Fault tolerance module based on events, now it is event driven.

Switch roles from floodlightdefault.properties.

Fault tolerance with primary-backup or distributed, without reconfiguration.
One time crashed the controller shall restart with all switches in slave mode.
This can be achieved from floodlight.properties file.

The second properties file, floodlighBackupNode.properties is for backup nodes, and swicthes shall be configures in slave mode.

Regards