IP Technical question

[Ian Batten]

>
>
> Someone from NTT (Nipon Telecom) gave a presentation at the IETF-72  
> technical presentation about their practical experience of the  
> number of connections:
>
>  http://www.ietf.org/proceedings/08jul/slides/plenaryw-2/sld1.htm
>
> They found it is not uncommon for applications, including several  
> popular ones, to use many simultaneous connections - >250 for  
> iTunes! They found 500 simultaneous connections to be the average  
> for their users (that figure sounds surprisingly high to me).

My household network is complex (four Macs, two work laptops, AppleTV,  
a couple of Solaris machines, iPods and iPhones, etc, etc) and I've  
never seen more than a hundred connections active through the firewall  
of the moment.  As of now (and there are people in the house) there  
are 51 active TCP connections and 39 UDP flows active.

I wonder if they're seeing P2P in action again, and their `500  
average' is actually 95% with 10 connections and 5% with a zillion.

I simply don't believe the iTunes figure.  It's running on the Mac on  
my desk and there's a total (ie not ascribed to iTunes, _total_) of  
less than fifty sockets in connected states.

ian