Thank you, that helps! When you say "hub" it's synonymous to servent/peer, I assume.

So it is really that simple: caches remove IPs from the list in the same order they entered. My first impression is that this is beautifully simple, but is it very efficient? Because some peer stay online for years, others maybe just for seconds.

EDIT: I just remembered reading a paper researching the average uptime (online time) of Gnutella peers. If I remember correctly a great majority of the peer were online several days. So the values of "year" vs. "seconds" I mentioned are rare stray offs without much influence.


Regards,
Alex