层次型IPv4网络QoS算法

摘要

Hierarchical IPv4 networks put forward higher requirements for the quality of service. This paper analyzes the advantages, disadvantages and the application environment of the traditional QoS architecture based on business according to the second layer and the third layer of the OSI reference model. Then a QoS algorithm integrated differentiated service model with integrated service model is designed to enhance the QoS of a hierarchical network. The simulation results prove that the model can improve the network’s QoS in many aspects such as packet loss rate, transmission delay, delay jitter and network throughput.%网络服务质量 QoS 在层次型网络中要求更高.从 OSI 参考模型的第二层与第三层出发，分析了传统的QoS体系结构和三种QoS模型的工作原理、优缺点以及网络应用环境.设计了将IntServ与DiffServ模型相结合的互补算法来保证层次型网络的服务质量.仿真结果表明，此模型能够从传输延迟、丢包率、延时抖动和网络吞吐量等多个方面提升网络的QoS.