Re: [Help-gnunet] Noise pollution

[Christian Grothoff]

On Tuesday 22 November 2005 16:31, Bram Neijt wrote:
> Hi.
>
> I was wondering how much noise it to much. Looking at the GNUnet-GTK
> stats, I sometimes get about 50% noise.
>
> Is there a rule to drop nodes sending to much noise? Because if not,
> this would be an easy attack on the system, right?

Nodes sending you noise will not be dropped per-se.  But your node recognizes 
that this is worthless traffic.  The bandwidth allocator will allocate more 
bandwidth to peers that send valueable traffic.  If peers send more traffic 
than was allocated to them, their connections will be dropped (but of course, 
the peer cannot prevent them from continuing to send UDP messages, which 
would then be immediately discarded).  

So there is no upper limit on noise, but peers are not free to send arbitrary 
amounts of it.  Also, check gnunet-stats for better traffic data, gnunet-gtk 
maybe misleading since it gives you snapshots over short periods of time.

Christian