This paper discusses a degree-constrained multicast model on scribe based on pastry, and proposes an AOI node joining algorithm for the corresponding ALM in heterogeneous networks, as well as a way to decline the number of non-DHT links.

• 在基于Pastry的Scribe多播模型上增加了度约束条件；并提出了相应的异构网络应用层的多播加入算法；最后给出了减少非-DHT连接数目的方法.