In this paper the application of Fast Ethernet MAC Controller AX88196 to network switch remote management system is described, and the design of hardware and software about the system are introduced. 本文以AX88196在网络交换机中的应用为例,介绍了利用MAC芯片来实现通过网口对网络交换机进行远程管理系统。及其软硬件的设计原理。