Linux-Based Research And Implementation Of Network Measurement

Measurement refers to the network through the acquisition of network packet analysis, the statistics of the corresponding critical network information. In the special industrial control applications, due to its real-time network, health monitoring and other high performance requirements, so the measurement of industrial Ethernet networks is necessary. This paper focuses on building industrial site easy to use embedded network measurement techniques were studied and realized.First of all, from measurement of network theory were summarized. Network measurement based on past data of the article, the contents of the network measurements and methods are summarized. In this paper, packet loss, latency measurement and network performance parameters measured through routing, network measurement system was designed architecture. Measurement of the structure of the network structure is divided into data packets, packet access, packet analysis, data storage, data show that the five steps. Then turn on the five parts of the research analyzed in detail.Secondly, from experiment realized network measurement hardware platform. Main contents: embedded network measurement environment of structures, the realization of the daemon, procedure automatic startup configuration, system Telnet control. Embedded environment structures studied embedded network measurement system hardware and software requirements. Daemon realization, make a program to be embedded equipment continued operation. Automatic startup configuration program, make a program to be embedded equipment boot automatically activated operation. To achieve remote access control, makes embedded equipment manageable control.Thirdly, the network measurement procedure was realized. This measurement system will be divided into two modules: delay measurement module and routing measurement module. Measurement delay measurement module of packet loss rate, delay parameters. Routing is the measurement of measurement module through the routing node information. Embedded application, this paper will delay module transplanted into Embest EDUKIT-III embedded system.Finally, verify the network measurement system in fact the corresponding module function. This paper selects the connection and outer net environment, and in the host for Linux system under lost package, time delay, after routing IP address network parameters were measured and compared system bringing measurement procedures, and analyzes the results of the advantages and disadvantages of the system and the application prospect in embedded network.