[Freeswitch-users] Network Card

Anthony Minessale anthony.minessale at gmail.com
Fri Aug 15 03:58:07 MSD 2014


Ok it isn't obscene.   Thread closed.
On Aug 14, 2014 7:27 PM, "aademattia at comcast.net" <aademattia at comcast.net>
wrote:

> Why is 1000 cps obscene?
> Denovo lab uses nokia stack and we get over 1k cps in a server that cost
> 2k.
>
>
>
> Sent from my HTC
>
> ----- Reply message -----
> From: "Anthony Minessale" <anthony.minessale at gmail.com>
> To: "Freeswitch-users" <freeswitch-users at lists.freeswitch.org>
> Subject: [Freeswitch-users] Network Card
> Date: Thu, Aug 14, 2014 6:16 PM
>
> 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
>>
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www..freeswitchsolutions.com <http://www.freeswitchsolutions.com>
>>
>> 
>> 
>>
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>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>>
>> ------------------------------
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
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>>
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>>
>> --
>> Ken
>>
>>
>>
>> *http://www.FreeSWITCH.org
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>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www..freeswitchsolutions.com <http://www.freeswitchsolutions.com>
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
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>>
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>>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
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> http://wiki.freeswitch.org
> http://www.cluecon.com
>
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