TCP友好的分布式可靠组播协议的设计与实现  

Design and implementation of TCP-friendly distributed reliable multicast protocol

作　　者：吕建宁[1] 郝红卫[1] 

机构地区：[1]北京科技大学计算机系,北京100083

出　　处：《计算机应用研究》2007年第11期264-267,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(60475003);北京科技大学科学研究基金资助项目

摘　　要：在源特定组播(SSM)的基础上,提出了一个分布式可靠组播传输协议——SDRMP(SSM-based distributed reliable multicastprotocol)。该协议基于划分域和分布式数据存储的思想,在域内由各节点分级保证与直连下游节点间的可靠报文传输,在域间由各个域的主节点分布式保存数据报文,并且发送者的发送速率根据各个域主节点的反馈报文进行调整,避免网络拥塞。仿真实验结果表明,SDRMP能有效地保证组播数据传输的可靠性,并具有较好的可扩展性和TCP友好性。Source specific multicast （SSM） can solve the access control problem, this transport mode can guarantee the security of muhicasting in a certain extent. A new distributed muhicast protocol for SSM named SDRMP was proposed. This protocol was based on the idea of domain and distributed data storage. The information taken by SSM join datagram determines which domain a receiver belongs to. Within the domain, a node guaranteed the reliability of the multicast transport with its direct lower node. Among the domain, the master node of every domain stored parts of the entire datagram. Simulation results show that SDRMP can guarantee the reliability of SSM muhicast transport and it is TCP-friendly because it can control the bandwidth occupancies of reliable muhicast data stream through the feedback datagram.

关 键 词：可靠组播 域 分布式 拥塞控制 传输控制协议友好性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]