摘要
针对现有内容发布/订阅系统事件路由算法不支持有环图下订阅覆盖的问题,采用目的地动态更新与划分、逆向最短路径转发等策略,提出一种有环图下支持订阅覆盖的路由算法。分析表明,该算法完全满足有环图拓扑应用的需求,可确保订阅者收到匹配订阅的事件,避免事件转发形成环路。
For the exist content-based Publish/Subscribe(P/S) systems, general peer-to-peer topology can not support subscription covering, on the base of absorbing their design ideas, with reverse path forwarding technique and dynamic receiver update and partition strategy, a new route algorithm for content-based P/S system which supports general cyclic topology and subscription covering is proposed. Analysis shows that the algorithm can completely meet the requirement of P/S system of cyclic topology, the new route algorithm also guarantees that all the subscribers have subscription matched the event will receive the event without routing loops.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第16期122-124,共3页
Computer Engineering
基金
现代通信国家重点实验室基金资助项目(9140c110206070c11)
杭州电子科技大学校科学研究基金资助项目(KYF071506005)
关键词
发布/订阅
订阅覆盖
有环图
内容路由
Publish/Subscribe(P/S)
subscription covering
cyclic topology
content route