[Asterisk-biz] Forklift a 2000 phone PBX - 5000 calls up - WAY up

[alex at pilosoft.com]

On Sat, 16 Apr 2005, Paul Mahler wrote:

> By our calculations, 5000 SIP channels = 10000 ulaw stream @ 80k stream
> = .8 gigabit. Our total available bus bandwidth is arount 56 Gbps, as
> compared to the pc with about 128 Mbps. We can add a bunch of NICs, so
> blowing past 1Gb isn't really a problem.
> 
> We ran the benchmark with app_milliwatt which sends the audio on one
> side of the call. SIP by default will echo back anything it recieves on
> rtp ports which will completes the round trip.
> 
> Anyway, whatever it is we are testing, we get over 5000 of them before
> the MOS starts to degrade. This is compared to 300 of them on a PC based
> machine with comparable hardware before call quality degrades.

> So yes, we are getting 5000 calls on one base unit, and we can cluster
> more base units on the same bus for a LOT of calls.
More details, please.

Are you using Asterisk? What bus? H.110? Did you write drivers for H.110 
bus for Asterisk?

-alex