Systems and methods of determining network configurations for a modular computing entity are disclosed. For instance, a desired functionality to be implemented by a modular computing entity can be identified. Capacity data associated with one or more candidate network devices that are available to join a network associated with the modular computing entity is received. A network combination to implement the desired functionality can be determined based at least in part on the received capacity data. The network combination can include at least a subset of the candidate network devices.