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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