The dispatcher module in OpenSER can load balance calls based on a hash of the
SIP call-id. Supposedly the latest version even supports failover. Ooooo, fancy.
Doug.
-----Original Message-----
From: tijmen van den brink [mailto:[EMAIL PROTECTED]
Sent: Wed 1/4/2006 2:30 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Cc:
Subject: Re: Using *RT for HA purposes was: [Asterisk-Users]
RealtimeMultipleAsterisk boxes, iaxusers
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 <[EMAIL PROTECTED]> 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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