[keycloak-user] keycloak 2.5.4 - Multi Data Center with TCP

Hello, We want to implement Multi datacenter feature with keycloak 2.5.4. We already have two clusters with TCP stacks. We need the relay the backups between the two, I've tried to put a back up mais the property 'site' is not recognized. Anyone has a sample of configuration in TCP for multi data center please ?