Unless you can guarantee that the system that is currently processing a call
will be the system that handles a transfer request from a phone, are the same,
then transfers will not work.
Round robin DNS won't work at all. Every time you send out a SIP message, your
going to be sending it to a different Asterisk box. For example, your initial
INVITE will go to asterisk server 1. Asterisk server 1 will then send back a
message requesting authorisation. Your phone does another lookup, and gets
Asterisk server 2 this time. The phone sends the new INVITE with the auth info
to Asterisk server 2. Asterisk server 2 will probably be ok with this, but when
it sends a TRYING back to the phone, depending on the phone you are using,
everything will fall in a heap on the floor. I know polycoms do. They get this
TRYING from an asterisk server they didn't send and they go 'huh?'.
I'm sure most other stuff will fail too. The Asterisk boxes share no state
information.
Doug.
-----Original Message-----
From: unplug [mailto:[EMAIL PROTECTED]
Sent: Fri 6/16/2006 9:41 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Cc:
Subject: [Asterisk-Users] asterisk load balance
Hi,
I am designing a asterisk load balancing model as follow. There are
3 asterisks connected to a single DB and a single server storing all
the configuration file and voicemail. Round Robin DNS will distribute
the request to asterisks.
DNS round robin ---+ asterisk1--------------------------+ DB and file
server
+---asterisk2-----------------------+
+---asterisk3-----------------------+
Does anyone has load balancing experience implemented in asterisk that
can share? Does my design work? Does any conflict will happen in my
design? Any comment?
Thanks!
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