In this article,SNMP and ICMP protocols are introduced first. Then we describe how to implement the algorithm of automatic topology discovery in detail,and the issues that must be noticed in the implementation of the algorithm are presented too.

• 论文首先简单介绍了SNMP和ICMP协议,然后详细描述了如何利用这两种协议来实现自动搜索算法,并提出了在算法中需要注意的问题。