针对这个不足提出一种改进的基于地址转发表的物理网络拓扑发现算法。
Aiming at this insufficiency, we propose a new physical Network topology discovery algorithm based on address forwarding table.
不需要地址转发表完整而解决了不同子网的结点之间连接关系的判定问题，使得结果更接近实际。
The algorithm gives a link relationship of two nodes which belong to different subnets without complete AFT, and the result is more similar to the fact.
在分析原有基于MAC地址转发表算法的基础上，提出一种新的基于生成树协议的拓扑发现算法。
Based on the analysis of the existing algorithm of MAC address forwarding table, it presents a kind of new physical topology discovery algorithm depended on spanning tree protocol.
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