[Serusers] ser/rtp exerciser

[Nils Ohlmeier]

On Thursday 11 March 2004 09:18, Andrei Pelinescu-Onciul wrote:
> On Mar 11, 2004 at 09:05, Nils Ohlmeier <nils at iptel.org> wrote:
> > And if you plan to develope such a tool: keep in mind what will reach its
> > bottleneck first the tester or the tested device. RTP simulation with the
> > numbers you are looking for is probably only possible with specialist
> > hardware and not with normal PC (at least these guys at SIPit had special
> > hardware boxes for these tests and i guess they know why). I guess that a
> > normal PC will reach its own limits at 1000 or at least at 10000
> > simultaneous RTP calls, maybe even earlier.
>
> Depends on the codec and network you use. 10000 gsm would be easy. You
> also don't need to encode some valid stuff, you generate on packet and
> just slightly modify it before sending.
> On gigabit you can send 120Mb/s over udp (athlon 2000+).

Ok i was not speaking about just blowing out packets, but also compare what 
did you received. AFAIK these commercial tools also provide some statistics 
about the sound quality (packet loss rate etc.).
And on the other side i do not consider gigabit as normal, because this is 
only realistic in a local environment but not for a public server (naturally 
you can put a gigabit card into your server, but a gigabit uplink just for 
your server is a little bit unrealistic today, or?)

  Nils