Figure 3

The average number of software variants shared during 100 iterations of each experiment for each network topology. This is a measure of the network overhead, which we wish to minimize. Software is shared when a neighboring node requests a variant in response to an attack. Network topologies are ordered from left to right by increasing number of edges. The data shown is for 1024 node networks. The caveman network is not shown because it dwarfs the other columns. The caveman network shares about 250,000 software variants.