How stable are large superpeer networks against attack?

In this paper, we analyze the stability of large scale superpeer networks against attack. Two different kinds of attacks namely deterministic and degree dependent attack have been introduced. We model the superpeer networks with the help of bimodal degree distribution and different attacks with the help of graph dynamics. It is interesting to observe from both theoretical and simulation results that peer degree plays the key role for maintaining stability of the superpeer networks in face of these two attacks.