【摘要】 要求高质量服务的网络应用越来越普遍,单向延时作为衡量网络服务质量的一个主要指标,其测量显得尤为重要。该文给出了在不依赖于外部时间同步源的情况下解决测量两端时钟同步误差和线上时间与机器时间误差的方法,使用过程形式化的协议开发模式ITU-T/ETSI,设计并实现了主动单向时延测量工具Ting。更多还原

【Abstract】 Now,network applications demanding high quality become more and more popular,and one-way delay,as a main criterion of weighting network QoS,measuring it is needed.This paper solves two critical problems ,clock synchro-nization error and the error between wire-time and host-time ,in case of no outer synchronization source.And then with a protocol developing pattern of process formalization,ITU-T/ESTI ,it designs and implements an active one-way delay measurement tool Ting.更多还原