The simulation approach of inter-dependent networks in SFINA is the following: Each network is assumed an autonomous entity managed by a SFINA agent. This is often the case in real-world as system operators have full administrative priviledges over their network, however, interactions with other networks is either mediated or follows rules that are defined by protocols, standards and domain conventions. For instance, the power networks of two neighboring countries are independently regulated and operated, nevertheless, power exchanges can be introduced in the context of an energy market. SFINA models these the inter-dependencies by introducing special directed weighted inter-links that connect nodes in different networks. These inter-links can distribute flows from one network to another. These flows can become sources of risks and vulnerabilties if not designed and controled properly. But they can also play the role of safety pillars in case of emergencies by orchestrating intelligent and synergetic exchange of flows that benefit both networks. SFINA provides a modeling, prototyping and evaluation platform for building such synergies to improve the reliability of inter-dependent networks.