Network performance measurement diagnostic method and system based on transmission control protocol (TCP)

Abstract

The invention discloses a network performance measurement diagnostic method based on a transmission control protocol (TCP). The method comprises the following steps: receiving a test request and target performance parameters transmitted by a client; transmitting detection flow to the client according to the test request, carrying out TCP network performance measurement and capturing background data packets to check a TCP network performance measurement result; analyzing the checked TCP network performance measurement result according to a TCP performance model and the target performance parameters; and gathering measurement data obtained in the TCP network performance measurement process and the TCP network performance measurement analysis result, and generating a TCP network performance measurement diagnostic report. By utilizing the network performance measurement diagnostic method and system based on the TCP provided by the embodiment of the invention, the problem that TCP hidden underlying errors and error symptoms are in proportion to the round-trip time is solved, the inference of the detection flow to network background flow is reduced, and the sensitiveness to local link errors is obviously improved.

Description

Technical field [0001] This application relates to the technical field of computer network traffic monitoring and analysis, and in particular to a TCP-based network performance measurement and diagnosis method and system. Background technique [0002] At present, network bandwidth continues to increase, but network performance has not been improved simultaneously. With the development of network technology, users' requirements for network speed continue to increase, and performance problems are gradually becoming more and more serious. TCP carries most of the traffic in the Internet. Its adaptive retransmission mechanism provides convenience for upper-layer applications and also hides the errors of lower-layer protocols, and the characteristics of sliding windows can easily cause the problem of error symptom scaling. Fast and effective positioning of TCP performance bottlenecks is the key to solving network performance problems. Therefore, how to measure and analyze the TCP perf...

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Problems solved by technology

[0005] After studying the existing active measurement and passive measurement, the inventor found that the active measurement increases the potential load of the network during the measurement process and has a great impact on the network; the active measurement is likely to cause the Heisenberg effect, that is, the extra traffic may interfere with the network , and cause deviations in the analysis of the results; while passive measurement is easy to capture sensitive traffic, which violates the security and privacy of users; and passive measurement can only obtain local data of the network, and cannot understand the overall situation of the network; therefore, a network performance measurement is urgently needed Diagnostic method to solve the problems existing in the active measurement and passive measurement process in the prior art

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