[Asterisk-Users] Scalability of chan_oh323

[BJ Weschke]

 It is indeed much higher. I'm using it here in production w/o media
running through it and it is supporting 400 connections with virtually
no load on it on a 1.8Ghz machine.

On 5/17/05, Alistair Cunningham <acunningham at integrics.com> wrote:
> Michael Manousos wrote:
> > Alistair Cunningham wrote:
> >> Michael Manousos wrote:
> >>> Alistair Cunningham wrote:
> >>>> I have a customer who wants to do large volumes of H.323 to H.323
> >>>> hairpinning. We haven't tested this scenario for large volumes
> >>>> before; maybe someone on asterisk-users has.
> >>>>
> >>>> If they buy a top of the line PC, how many concurrent calls are we
> >>>> likely to get? Routing logic will be simple, the machine won't be
> >>>> doing anything else, and let's assume no transcoding for now.
> >>>>
> >>>> We're not looking for an exact figure at this point, just a rough
> >>>> estimate for cost / benefit of Asterisk versus a proprietary system.
> >>>
> >>> Currently, without transcoding, you can get maximum 100 simultaneous
> >>> H.323 channels per box. With the next release of asterisk-oh323 this
> >>> number will be raised to ~180 channels. After that, major optimizations
> >>> at the OpenH323 RTP/jitter buffer code are required to push this number
> >>> up.
> >>>
> >>> Michael.
> >>
> >> That's a shame; my customer probably needs 400 to 500 channels (200 to
> >> 250 calls).
> >
> > I know but the performance bound is set by OpenH323. Also, an additional
> > note, these numbers are almost the same even when transcoding
> > (G.729 <-> G.711) is used.
> >
> >> Does anyone have experience of GNU Gatekeeper in proxy mode? Any idea
> >> of what load it can handle?
> >>
> >
> > GNUGK in full proxy mode (all signaling and RTP through it) has a
> > similar upper limit.
> >
> > Michael.
> 
> Michael,
> 
> Thanks for following up. You don't happen to know what the performance
> of GNUGK as a simple gatekeeper would be? In this case we could perhaps
> use it to load balance multiple Asterisks...
> 
> --
> Alistair Cunningham,
> Integrics Ltd,
> +44 (0)7870 699 479
> http://integrics.com/
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