Analysis of accuracy of packet loss estimation algorithm based on passive measurement

Abstract

Estimating the packet loss rate in the border network helps network managers better understand network performance and achieve effective estimation of network performance. Taking the packet loss rate as an entry point, the research work analyzes the feasibility of the existing packet loss estimation algorithm applied to the network boundary, and conducts an accuracy-oriented comparative analysis based on a standard data set. On this basis, the author locates the cause of the error in the existing packet loss estimation algorithm and proposes a targeted solution. The test results show that the accuracy of the improved packet loss estimation algorithm has been significantly improved. Finally, the improved packet loss estimation algorithm is applied to the four campus networks of the CERNET and CERNET2 Nanjing master nodes, and the IPv4 and IPv6 packet loss rates of these four campus networks are measured respectively. The results show the packet loss rate in the IPv6 networks is lower than the packet loss rate in IPv4 networks.