I FOUND IT!!!

At least I were able to track this down very far. It seems it only appears on Port 80. So might 
there be a problem if too many sockets are sharing the same port? In this case, port 80?

What can I do now? The problem is still there. All 60 seconds a break for 5 seconds. I am not really 
willing to reboot anymore. So bug-hunters, please help.

Francois Romieu wrote:

Christian Schmid [off-list ref] :

quoted

I started it after one break-cyclus and stopped it immedately after the 
next break-cyclus ended.

I'd welcome several cycles to feed the data through gnuplot.
A sample based on 15 minutes or more would not hurt: I speak perl too.

--
Ueimor