【摘要】 研究质量保证型服务和分层应用级组播的性能界值是很有意义的新课题。基于计算机网络的建模理论——网络演算(Network Calculus),研究了质量保证型服务单网络节点和多网络节点级联系统的性能界值;接着提出了服务隧道的概念,并应用服务隧道对分层应用级组播进行了QoS优化;最后应用质量保证型服务的性能界值进行了系统性能评价。更多还原

【Abstract】 It is a significant and brand-new topic for the research of Guaranteed Service bound and Hierarchical Application Level Multicast. The performance bound of Guaranteed Service, including single network node and multiple network elements concatenation, based on Network Calculus is researched. Then the conception of Service Tunnel is put forward and applied it to optimize the Quality of Service of Hierarchical Application Level Multicast. Finally the system performance using the results of performance bound is evaluated.更多还原