pekka.nikander@nomadiclab.com>]

[If anyone feels I should limit my posting rate to DNA,
  please state so.  OTOH, I think that the current issues
  are converging fairly fast.]

Greg Daley wrote:
> For the DAD optimization especially, since there are
> existing solutions, a set of goals may be sufficient.
> 
> I was actually thinking that we could aim at producing
> one optimization scheme as a 'first' standard, though.
> If we're going to choose one to standardize first though,
> we'd need to clearly demonstrate its sufficiency with
> regards the the goals and requirements.

To me, it looks likely that we may need two different
DAD optimization solutions: one for probabilistic, stateless
addresses, and another for statuful, pre-reserved addresses.
Preferably, these two should work at the same time, if needed.
The former category has the benefit of working with today's
routers and seamlessly with SEND CGAs, the latter has the
benefit of supporting non-probabilistic addresses and perhaps
working faster when both the routers and nodes support it.

--Pekka Nikander