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RMTP(reliable multicast transport protocol)是一种通过修复服务器(repair server)本地恢复来提供可靠性的组播协议.对改进的RMTP协议的时延性能进行建模分析.推导了数据包自发送主机发出到成功地被一个随机选择的接收主机接收之间的平均时延公式.分析表明,随着丢失率的增长,RMTP的时延性能恶化点将迅速下降;随着每个修复服务器下连接尾链路数量的增加,RMTP的时延性能恶化点也将下降.但是,随着尾链路总数量的增加而保持每个修复服务器连接的尾链路数量不变,RMTP的时延性能的变化很小.仿真结果较好地验证了分析的有效性.
The reliable multicast transport protocol (RMTP) is a multicast protocol that provides reliability through local recovery by a repair server. Modeling and analyzing the delay performance of the improved RMTP protocol, it is deduced that packets sent from the sending host To an average delay formula that was successfully received by a randomly selected receiver.Analysis shows that as the loss rate increases, the delay performance degradation point of RMTP decreases rapidly; as each repair server connects the tail chain However, as the total number of trailing links increases, the number of trailing links per repair server remains the same, and the delay performance of RMTP changes very much The simulation results better verify the validity of the analysis.