[Freeswitch-users] FS failover redundancy & load balancing

[Tristan]

Hi Ashley,

One easy solution is to use a SIP proxy (opensips/kamailio/...) in front 
of FS boxes to load balance the charge between boxes.

FS already has mechanisms to limit number of calls per boxes ( in 
switch.conf.xml: max-sessions and  sessions-per-second ),
that you can couple to load_balancing modules of the sip proxies.

Of course you'll have to test to know how many session one box can 
handle, has it depends a lot on your usage of FS.

Don' hesitate to join us on IRC if you want to discuss it ;)

Regards,

Gled

Ashley van Gerven a écrit :
> 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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