Using *RT for HA purposes was: [Asterisk-Users] Realtime MultipleAsterisk boxes, iaxusers

[tijmen van den brink]

I did some research about Asterisk and High Availability and some sort of
load balancing. The High Availability issue isnn't much of a problem. I did
it with heartbeat en realtime. But the load balancing issue is realy a
problem. You want a load balancer to make decisions based on call ID. The
call ID is stored in the SIP header (layer 7)  and for all I know there are
only a few load balancers that can make decisions based on this layer and
those load balancers are not SIP aware. So for now I don't think load
balancing with *servers could be easily achieved.

On 1/4/06, Kevin P. Fleming <kpfleming at digium.com> wrote:
>
> Asterisk wrote:
>
> > In my case I would be using DNS round robin.  So a UA would only be
> > registering to one * server at a time.  So wouldn't in fact be an
> > active/passive?
>
> No. You have said that you want the _other_ servers to be aware of that
> phone's registration and be able to deliver calls to it directly. That
> will not work.
>
> If you want the other servers to send calls to that phone through the
> server it registered with, then yes, that can easily be done.
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Tijmen van den Brink
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