1、发现它的邻居节点，并知道其网络地址。

2、测量到各邻居节点的延时或开销。

3、构造一个分组，分组中包含所有它刚刚知道的信息。

4、将这个分组发送给所有其他的路由器。

5、计算出到每个其他路由器的最短距离。

-1, found in its neighbor nodes, and to know its network address. 2, measured to the neighbor node latency or overhead. 3, constructs a packet, packet contains all the information it had just know. 4, this packet sent to all other routers. 5, calculated to each other the minimum distance between routers.