摘要
引用了一种应用于宽带网络环境的被动式环回时间(RTT)测量算法,用于对传输控制协议(TCP)的报文环回时间进行估计。该算法通过估计同一轮次报文的发送间隔来挑选相邻2个发送轮次之间的间隙,进而估算出TCP的报文环回时间,该方法的测量对象和测量结果更加具有网络管理意义,能够在不同的TCP行为模式中获得更多的测量采样并显著提高测量成功率。文中通过设计实验,设计程序分析所得的测量值与实际所得的RTT比较,验证该算法的有效性。
Passive round trip time ( RTT) estimate algorithm called PRE ( passive RTT estimate ) is proposed for the traffic monitor devices to estimate RTT of TCP connections in the broadband network. PRE algorithm can find out sending rounds of the monitored TCP flow according to the estimator of package arriving interval (PAI ) and estimates RTT by measuring the length of the sending round j which approximately equals to RTf. This method could obtain more measurement samples from different TCP activity models, thus observably improve the measurement success rate. In this paper, design an experiment and program analyzing the measured values and actu- al RTT values to verify the effectiveness of this algorithm.
出处
《计算机技术与发展》
2012年第9期83-86,共4页
Computer Technology and Development
基金
江苏省高校优势学科建设工程资助项目(yx002001)
关键词
传输控制协议
环回时间
被动测量
参数估计
transmission control protocol
round trip time
passive measurement
parameter estimation
作者简介
周波(1987-),男,江苏连云港人,硕士,研究方向为网络测量、神经网络;
张代远,教授,博士,研究方向为神经网络、人工智能等。