[Serusers] SER+Asterisk on high loads

[Vitaly Nikolaev]

In this case Asterisk will be bottle neck of whole system.. 50-100 calls
because of g729

But why do you need SER in this case? that gonna be extremely unscallable
system (not because of SER but because of asterisk). You can use simple
asterisk to get same functionality.

In my system, SER is registrar and NAT traversal (you need it to do SIP-SIP
calls). Then I have b2bua to do CDR and digit manipulation and then it goes
to termination carrier

Asterisk as b2bua is kind of expensive in my opinion. Not so stable and take
a lot of resources. Whenever I send call thru Asterisk I notice that overall
quality go down. May be it just because I do not like asterisk :)


If you in your setup will do same as in mine but instead of B2BUA use
Asterisk, then it will be scalable quite nice by just increasing amount of
asterisk servers


-----Original Message-----
From: Mik Cheez [mailto:michael_bulk at wildgate.com] 
Sent: Friday, February 25, 2005 11:55 AM
To: Vitaly Nikolaev; serusers at lists.iptel.org
Subject: Re: [Serusers] SER+Asterisk on high loads

How about the following scenario:

One box acting as a proxy to a PSTN.  Asterisk is handed the initial 
request (port 5060) in order to do some modifying of the packet 
(callID), and to keep a stateful connection for CDR's.  Asterisk passes 
it to SER (port 5061 on the same box) which uses its logic to route the 
call to one of several PSTN's.  All of this is done in g729.

Why do it this way?

SER cannot modify the callID without having issues.
I don't trust SER to do the CDR, and logging on the endpoint is very 
difficult compared to Asterisk.

Any idea what the load maximum would be with that same P4 3.X/Xeon?

Best regards

Vitaly Nikolaev wrote:

>SER + Astrersik can handle UNLIMITED simultaneous callas, but for that you
>have to have unlimited servers working as a cluster :)
>
>I would never recommend to have asterisk and ser on one machnine, asterisk
>that will work on separate machine with P4 3.X/Xeon terminationg calls to
>PSTN can handle up to 100 calls easily. 
>
>
>SER with rtpproxy on one server can handle REGISTRATIONS from 10000
clients.
>Even if they will do it every 30 sec (depend of course how u gonna
>authenticate them)
>
>
>RTPPROXY can handle much more then 100 calls (what codec btw ?) plus you
can
>distribute SER to different machines to work in a cluster OR you can use
>mediaproxy or nathelper in same cluster mode.
>
>
>Btw, I believe you not gonna let all calls trough asterisk ? asterisk is
>only for termination to PSTN ? otherwise forget what I wrote :)
>
>
>On 2/25/2005, "alexey at home.kovyrin.net" <alexey at home.kovyrin.net> wrote:
>
>  
>
>>Hello, All!
>>
>>There is some questions about subj.
>>With what loads SER+Asterisk can be used? I need to know, what number of
>>simultaneous registrations and simultaneous calls can handle this
>>conplex? It'll be very good, if someone can say his success story about
>>SER+Asterisk.
>>
>>Now, we're planning 1000-10000 clients... can SER handle this number of
>>registrations? And can SER+Asterisk (assume that almost all users are
>>using NAT) can handle calls of 0.1-1% of above clients base?
>>
>>Great thanks to all for answers.
>>
>>--
>>/Scoundrel
>>
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>>
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