Re: WLAN (was Re: IPv6 Host Configuration of Recursive DNS Server)

[Greg Daley <greg.daley at eng.monash.edu.au>]

Hi Pascal,

Pascal Thubert (pthubert) wrote:
> > In any discovery this is going to be a problem, since
> > any discovery will require multicast at the MAC layer.
>
>
> Note that if the hub and spoke quality of the 802.11 (enterprise mode)
> network was not lost on the way of emulating ethernet, then the
> discovery could happen in an alternate fashion, adapted to that L2. Just
> like you have inverse ARP for FR networks, you could have a form of
> inverse ND, which does not require L2 broadcast.
>
> An example of that: AP could be a master, owning and defending a range
> of addresses, and the visitors could get an address from the AP. I
> remember discussing that with Nick Moore at the last IETF and his
> suggestion to make the 'range' a modulus 2^16, so that in this example
> an AP would own all suffixes ending with a given value of the 2 last
> bytes, for all values of the first 6 bytes in the suffix. This proposal
> allows an AP to defend all its addresses on the wire side using a single
> multicast address... 

Oh that Nick and his crazy ideas :) ...

I think that the Point-to-Point idea has some merits,
but the applicability is not general.

I think that if we're going to keep the ethernet-like
nature of WLAN (it is a deployed base) then the
hosts which are aware of their performance issues
need to respond to them.

I'll see if I can come up with a reasoned description
of my idea in a draft.

(reasoned may be the difficult part for me).

Greg


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