h1. Load-balancing through DNS round-robin

You can distribute load across several nodes using "DNS round-robin":http://ru.wikipedia.org/wiki/Round_robin_DNS.
Originating customers should be configured to a cluster domain name and should use DNS for each outgoing call. 

h3. Requirements:

* node count: 2+
* setup records in your DNS zone to spread load using *round-robin*
* specify domain name in connection form for your customers
* notify customers about usage of DNS lookup for each call
* IP address count in data center = node count 

h3. Limitations

* not every equipment supports DNS lookup.
  Therefore, you won't spread load for those of customers, which doesn't support this feature.

[[Распределение нагрузки через DNS round-robin|Русский перевод]]