On 2004-02-23, JINMEI Tatuya / [EMAIL PROTECTED]@C#:H wrote:
> >>>>> "Nick 'Sharkey' Moore" <[EMAIL PROTECTED]> said:
>
> > You might recall some time ago I stirred up some interest
> > in my Optimistic DAD draft, [...]
> > Please let me know what you think ... and if there's enough
> > interest maybe we can discuss it further at Seoul.
>
> I'd like to know if there has been a consensus to pursue any sort of
> DAD optimization in the first place. There have surely been lots of
> discussions related to this issue, and, as far as I can recall, the
> idea of optimization has never been adopted.
It's definitely one of the bigger issues in MobileIPv6, but I think
that the implications go beyond that which is why it's appropriate
to IPv6 WG.
> One fundamental question that I remember is whether optimizing DAD
> really makes much sense while there are other kinds of delays such as
> random delay (up to 1 second) for the first RS and random delay at
> routers before responding to an RS. Without addressing the
> fundamental question(s), we'd simply restart similar divergent
> discussions, waisting lots of energy and time without seeing progress.
Yes. My presentation at MobileIP WG at IETF-56 listed four component
delays in MobileIPv6 handovers:
* Movement Detection Delay
* Router Advertisement Delay
* DAD Delay
* Binding Update RTT
We've been working on the possible ways to eliminate each of these
delays ... Optimistic DAD is one solution to one delay.
You might find the stuff at <http://bluesky.zoic.org/sharkey/>
interesting ...
> p.s. I've read the latest draft and have some (mainly editorial)
> comments. I'll post the comments in a separate message.
Thanks!
-----Nick
--
Nick 'Sharkey' Moore <[EMAIL PROTECTED]> <http://zoic.org/sharkey/>
"Heroism on command, senseless violence, and all the loathsome
nonsense that goes by the name of patriotism -- how passionately
I hate them!" -- Albert Einstein
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