RE: [DNA] RE: RS/RA Exchange

[Zhigao Chen <zgchen@psl.com.sg>]

Hi Alper,

> -----Original Message-----
> From: Alper Yegin [mailto:alper.yegin@samsung.com]
> Sent: Wednesday, March 10, 2004 2:52 PM
> To: 'Zhigao Chen'; 'Gregory Daley'
> Cc: dna@eng.monash.edu.au
> Subject: RE: [DNA] RE: RS/RA Exchange
>
>
> Hi Zhigao,
>
> > > In single cell-per-access router cases, this is not a big
> > > issue, though.  The only additional cost is computation on the
> hosts.
> > >
> > My understanding is that single cell per AR is more used in home or
> small
> > office networking.
>
> I don't think we can make this generalization. It is not uncommon to
> have single AP in the coffee shops (WISP case), or multiple APs in small
> offices (I had three in my 40 people office) today. And multiple APs in
> homes in near future.
>
It depends on how big the home or office is. The point I tried to make is
actually that single AP under an AR is not common. As such, unicast an RA
has the advantage of less traffic compared to multicast the RA.

> > DNA might not be needed for such scenario, I am afraid.
>
> I think you are assuming the hosts are stationary in the office/home.
> But note that people walk in and out of these locations with laptops,
> PDAs, IP-enabled phones, etc.
>
> Alper
>
Yes, what I mean is hosts are less mobile and more concerned with how to
fast access to the Internet in the case of single AP. As discussed in an
earlier email, DNA still comes into picture while mobility doesn't.

Regards,
Zhigao