1. A computer implemented method, comprising: identifying, using a processor, a maximum of determined minimum probability of failure values for at least one path between one or more pairs of network nodes for a first network layer; identifying, using a processor, a maximum of determined minimum probability of failure values for at least one path between one or more pairs of nodes for each of the one or more secondary network layers; and outputting, via a user interface, one or more maximum of the determined minimum probability of failure values for one or more network layers for one or more pairs of network nodes of the modeled network.