一、快速以太网100Base-TX的PMD测试意义在通常的应用环境下,以太网的数据差错不容易在应用中表现出来,而是被底层的差错控制机制自动校正。以太网传输质量的好与坏,至多是影响网络的效率,而在共享带宽的环境下,这种效率的变化是不容易被一般用户感知到的。但是在特定的场合,例 First, the fast Ethernet 100Base-TX PMD test significance In the usual application environment, Ethernet data errors are not easily demonstrated in the application, but by the underlying error control mechanism automatically correct. Ethernet transmission quality is good or bad, at best, affect the network efficiency, and in the shared bandwidth environment, this change in efficiency is not easy to be perceived by the average user. However, in specific cases, for example