TSN中时间感知整形器测试方案设计及实现

时间敏感网络（TSN）是支持工业互联网的以太网新标准。TSN通过引入时间感知整形器（TAS）来精确控制不同优先级别的数据帧转发，使以太网能够支持低时延、低时间抖动的确定性服务。对TSN的目的、发展现状以及主要标准进行了叙述，结合TAS的基本原理和工作流程，提出了TAS的测试方案，将其划分为几个独立的部分，采用观察测试流量通过每个部分后特征变化的测试方法，并完成了测试设计和测试验证，测试结果证明了测试方案的有效性。

Test Scheme for Time Aware Shaper in TSN

Time sensitive networking (TSN) is a new Ethernet standard that supports the industrial Internet.TSN introduces Time aware shaper (TAS) to precisely control the forwarding of data frames of different priorities,enabling Ethernet to support deterministic services with low latency and low jitter.The purpose,development status,and main standards of TSN are introduced.Combining the principle and working process of TAS,the test scheme for TAS is proposed,which is divided into several independent parts.The test method of observing the characteristic changes after the test traffic passes through each part was adopted,and the test design and test verification were completed.The test results prove the effectiveness of the test scheme.