The paper focuses on the design of future complex networks, in the perspective of smart cities, where many sensors and data flows are expected to arise. The research proposes the use of multiple intelligent agents to monitor critical features of the communication network, including hardware and applications/software components, in a tree architecture, with a top-supervisor agent, also used as human-machine interface for the Fault Management System operators. A study case is also included, along with recommendations for the best artificial intelligence components to be used in such an architecture.