说明：  嵌入式系统网络协议栈的灵活性在应用上是一个重要指标。介绍嵌入式实操作系统VxWorks网络协议栈的MUX（Mutiplexer）接口及其使用方法。
(Embedded System Network Protocol Stack flexibility in the application is an important indicator. Embedded operating system it introduced VxWorks Network Protocol Stack MUX (Mutiplexer) Interface and their usage.)