Robustness is divided into connectivity robustness and recovery robustness according to connectivity and recovery.Then we divide connectivity robustness into random-fault robustness and hostile-attacks robustness

and divide recovery robustness into node recovery robustness and edge recovery robustness according to type of network failure

besides we define the concepts of connectivity robustness and recovery robustness.Then these concepts are used to evaluate the degree of robustness of Bernoulli node model

and the conclusion is achieved that the hostile-attacks robustness of hierarchy structure is less robust than planar structure while the random-fault robustness is more robust than planar structure

and that the node recovery robustness of hierarchy structure is more robust than planar structure while edge recovery robustness is less robust than planar structure.