Initially I wrote a long email with a point-by-point reply, but then I
found what I think could be the source of our misunderstanding:

On 2011-08-12 08:32, [email protected] wrote:
> BitTorrent and Skype are definitely cases that show othersiwse.
> 
> As the detailed analysis I stated in the previous email, but don't mind to
> explain again:
> 
> When BT Client initiates a downloading it first uses the same 
> source port to connect to the different destinations (destination IP and 
> port) 
> therefore a source port multiplexing different sessions. Data shows maxium
> port usuage reaches 160, while session usuage continously stays above 450.
> 
> Skype is another example that uses a source port to multiplex 
> different sessions thereby introducing less source port than sessions on NAT.
> Data shows less than a couple of ports achieve more than a hundred sessions!

In your experiments, do you measure port and session usage on the NAT,
on the internal host, or both? It's not clear to me when reading your
experiment results at
http://opensourcev6transtechnologies.weebly.com/experiments-results.html

Thanks,
Simon
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