Robustness of large networks

The increasing importance of large networks in our "linked" world necessitates to enhance out understanding of their most characteristic behaviors. We discuss how to describe large networks and argue that a stochastic approach is most appropriate. The "robustness" of large networks is not uniquely defined. The robustness is approached from two angles: we are studying the influence of the topology and of the link weight structure on the network\´s robustness.