Research & Implementation Of The Network Monitoring Subsystem In The Air Traffic Control Of Army

The paper describes the design and implementation about network monitoring system, which is based on Army ATC system. With the development and popularization of computer network, the scope of computer network is more and more great, and the structure is also more and more complicated. Under this kind of circumstances, one perfect network management system is the guaranty of reliable and stable operating. Army ATC (Air Traffic Control) system is a special,real-time,important system, and it is not permitted to stop system. The system must has high reliability,security,and stability. The design and implementation of network monitoring system strongly assures the realization of the above goals. As a member of network monitoring system group, the writer joined the design of network monitoring system as well as assumed the design and coding of server agent. According to real work, the paper firstly present some basic knowledge of network management, including: management model(the centralized management and the distributed management),SNMP management model –is widely adopted at present,software agent technology. And then according to the specific,especial system monitoring requirement and network system structure, combined with the good properties of the centralized management, the distributed management and the distributed agent, the paper present a innovatory network monitoring technology that is based on agent. The monitor method successfully solved the multiplicity of devices and monitoring requirement, which provide a convenient,reliable,safe monitoring software for the system.The structure of whole network monitoring system and the function of each part are analyzed. There is a technical monitor station that managed the all devices in monitor system. There is a monitor agent that gathers the monitoring information and reports to technical monitor station, receives the commands sent by technical monitor station and does proper action in each device. Server agent coded by writer is presented in detail through the SART method,and some creative key technologies are analyzed such as the combination of the software signal,the properties of process and process communication that not only solved the real monitoring problem;the adoption of the UNIX phoney system-PROCFS that not only solved the real monitoring problem;Encoding and decoding to SNMP message on BER-solved the problem on monitor between several operating system.The research results presented above have been successfully applied in Army ATC. With the high standard, the Army ATC passed the factory's check and gained high evaluation of ATM experts..