You did not hear of han jiahua to the south of hill 200 cities , overgrow of 100 thousand dorp the wood 您没听说汉家华山以东两百州，百千村落长满了草木。
4.
Then the deficiencies of dfe ( dorp from end ) mechanism in a router ' s input queue are studied . after that , the thesis figure out that red ( random early detection ) active queue management mechanism can be used to prevent networks from congestion collapse 接着，文章重点分析了现有网络节点中所采用队尾丢弃策略的不足，认为只有采用随机早期探测（ randomearlydetection : red ）这种动态队列管理机制才能有效避免网络出现拥塞。
