h1. High-availability through shared IP

High-availability is achieved by automatic shared IP address transfer in case if current node, which possesses shared IP address, goes offline. 

h3. Requirements

* node count: 2+
* IP addresses count = node count + 1
* nodes should be in one physical network

h3. Advantages

* shared IP address automatically transfers to one of other nodes if current node fails.
  Therefore, there will be no noticed denial of service, besides dropping a current call.

[[Отказоустойчивость через разделяемый IP|Русский перевод]]