RED算法的带宽公平性研究

Research on bandwidth fairness of RED algorithm

通过对RED算法的分析,指出了RED算法在带宽公平性存在的问题,在此基础上,提出了使用BF-RED算法来解决问题。该算法根据落差权重(drop-weight)定义了高带宽流,通过增加控制高带宽流的最大值和参数来增大落差的可能性,理论上证明了BF-RED算法在各种网络环境联接中能很好地保证带宽的公平性。

The problem of bandwidth fairness of RED algorithm is pointed out after analyzing RED algo-rithm.According to this,BF-RED algorithm is put forword to solve the problem above mentioned.It de-fined the high band width stream according to drop-weight.The possibility of fall can be enlarged by con-trolling the maximum value and parameter of the high bandwidth stream.It had been proven in theoretical-ly that BF-RED algorithm can guarantee the fairness of the bandwidth well in each kind of network envi-ronment.