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<TITLE>Re: [Freeswitch-users] Network Card</TITLE>
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<FONT FACE="Monaco, Courier New"><SPAN STYLE='font-size:11pt'>1000 CPS the NIC is not the bottle neck this is actually relatively small amount of TCP/UDP traffic for just the SIP message.<BR>
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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... <BR>
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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..<BR>
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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. <BR>
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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.<BR>
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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...<BR>
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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 $2000+ in revenue and cranky customers while you repair/replace the now dead machine.<BR>
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Lets face it, you can purchase a colo a nice machine for say 200 to 300$/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.<BR>
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On 8/14/14 11:56 AM, "Russell Treleaven" <<a href="rtreleaven@bunnykick.ca">rtreleaven@bunnykick.ca</a>> wrote:<BR>
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</SPAN></FONT><BLOCKQUOTE><SPAN STYLE='font-size:11pt'><FONT FACE="Calibri, Verdana, Helvetica, Arial">1000 calls per second... no idea but I really doubt the network interface is going to be the bottleneck.<BR>
Not sure why you make a distinction here between sessions and connected.<BR>
To be clear you mean 5000 bridge calls correct?<BR>
Since media is not an issue I think you can just start testing with sipp and bwm-ng to see what is what.<BR>
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1000 calls per second is a very big number.<BR>
Let us know how you make out.<BR>
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Sincerely,<BR>
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Russell Treleaven<BR>
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On Wed, Aug 13, 2014 at 5:40 PM, Andre <<a href="andretodd@verizon.net">andretodd@verizon.net</a>> wrote:<BR>
</FONT></SPAN><BLOCKQUOTE><SPAN STYLE='font-size:11pt'><FONT FACE="Monaco, Courier New">1000 calls per second and 10000 sessions with 4000 connected. What would be recommend?<BR>
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<B>From:</B> <a href="freeswitch-users-bounces@lists.freeswitch.org">freeswitch-users-bounces@lists.freeswitch.org</a> [<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org">mailto:freeswitch-users-bounces@lists.freeswitch.org</a>] <B>On Behalf Of </B>Russell Treleaven<BR>
<B>Sent:</B> Wednesday, August 13, 2014 5:25 PM<BR>
<B>To:</B> FreeSWITCH Users Help<BR>
<B>Subject:</B> Re: [Freeswitch-users] Network Card<BR>
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If the media is bypassing you then you only need bandwidth for the signalling.<BR>
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Depends primarily on the calls per second.<BR>
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bwm-ng will help you to see whats going on.<BR>
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On Wed, Aug 13, 2014 at 5:20 PM, Andre <<a href="andretodd@verizon.net">andretodd@verizon.net</a>> wrote:<BR>
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</FONT></SPAN><BLOCKQUOTE><SPAN STYLE='font-size:11pt'><FONT FACE="Monaco, Courier New">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?<BR>
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What would it look like if the network card couldn’t keep up and how can I verify the network card is the bottleneck?<BR>
Thanks<BR>
Andre<BR>
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