[Kamailio-Users] Redundancy and fault-tolerance

[Luciano Afranllie]

On Mon, Mar 2, 2009 at 6:06 PM, Uriel Rozenbaum
<uriel.rozenbaum at gmail.com> wrote:
> Hi gentlemen,
>
> I'm trying to find a suitable topology to deploy on our SIP network.
>
> We started testing UCARP, but it seems it's not going to do for us.
> Our topology involves 2 servers with physical IPs on them and 2 floating IPs
> (to balance load 50% on each).
> The balancing is manual, we are going to point half our servers (measured in
> load) to one floating IP and so on.
> When a server fails, the other will handle the load assuming the other
> floating IP.
>
> We found an issue managing IPs, if we have to make Kamailio listen to a
> floating IP we have to set:
> listen=0.0.0.0
> and then record_route will just pass that IP on the record route headers,
> making destination servers not to respond.
>
> If we try to use record_route_preset() there, when server A fails, all
> responses come with the "wrong" IP on record_route when server B assumes A's
> IP.
>
> I'd like to know if some of you found a tidier solution and would like to
> share some topology and implementation tips. DNS SRV is also on our list,
> but maybe there is something out there that can help us with this.

I did not try this yet but linux-ha + DRBD seems to be a nice solution.

http://www.linux-ha.org/
http://www.drbd.org/
http://www.linux-ha.org/DRBD

Regards
Luciano