[Asterisk-Users] Speaking of DS3s....

[Michael Shuler]

You can do what we did and setup 2 SER servers which are load balanced by a
Foundry ServerIron XL (you could use UltraMonkey for free if you prefer).
The 2 SER machines handle the REGISTER messages, NAT and final delivery to
the VoIP devices and to the media gateways.  The SER machines don't know
what to do with a call they only know to hand it over to Asterisk for
routing/CLASS features or whatever you want the call to do.  You then have a
separate set of Asterisk boxes that are nothing but media
gateways/transcoders that have the PRI cards in them.  We don't actually use
Asterisk as media gateways in our setup we use the Lucent TNTs but it
accomplishes the same thing but on a much larger scale.  As far as sharing
the common configs we use http://svn.asteriskdocs.org/res_data/ to read all
of our configs (sip.conf, extensions.conf, etc.) live from a MySQL database.
Just apply the patch and go.

So far we have seen no limit as to the scalability of this setup.  If the 2
SER servers get overloaded we just add another.  If the Asterisk routing
servers get overloaded we just add another.  IF we run out of PRI's we add
another TNT and more PRI's from our Plexus 9000 switch.  So the system in
theory has no real-world limits.

----------------------------------------

Michael Shuler, C.E.O.
BitWise Communications, Inc. (CLEC) And BitWise Systems, Inc. (ISP)
682 High Point Lane
East Peoria, IL 61611
Office: (217) 585-0357
Cell: (309) 657-6365
Fax: (309) 213-3500
E-Mail: mike at bwsys.net
Customer Service: (877) 976-0711 

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Matthew Boehm
> Sent: Thursday, November 18, 2004 3:57 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Speaking of DS3s....
> 
> 
> Scenario A:
> Lets say you had 10 Asterisk boxes, all 4U, 4 proc servers, 
> all with same
> *.conf, in a rack mount unit.
> You can get 1 OC3 connection for $5,000 a month.
> How can you split that OC3 among the 10 boxes and have load 
> balancing and
> auto-failover?
> 
> Scenario B:
>  Same setup as A, but this time, each of the 10 servers 
> services 1 paticular
> area code (NPA).
>  Lets say server #4 stops working. How do I auto-route an 
> incomming call
> destined for #4
>  to another machine? (I'm guessing dundi here but other 
> options welcome)
> 
> Thanks,
> Matthew
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>