摘要: 针对早期随机检测(RED)算法的wq等参数设置对网络变化敏感的问题,提出一种去掉低通滤波器,引入freeze_time参数的改进算法,并在“大时滞负载变化”和“TCP加UDP混合流网络”这2种情景下进行仿真验证。实验结果表明,在大范围动态网络中,RED改进算法能获得更高的吞吐量和更低的网络时延,具有较好的队列控制性和健壮性。
关键词:
RED改进算法,
大时滞,
负载变化,
混合流
Abstract: In dynamic networks Random Early Detection(RED) algorithm is sensitive to parameters, as wq etc. A Modified RED(MRED) algorithm is proposed, which discards low-pass filter and introduces a parameter freeze_time. This algorithm is simulated in two scenarios: “large delay and changing load”, “mixture flows of TCP and UDP”. Experimental results show that in dynamic networks MRED algorithm achieves higher throughput and lower end-to-end delay, it can control the instantaneous queue better, and shows good robustness.
Key words:
Modified RED(MRED) algorithm,
large delay,
load changing,
mixture flows
中图分类号:
范纪松;武欣嵘;刘 杰;刘 朝. 基于采样周期的RED改进算法[J]. 计算机工程, 2009, 35(18): 97-99.
FAN Ji-song; WU Xin-rong; LIU Jie; LIU Chao. Modified RED Algorithm Based on Sampling Period[J]. Computer Engineering, 2009, 35(18): 97-99.