[asterisk-users] Redundancy / Failover

[Edgar Guadamuz]

Hello... I have been studying how to get Asterisk redundancy with
Linux-HA. You can have 2 asterisk boxes, then install the linux-HA
(Heartbeat) software and if one of the asterisk servers fails the
other will take his IP so the clients registered on that server can
re-register in the other. The redundancy can be hot stand by, in this
case, both servers attend a part of the users.
Also it's possible to have differents trunks connected in the servers
and configure them in order to use the other's trunks in case of all
lines busy. And of course, is possible configure the servers to have
the same dial plan as there were only one server.
I have been also studyng how to use Linux Virtual Server in order to
get load balancing across a cluster of asterisk servers.




On 7/18/07, Norman Franke <Norman at myasd.com> wrote:
> I've been evaluating Asterisk for a while, and things seem to be
> going very well. The issue of redundancy and automatic fail-over is
> now on my mind. I searched the archives and googled for solutions,
> but didn't really come up with much.
>
> We'll be using queues (modified), which precludes some of the
> standard redundancy solutions, since the queue needs to know all the
> agents and calls to effectively decide what to do. (Correct me if I'm
> wrong as to distributing queues.)
>
> As far as I can tell, I need to be able to fail over to a backup
> server. What's the best way to go about this? Obviously one can just
> have the clients re-connect to the new server, but with 50 machines,
> that can be a major pain. Both could have the same network, and just
> swap network cables and re-login. One could log into both and the
> second wouldn't send calls to the agent unless it got calls from the
> main switch in the event of failure. I'm sure there other solutions.
>
> I've come across other products like Ranch Networks (their web site
> is rather uninformative, although it seems promising) and Redfone's
> foneBRIDGE (which seems it may help.)
>
> I'll be using Sangoma cards on the Asterisk box, if that matters.
>
> Does anyone have experience they'd like to share on effective ways to
> do this?
>
> -Norman
>
>
>
>
>
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