Network bottleneck bandwidth measurement method based on active measurement and packet gap model

Abstract

The invention provides a network bottleneck bandwidth measurement assessment method based on active measurement and a packet gap model. According to the method, on the basis of the packet pair measurement technology principle, a three-time handshaking interaction consultation method regulated by a TCP is utilized for improving and optimizing an AllBest algorithm. A data packet pair model is adopted in the method for transmitting data packet pairs in two combination forms alternatively to the opposite terminal in a network, and the transmitting terminal tests and estimates a bottleneck bandwidth of a transmission link according to two-way transmission time and the packet length of a TCP response message returned by the opposite terminal from transmitting to receiving. The method overcomes the defects that an ICMP response message is too long, and transmission delay for returning to the transmitting terminal of a feedback message responded by the opposite terminal can not be omitted, and can achieve single-terminal deployment and fast measure the bottleneck bandwidth of the transmission link, so that practicality and accuracy of network measurement are effectively improved.

Description

technical field [0001] The invention relates to a method for detecting and evaluating bottleneck bandwidth used in network measurement, more precisely, to a method for measuring network bottleneck bandwidth based on active measurement and a packet interval model, and belongs to the technical field of bandwidth measurement of communication networks. Background technique [0002] In recent years, with the rapid development and wide application of network technology, the Internet has penetrated into many fields of human daily life, production, office, and even entertainment and consumption. From the beginning of the Internet transmission technology with a bandwidth of only a few K, to now it generally reaches a bandwidth of 10Mbps or even more than 100Mbps. The capacity of Internet transmission bandwidth has also doubled with the rapid progress of network technology. Due to the inseparable and close relationship between transmission bandwidth and user experience, larger bandwid...

AI Technical Summary

Problems solved by technology

Moreover, the protocol stacks of most of the current operating systems have implemented this new standard mechanism. For an unreachable UDP packet sent to the network peer target host with a word length of MTU, the target host responds with ICMP The text length of the port unreachable data error report can reach hundreds of bytes. In this way, the original Allbest algorithm implementation principle and application background: its transmission delay on the reverse path back to the sender can be ignored. established, it is impossible to continue to use the Allbest algorithm according to the original operation steps

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