基于动态部分缓存共享机制的改进RED算法

为了解决Internet中网络业务流量不断增长而引发的网络拥塞问题,采用部分缓存共享机制对随机早期检测算法进行改进。根据网络节点缓存资源实时使用情况模糊动态调整丢弃阈值,结合采用比例调度算法,提高了网络共享资源的使用效率,保证了不同网络业务的服务质量。仿真试验结果表明,改进RED算法可以提高网络节点的成功转发率,改善关键业务的延迟指标,具有更好的拥塞控制性能。

Modified RED algorithm based on dynamic par tial buffer sharing mechanism

With the increase of network operation flux in internet,network congestion problem was getting more serious.With dynamic partical buffer sharing(DPBS) mechanism,the performance of random early detection(RED) algorithm can be improved.The modified RED algorithm uses proportional scheduling algorithm and adjusts the dropping threshold fuzzily according to the real information on the buffer use of network node.It can improve the use efficiency of the network sharing resource and ensure the QoS of different network operation.The stimulation results show that the modified RED algorithm can improve the forwarding ratio of the network node and the delay index of key operation,and has better performance in congestion control compared with RED algorithm.