[Asterisk-Users] asterisk load balancing setup

[unplug]

Hi all,
  I would like to setup a redundancy/load balancing of an asterisk
system as follow.

Internet -------- DNS ----  asterisk1  ---------- mysql DB
                       +-----------asterisk2 --------------+

In such case, all user account, dial plan and other necessary
information is stored in a single DB or a cluster of DB.  DNS with
round robin enabled to distribute the traffic coming from outside.  I
am not sure it is the right way to provide load balance of asterisk.
Anyone can give me some advices?