On 13-01-14 17:38, Gianluca Cecchi wrote:
Hello,
any feedback about VoIP softswitches on virtual servers?
I found this positive whitepaper on VMware web site but it seems
mostly related to Class5 softswitches (intended for work with
end-users):
http://www.vmware.com/files/pdf/techpaper/voip-perf-vsphere5.pdf
I would like to know about real experiences and Class4 softswitches
too (used for transit VoIP traffic between carriers).
I have no experience with oVirt VoIP but here is some general feeback.
This has been asked several times on the Asterisk mailing list so you
might want to search those archives. If you want to use an E1 or T1 then
last time I looked it's a no go because (at the time) passing on PCI(e)
cards to a VM was not working very well. If you use all SIP than your
mileage may vary. It all depends on how much load the box has from the
other VMs. The less load on the entire box the better and the less VMs
run on the box the better and the less the VoIP software does to the
actual calls in transit the better. And if there's no clock skew the
calls might even sound ok. Best thing you can do is setup a proof of
concept and load it with hundreds or thousands of calls. Then add a few
other VMs and let them do stuff that causes disk reads/writes and
network send/receives (aka a lot of interrupts). Then see what happens
to your calls. In general, the more calls the bigger the chance that
(clusters of) bare metal boxes are used.
Regards,
Patrick
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
