Through calculating the average queue size, Random Early Detection (RED) algorithm can drop packets with relevant probability, so congestion resulted from TCP flows can be avoided.
随机早检测算法通过计算TCP流的平均队列长度，进行适当的概率丢弃分组，从而有效地避免了由TCP流导致的网络拥塞。
It has the following advantages: (1) RED losses packets when the average queue size exceeds the preset threshold that can control the average queue size efficiently and also confine the mean delay.
它具有下述优点：(1)RED在平均队长超过了事先设定的阈值后就丢包，有效地控制了平均队长，限制了平均时延的大小。
When choosing values, you need to determine the average size and average number of messages that will be on the queue.
选择值时，您需要确定队列上的平均消息大小以及队列上的平均消息数量。
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