本技术报告描述了使用协议层方法在分组网络上同步传输的预期定时性能指标。更具体地说，它解决了分组交换网络中分组延迟变化及其对定时（时间和/或频率）分布的影响的定量分析。定义和讨论多个分组定时度量以及提供数学基础的材料。

This Technical Report addresses metrics characterizing expected timing performance for synchronization transport over packet networks using protocol layer methods. More specifically, it addresses the quantitative analysis of packet delay variation and its effect on the distribution of timing (time and/or frequency) in a packet-switched network. Multiple packet timing metrics are defined and discussed along with material providing a mathematical foundation.