摘要： 研究了一种通过测量时延值进而估算各段带宽的改进E-pathchar带宽模型,并给出了具体的测量与实现策略,时延测量中返回报文选用了大小固定、传输时延小的差错报文。最后对100Mbps的局域网内和不同网段的主机分别进行了测量,研究了最佳的测量区间和最佳的数据处理间隔,测量结果和Windows系统实测的数据接近。

关键词: E-pathchar估算模型, 带宽, 时延, 差错报文, 偏差处理

Abstract: This paper studies an improved E-pathchar bandwidth estimation model, which is calculated through delay.The kind of return packet of a port unreachable packet, which is fixation length and small transmit delay, is selected. At last, experiments are tested in 100Mbps local network and different networks, the results are closed to the Windows test data.

中图分类号: 

• TP393.02