[Freeswitch-users] Network Card

[Anthony Minessale]

We don't give advice on load related questions outside what you have
already seen in this thread.

1000cps is obscene.  If you are actually getting paid for 1000cps you can
surely afford to invest in hardware and professional help.
On Aug 14, 2014 3:01 PM, "Andre" <andretodd at verizon.net> wrote:

> Just testing for now, no production traffic. Trying to find the breaking
> point.
>
>
>
> The reason for the questions are because I’m testing FS and after a
> certain point I am getting very high PDD, more than 6 seconds.  Per the
> CDR’s it takes about 6 seconds from start time in CDR Inbound to CDR
> outbound.
>
> I have tried 1 to 10 profiles to see if that makes a difference but it
> doesn’t and 1 to 4 consoles running one profile each still no difference.
>
>
>
> Any idea why the CDR’s should show it would take 6 seconds to get from
> start of inbound to start of outbound?
>
>
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Ken Rice
> *Sent:* Thursday, August 14, 2014 2:06 PM
> *To:* FreeSWITCH Users Help
> *Subject:* Re: [Freeswitch-users] Network Card
>
>
>
> 1000 CPS the NIC is not the bottle neck this is actually relatively small
> amount of TCP/UDP traffic for just the SIP message.
>
> Now the RTP @ 1000 calls on the other hand assuming G711 at 20ms ptime.
> And assuming 1 leg calls originating from a dialer would generate
> 80megabits of RTP (at the IP layer even more on the wire), and approx 50K
> PPS. Assuming 2 leg’d calls bridging media 160megabit and 100K PPS of just
> RTP...
>
> But then we have to extrapolate peak concurrent from 1000 CPS... Assuming
> dialer traffic again, 75% ASR and 20 second ACD, and lets assume the 25%
> are just hard failed for the calculation (no early media on these) that
> gives us 750 new calls/sec and over the course of 20 seconds we accumulate
> 15,000 concurrent calls..
>
> So lets take that and extrapolate bandwidth and PPS requirements for
> single leg’d calls of 1.43Gig/sec (on the wire) and 750K PPS so that’s
> going to exceed the bandwidth of a GIG-E connection so you’d have to break
> this into 2 RTP endpoints in sofia, and make sure you switches/routers
> could handle the PPS loads.
>
> Double that to 2 leg calls and you have 2.86G/sec of RTP (again on the
> wire including UDP, IP, ethernet framing over heads) and pushing 1.5million
> PPS.
>
> Here again this dictates at least 3 gig-e NICs on your FS box. Is this
> possible? I’m sure it is with the right hardware configuration... But lets
> step back a minute and really consider what is going on...
>
> You are now putting approx over $2000/hr of traffic on a very expensive
> box that can and will at some point fail. Why are you doing such a thing?
> You’re better off limiting rates to sub 1000 CPS, (say 500CPS) deploying 3
> boxes to handle the load in n+1 configuration, and if you lose a box you
> arent losing $2000+ in revenue and cranky customers while you
> repair/replace the now dead machine.
>
> Lets face it, you can purchase a colo a nice machine for say 200 to
> 300$/month (assuming bandwidth costs are the same as above so that’s a wash
> instead of trying to cram it all on box that ends up costing you 1000/month
> by the time you pay for the hardware and colocation expenses for it.
>
>
>
>
>
> On 8/14/14 11:56 AM, "Russell Treleaven" <rtreleaven at bunnykick.ca> wrote:
>
> 1000 calls per second... no idea but I really doubt the network interface
> is going to be the bottleneck.
> Not sure why you make a distinction here between sessions  and connected.
> To be clear you mean 5000 bridge calls correct?
> Since media is not an issue I think you can just start testing with sipp
> and bwm-ng to see what is what.
>
> 1000 calls per second is a very big number.
> Let us know how you make out.
>
> Sincerely,
>
> Russell Treleaven
>
>
>
>
>
> On Wed, Aug 13, 2014 at 5:40 PM, Andre <andretodd at verizon.net> wrote:
>
> 1000 calls per second and 10000 sessions with 4000 connected. What would
> be recommend?
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org [
> mailto:freeswitch-users-bounces at lists.freeswitch.org
> <freeswitch-users-bounces at lists.freeswitch.org>] *On Behalf Of *Russell
> Treleaven
> *Sent:* Wednesday, August 13, 2014 5:25 PM
> *To:* FreeSWITCH Users Help
> *Subject:* Re: [Freeswitch-users] Network Card
>
>
>
> If the media is bypassing you then you only need bandwidth for the
> signalling.
>
>
>
> Depends primarily on the calls per second.
>
>
>
> bwm-ng will help you to see whats going on.
>
>
>
>
>
>
>
>
>
> On Wed, Aug 13, 2014 at 5:20 PM, Andre <andretodd at verizon.net> wrote:
>
>
>
> Hi, is there anything special with the network card to get 10,000 sessions
> in media bypass mode with FreeSwitch?  Will a Gig E be enough bandwidth?
>
> What would it look like if the network card couldn’t keep up and how can I
> verify the network card is the bottleneck?
> Thanks
> Andre
>
>
>
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>
> 
> 
>
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>
> ------------------------------
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
> 
> 
>
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>
> --
> Ken
>
>
>
> *http://www.FreeSWITCH.org
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>
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>
> 
> 
>
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