Research And Implementation Of Autonomous Topology Visualization System Based On Geographic Information

The Internet is composed of a large number of Autonomous Systems(AS).With the rapid development of computer networks,great changes have taken place in computer networks.The complexity,heterogeneity and variability of the network have brought network security and management.challenge.The visualization of AS topology reflects the connection relationship between different ASs and network input and output strategies,indirectly reflects the interconnected relationship between countries,and reflects the dependence of network paths.Studying its network topology has far-reaching significance for regional and national network management and security.The traditional AS-level topology visualization abstracts the network topology into an undirected graph,in which each AS is regarded as a single point in the graph,and the relationship between ASs through the border gateway protocol is regarded as an edge in the graph,which ignores the geographic information attribute of the autonomous domain system.,cannot reflect the actual location of the autonomous domain system and the coverage area of the network infrastructure,and lacks the ability to display in the geographic information space.This topic proposes an autonomous domain-level topology visualization method based on geographic information.By obtaining IP prefix geographic location information,calculating the IP prefix coverage geographic area set of the autonomous domain,and combining the number of cities in the country,the global autonomous domain is classified and geographically classified.On this basis,the geographic location layer is associated with the network control layer,and the global AS-level topology is displayed hierarchically.The topology visualization layout algorithm is improved by analyzing the community characteristics and geographical characteristics of the network.Based on the proposed visualization method,this topic designs and implements an autonomous domain-level topology visualization system based on geographic information.The system is mainly composed of three layers:data layer,logic layer and display layer.First,the autonomous domain-level topology is constructed by collecting and processing routing data and related geographic data;Geolocation of autonomous domains;then complete topology layout through network community division,improved force-guided layout,and geographic coordinate mapping;finally,global network topology is displayed in two-dimensional plane and three-dimensional space respectively.The experimental results show that the autonomous domain-level topology visualization system designed in this topic can provide users with auxiliary means in summarizing the distribution characteristics and analysis of autonomous domains in different regions,and the system can perform autonomous domain topology layout based on the community geographical characteristics of the network.Basic resource management,network routing security event monitoring and situational assessment play an important role.