摘要
互联网拓扑反映了网络元素之间的连接情况和连通特性,是网络空间地图的重要组成部分,受到了网络空间测绘领域相关研究的重点关注。然而,当前的网络拓扑测绘工作主要从网络层面构建拓扑刻画模型,再利用IP定位信息将其映射到地理信息系统(Geographical Information System,GIS)底图上,对地理区域之间的路由关系和连通特征关注甚少。为此,基于IP接口级拓扑构建了面向地理空间的网络拓扑模型,提出度量参数对国家/地区间的路由关系和连通特征进行分析,发现在全球互联网中发挥关键作用的地理区域,为全面掌握各国家/地区在网络空间的整体连通特性提供支撑。
Internet topology reflects the connection situation and connectivity characteristics between network elements,and is an important part of cyberspace map,which has attracted much attention from researches in the field of cyberspace cartography.However,most existing network topology mapping work mainly constructs topology models in the network layer and then maps nodes to GIS(Geographical Information System)using IP-geolocation information,paying little attention to the routing relationships and connectivity features between geographical areas.To overcome this problem,this paper constructs a geo�space oriented network topology model based on IP interface-level topology and proposes some metrics to capture the routing relationships and connection characteristics between different countries/regions.This work reveals the key countries/regions that contribute most for the interconnection to the Internet,which can help us to get a comprehensive picture of the overall connectivity characteristics of each country/region in cyberspace.
作者
张志勇
许莹莹
冯肖杨
贾继康
李斌
许卡
ZHANG Zhiyong;XU Yingying;FENG Xiaoyang;JIA Jikang;LI Bin;XU Ka(No.30 Institute of CETC,Chengdu Sichuan 610041,China;CETC Cyberspace Security Technology Co.,Ltd.,Chengdu Sichuan 610095,China)
出处
《通信技术》
2023年第5期598-603,共6页
Communications Technology
基金
国家重点研发计划(2022YFB3105000)。
关键词
网络空间测绘
网络拓扑特征分析
路由依赖
关键节点识别
cyberspace cartography
network topology characteristic analysis
routing dependency
key node identification
