This paper introduces architectures of two types optical packet switched metropolitan area networks and their media access control protocols. We have designed related network simulation systems. With these simulation...This paper introduces architectures of two types optical packet switched metropolitan area networks and their media access control protocols. We have designed related network simulation systems. With these simulation systems, the characteristics and performance of the two MANs can be achieved.展开更多
文摘This paper introduces architectures of two types optical packet switched metropolitan area networks and their media access control protocols. We have designed related network simulation systems. With these simulation systems, the characteristics and performance of the two MANs can be achieved.
文摘为了有效克服传统流量监测方法仅对数据包进行传输层以下协议进行分析而不能识别P2P(Peer-to-Peer)应用的问题,分析了远程网络监控(RMON:Remote Network Monitoring)、xFlow和探针等流量监控方法的特点及适用情况。并在城域网接入层、汇聚层和城域网(MAN:Metropolitan Area Network)出口3个层面部署探针进行流量监测和分析,获得了完整的流量分布模型。实验表明,通过探针方式网络流量进行分析是全面而有效的。
