<div dir="ltr">Pawel at halo-kwadarat, has also done an analysis for SMG on 16E1, read his analysis and thorough testing methodology at<br><a href="http://wookieboo.halokwadrat.pl/lang-en/component/content/article/17-ss7boxsmg/29-ss7-smg-performance">http://wookieboo.halokwadrat.pl/lang-en/component/content/article/17-ss7boxsmg/29-ss7-smg-performance</a><br>
<br>Although this is SMG specific, it does show workable solutions of 16E1 per server. I'm trying to get some time to do a<br>similar analysis on libss7 and chanss7 and compare them to SMG, maybe sometime this weekend if it all falls into place.<br>
<br>-wasim<br><br><div class="gmail_quote">On Thu, Jul 17, 2008 at 1:18 PM, Krzysztof Drewicz <<a href="mailto:krzysztofdrewicz@gmail.com">krzysztofdrewicz@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
2008/7/16 Patrick <<a href="mailto:asterisk-list@puzzled.xs4all.nl">asterisk-list@puzzled.xs4all.nl</a>>:<br>
> Antoine,<br>
><br>
My 0.04 USD:<br>
<div class="Ih2E3d"><br>
>> There many unknowns to me:<br>
>> For example I don't know if I can put 16 E1s per server?<br>
><br>
> Not sure. I would not stick that many E1s on a single box since Asterisk<br>
> can deadlock.<br>
<br>
</div>I've got my first box with 4 x TE410P. It Works. But it was only for<br>
multiplication of interface E1 connections, from 14 PABXes to 2 lines<br>
from carrier side. And it was very low traffic. Now i whould not risk<br>
such a set-up.<br>
Said that, we should also be aware of redundacy in SS7 it self and<br>
implementation of that redundacy in asterisk. So, if it's not a space<br>
issue i whould put 1 card like TE410P with 4 E1 per 1 server, use some<br>
good platform like x306 from IBM (now it's x3250 i think), put some<br>
servers in rack cabinet and duplicate even ethernet links by 2 LAN<br>
switches...<br>
<div class="Ih2E3d"><br>
> In this case it would bring down 480 channels. Are you willing to run that<br>
> risk?<br>
<br>
</div>That's the point, how many of channels you (your client) wishes to<br>
risk at one time? Maybe there will be upgrade issue, where putting<br>
down 120 channels will be fine, replacing server, and bringing up ?<br>
<br>
Maybe there's an option of some better aproach? Like redfone and TDMoE<br>
? Anyone used it with SS7? if you could put 1/2/4 connections to one<br>
redfone-like box, then use it by only a few servers (not one server<br>
per 30/60/120 channels).<br>
<div class="Ih2E3d"><br>
> I would offload the prepaid application to another set of boxes for<br>
> scalability and redundancy.<br>
<br>
</div>Yes, i whould even consider splitting voice processing from SQL, so<br>
putting database on diffrent server, or even using some redundant<br>
database with loadsharing.<br>
<br>
With setup starting at 480 channels it's good to plan how system will<br>
grow, and if at some point there whould not be problem like "only<br>
100Mbit ethernet" when 1 Gb is needed...<br>
<font color="#888888"><br>
--<br>
Krzysztof Drewicz<br>
+48 504 17 55 77<br>
</font><div><div></div><div class="Wj3C7c"><br>
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