Network association algorithm

[John Watlington]

On May 2, 2007, at 2:10 PM, Javier Cardona wrote:

> Hi John, Dan,
>
>> 1. The XO finds an established MPP (w. DHCP), and uses it for
>> internet access.
>> 2. The XO finds an AP, and becomes an ad-hoc MPP (no DHCP)
>> 3. The XO finds an ad-hoc MPP (no DHCP), and uses it for internet  
>> access
>> 4. The XO finds no AP nor MPP, and becomes a mesh node on channel 1
>> w. no internet access
>
> Some questions...
>
> 1. Is this algorithm using the MPP anycast address to discover the  
> best MPP?

Yes.

> 2. Is DHCP replacing the non-standard MPP requests used by mpp-utils?

No.   DHCP is used for IP address assignment (and it does provide a  
default
nameserver and gateway).
The non-standard MPP requests are still being used to find the optimum
nameserver and gateway, given a laptops current position in the mesh.

> I was contacted a while ago by Miguel Alvarez (miguel at laptop.org) who
> is looking for a more "standards compliant" mechanism to configure
> MPs.  He suggested to replace the custom mppreqs with DNS-SD.  Has he
> been part of these discussions?

I'll let Miguel answer that.

> Cheers,
>
> Javier
>
> -- 
> Javier Cardona
> cozybit Inc.
> p 415 974 6770
> f 415 974 6771
> c 415 630 0627
> e javier at cozybit.com