[Freeswitch-users] FS failover redundancy & load balancing

Kristian Kielhofner kristian.kielhofner at gmail.com
Fri Apr 3 14:42:29 PDT 2009

You could try (although it's somewhat bleeding edge) to use OpenSIPS
1.5 with load_balancer (not heavily tested, btw) in front of some
FreeSWITCH machines:


2009/4/2 Ashley van Gerven <ashley.ohq at gmail.com>:
> Hi,
> I can't find much info on setting up a redundant or heavy load FreeSwitch
> implementation. Are there any
> links apart from: http://wiki.freeswitch.org/wiki/Enterprise_deployment ?
> I imagine the entry level solution is to have two FS boxes configured
> identitcally, with
> redundant SBC software (recommendations?) in front, passing the calls to the
> primary FS box,
> or the backup FS box if the primary is not responding. Is that the easiest
> solution?
> What about a situation of having a level of concurrent calls beyond what one
> FS box can handle? I realise
> that would be a very large number of concurrent calls, but we would need a
> good plan on how to scale the
> systems.
> Are there recommendations for load balancing solutions? Either soft or
> hardware?
> My guess would be having 3 + 1 spare FS servers would work, where calls are
> distributed accross 3 FS boxes
> by a load balancer with one spare in event of failure.
> Also how would a FS box at max capacity behave? Does FS monitor available
> resources and reject the
> excess calls that it can't handle? Or would the load balancer have to be
> configured with the maximum number
> of calls per box?
> Would love to hear some experiences of deploying FS with failover & high
> load.
> Thanks
> Ash
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Kristian Kielhofner

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