计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (35): 125-128.DOI: 10.3778/j.issn.1002-8331.2008.35.038

• 网络、通信、安全 • 上一篇    下一篇

改进的网络链路带宽测量方法

李祖鹏,殷肖川,余侃民   

  1. 空军工程大学 电讯工程学院,西安 710077
  • 收稿日期:2008-05-08 修回日期:2008-09-16 出版日期:2008-12-11 发布日期:2008-12-11
  • 通讯作者: 李祖鹏

Improved network link level bandwidth measurement method

LI Zu-peng,YIN Xiao-chuan,YU Kan-min   

  1. Institute of Telecommunication Engineering,Air Force Engineering University,Xi’an 710077,China
  • Received:2008-05-08 Revised:2008-09-16 Online:2008-12-11 Published:2008-12-11
  • Contact: LI Zu-peng

摘要: 分析了利用ICMP报文测量分组RTT时延与测量分组大小的线性关系进行非对称链路带宽测量的Asy_pathchar算法,针对该测量算法存在的缺陷,提出了一种改进的非对称链路带宽测量算法Asy_pro。网络仿真实验结果证明,Asy_pro算法在带宽测量耗时、网络带宽占用和抗干扰性等方面都有较大改善,有效地提高了测量算法的鲁棒性和实用性。

关键词: 链路带宽测量, 非对称链路, 网络仿真, 测量报文对

Abstract: Asy_pathchar is an asymmetric link bandwidth measurement algorithm based on calculating the relationship between the RTT latency and the measuring packet size. The problem of this algorithm is analyzed and a new algorithm named Asy_pro is put forward. Network simulation experiments’ result validates that the new algorithm has improved the overall performance on measuring time-consuming,network bandwidth-consuming and anti-jamming,all of which makes it a more robust and practicably algorithm.

Key words: link bandwidth measurement, asymmetric link, network simulation, measuring packet pair