Synchronizing the configuration
The FGSP includes configuration synchronization, allowing you to make configuration changes once for all of the FortiGates in the cluster instead of requiring you to make redundant configuration changes on each FortiGate. Settings that identify the FortiGate to the network, for example, interface IP addresses and BGP neighbor settings, and are not synchronized so each FortiGate maintains its identity on the network. As well cluster-sync instances are not synchronized and must be configured separately on each FortiGate in the cluster.
By default configuration synchronization is disabled. You can use the following command to enable it.
config system ha
set standalone-config-sync enable