Re: mac80211 user space

["Javier Cardona" <javier@cozybit.com>]

Johannes,

On Mon, Dec 8, 2008 at 11:52 AM, Johannes Berg
<johannes@sipsolutions.net> wrote:
> On Mon, 2008-12-08 at 10:17 -0800, Javier Cardona wrote:
>
>> To be useful for our mesh tests this "virtual air" would have to allow
>> us to create 3 groups, each one a superset of the previous.  The
>> smallest group would be the set of nodes that can a node communicate
>> with ("A can talk to B").  The next larger group would be nodes on
>> which a node that can interfere ("A can screw up C's reception").
>> Finally, the largest would be nodes that can detect each other ("A can
>> detect when D is transmitting").
>
> That's something we can't actually simulate since you're trying to see
> whether they do NAV updates correctly, right?

I was trying to simulate hidden nodes, which are unavoidable given the
distributed nature of the mesh.
Also trying to simulate "starvation at the edges", which varies
greatly with the collision avoidance threshold.
But, hey, I was just day dreaming.  Even the simpler air groups that
you proposed would be very useful.

Thanks!

Javier

-- 
Javier Cardona
cozybit Inc.