[p2p-hackers] Testing scalability on a P2P network

[Frank Moore]

Hi,

Can anyone give me some pointers on scalability testing a P2P network?
In theory if a P2P network works with N users, it should be possible to 
scale up to larger numbers i.e. N*10, N*100 etc....
But is there any way of actually testing this and if so how have other 
people done it?

Thanks,
Frank.