一种基于内容的双向共享组播路由协议

针对组播协议在大规模分布式交互系统应用中面临的可扩展性问题,提出一种基于内容的双向共享组播路由协议CBSMRP(content-based bi-directional shared multicast routing protocol).该协议结合运用了主动路由思想和基于内容的发布-订购模式,在基于CBT(core-based tree)结构的双向共享组播树中,根据数据包的内容实现主动路由和双向过滤,不仅解决了组播地址的维护和分配等问题,而且能够有效地减轻系统的网络负载.仿真实验及实际应用表明,该协议具有较好的扩展性,能够满足大规模分布式交互系统的网络通信要求.

Content-Based Bi-Directional Shared Multicast Routing Protocol

In order to improve the scalability of multicast protocol in large-scale distributed interactive systems, a content-based bi-directional shared multicast routing protocol is presented, which is called CBSMRP (content-based bi-directional shared multicast routing protocol). Combined with active routing methods and content-based publish/subscribe pattern, this new protocol supports active routing and bi-directional filtering according to the content of packages in a bi-directional shared multicast tree based on CBT (core-based tree) structure, which cannot only solve the problems in the allocation and maintenance of multicast addresses, but also efficiently reduce the network load. Experimental results and application show that the protocol is scalable enough to meet network communication requirements of large-scale distributed interactive systems.