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针对RED(RandomEarlyDetection)队列管理算法不能实现业务流之间带宽公平共享,提出了基于测量的主动队列管理算法(MBAQM)。这种算法采用基于测量和预测的方式估计不同业务流的输入速率,并根据队列大小计算出新到来包的丢弃概率,在维持较少的流状态情况下,通过队列的丢弃机制,实现了不同速率输入业务流之间的链路公平共享。通过对参数的调整还可以实现优先带宽分配机制。该文从理论上说明了该算法能够保证各业务流近似公平地共享输出链路带宽,同时给出相应的仿真结果。
Aiming at RED (RandomEarlyDetection) queue management algorithm can not achieve the fair share of bandwidth between the service streams, a measurement-based active queue management algorithm (MBAQM) is proposed. This algorithm estimates the input rate of different traffic flows based on measurement and prediction, and calculates the discard probability of new incoming packets according to the queue size. In the case of less traffic, the queue drop mechanism achieves different The rate of incoming links between business flows is shared fairly. By adjusting the parameters can also be achieved priority bandwidth allocation mechanism. This paper theoretically shows that the algorithm can ensure that the bandwidth of the output link is approximately fair to each service flow and gives the corresponding simulation results.