摘要： 随着组播技术的飞速发展，对Internet上的组播进行监测和对组播行为进行规范,变得越来越迫切。针对基于双向共享树的组播，提出了一个分层的主动组播监测的策略――HAMM（Hierarchical Active Multicast Monitor）, 并详细描述了它的特点和机制。

关键词: 组播, 分层, 主动监测, 双向共享树

Abstract: With the development of multicast, it is very necessary to monitor the multicast on the Internet and rule the multicast action . For the CBT based multicast, a hierarchical active multicast monitor mechanism——HAMM is provided. The characters and mechanism of HAMM are presented.

中图分类号: 

• TP393