Link Layer Topology Discovery (LLTD）协议是微软Windows Rally的

重要组成部分。该源码用C语言编写，很好地实现了LLTD协议。

虽然为日本CREAM嵌入式系统开发，但是经少量改动很容易移植到其他

嵌入式系统。-Link Layer Topology Discovery (LLTD) protocol is the Microsoft Windows Rally an important part. The use of C language source code, a good realization of the LLTD protocol. Although the development of embedded systems in Japan CREAM, but by a small number of changes to be easily ported to other embedded systems.