ATM交换机信元调度的设计与实现  

Designment and Implementation of ATM Switching Cell Scheduling

作　　者：廖红云 罗明阳 王建兵 

机构地区：[1]重庆金美通信有限责任公司,重庆400030

出　　处：《微处理机》2010年第5期114-118,共5页Microprocessors

摘　　要：ATM交换机由于执行了严格的流量管理和拥塞控制,为用户提供良好的QoS保证,在骨干网和军事通信网中得到了广泛应用。但如何解决在复杂网络环境下多板卡、多接口、多用户之间数据的正常交换和时延控制,是ATM交换机设计面临的重要问题。该文对ATM交换机核心卡输入和输出两个流向的信元调度进行了分析和研究,从公平分片轮询和带优先级的逐信元轮询策略等方面,提出了一种具有一定通用性的多线卡多端口信元调度策略的设计和实现方案,在IP交换机和路由器中同样适用。ATM Switching is used widely in the trunk network and military communication network because of whose strict traffic management and congestion control,which can offer good Quality of Service.But the serious problem of ATM switching designment is how to resolve the data switching and delay control between cards,interfaces and devices in the complicate network.On the base of analyzing and researching the cell scheduling on the stream in the ATM switching core card,a common designment and Implementation of cell scheduling between cards and interfaces from CRRS and CRRP.The solution is the same with IP switch and Router.

关 键 词：服务质量 公平分片轮询调度 带优先级的逐信元轮询 分类随机早期探测机制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]