High availability

With FortiVoice high availability (HA), you set up redundancy between two FortiVoice units in case of a system failure. FortiVoice HA uses an active-passive mode which means that you have a primary (active) unit and a secondary (passive) unit. These two units make up an HA group. The secondary unit is not used until a failure occurs on the primary unit and triggers the secondary unit to assume the responsibilities of the primary unit.

FortiVoice HA units use a heartbeat link to communicate. This heartbeat link lets the secondary unit know that the primary unit is up and running, and allows the primary unit to copy configuration and data information to the secondary unit whenever the primary configuration changes. If a failure occurs on the primary unit, the loss of the heartbeat triggers the secondary unit to take over as the primary and be a copy of that primary unit.

This section includes the following recipes:

• Planning high availability
• Configuring high availability on FortiVoice units
• Configuring service-based failover
• Synchronizing configuration and data in a FortiVoice HA group
• Installing licenses on a FortiVoice HA group
• Enabling high availability activity logging
• Displaying the high availability status
• Upgrading the firmware in an HA group