端到端高速网络中的通用QoS解决方案

Universal QoS Solution for End-to-End High-Speed Network

提出并实现了一种针对端到端高速网络模型的简单有效可行的通用QoS解决方案模型。利用控制数据包容量和服务器端阻塞发送线程的方式限制低级别服务的带宽,从而保证高级别服务拥有更高带宽。根据概率原理设计了四种支持QoS的竞争调度算法,并进一步探索了用于提高带宽利用率的局部搜索和全局优化的手段。基于此方案实现了一个有效的、可扩展的QoS控制核心,并设计实现了一个应用实例。

An universal QoS solution model for the end-to-end high-speed network model has been presented and implemented, which is simple, effective and practicable. In this solution, with the data packet size controlled and the transmitting thread blocked at the server side, the bandwidth of the lower level service will be restricted, and higher bandwidth can be guaranteed for the higher level service. Four competition scheduling algorithms have been presented based on the probability principles, Then the local search and global optimization methods to increase the bandwidth utilization has been studied. Based on this solution, an effective and scalable QoS controlling kernel has been implemented, and then an application exampie has been implemented.