Interconnection network is one of the major factors which determine the performance of a multiprocessor system. Therefore, it is imperative to have a model by which the efficiency of the interconnection network can be correctly evaluated. In this paper, we present a comprehensive model for evaluating crossbar networks, where the memory bandwidth and processor acceptance probability are primary measures considered. The proposed analytical model includes all important network control policies such as the bus arbitration and rejected request handling policies as well as home memory concept. Computer simulation validates the correctness. Our study also confirms that the home memory and dynamic bus arbitration policy improve the network performance.Zndex Terms-Analytical model, bus arbitration, crossbar network, home memory, interconnection network, memory bandwidth, processor acceptance probability, rejected request policy.