Abstract：By analyzing the multi-layer architecture peer-to-peer networks based on region protocol, this paper studied the stress and stretch with the model which has two intuitive metrics of goodness defined to evaluate the quality of the application layer multicast data paths. In addition, functions of the network or region size parameter k and N, and relationship between the stress and the stretch metrics, as well as quantifies both the average and maximum values of the two metrics were studies and computing formula was given. At the same time, the idea was put forward about the tradeoffs between the stress and stretch metric for randomly distributed network or region size on realistic topologies. The final the results show: the stretch does not depend on the network or region size, while the maximum stress increases with increasing network or region size, and decreasing stretch in this protocol model leads to increased stress and vice versa. In the data paths about protocol model, stretch between any pair of members is O(log N) and stress at the members is O(1).
乐光学. 基于Region多层结构P2P计算网络应用层多播协议分析[J]. 计算机应用, 2005, 25(06): 1233-1236.
YUE Guang-xue. Analysis of the application layer multicast protocol for multi-layer architecture P2P networks based on region. Journal of Computer Applications, 2005, 25(06): 1233-1236.
2005, Vol. 25 
