摘要
相对于传统互联网,天地一体化信息网络更容易遭受无意或者蓄意的攻击和干扰,为此有必要研究保证天地一体化信息网络持续可用的方法.提出了一种面向天地一体化信息网络的动态重构技术,该技术首先根据链路最短路径数作为资源关键度的衡量标准感知天地一体化信息网络拓扑的实时变化;基于所感知到的变化,通过路由的动态收敛,为失效业务寻找新路径,保证网络的持续连通;进一步,通过信关站共享集群的方法,实现通信业务的动态迁移;最后,基于云计算平台,构建了天地一体化信息网络仿真体系.仿真实验表明,该技术可以在卫星节点出现故障及卫星链路发生变化时,自动感知变化并实现路径切换,保证卫星网络的重构可用;在DDoS的攻击下,能够实现在不同信关站节点的业务迁移,保持正常的通信,保证通信网络的动态重构.
Compared with the traditional Internet,the space-ground integrated information network is more vulnerable to unintentional or deliberate attacks and interferences.Therefore,it is necessary to study ways to ensure the continuous availability of the integrated information network.A dynamic reconstruction technology for the space-ground integrated information network is proposed.The technology firstly perceives the real-time change of the topological information network topology based on the shortest path number of the link as the measure of resource criticality.Based on the perceived change,through the dynamic convergence of the route,find a new path for the failed service,and ensure the dynamic continuous communication of the network;Further,through the method of sharing clusters by the gateway,the dynamic migration of communication services is realized.Finally,based on the cloud computing platform,the network-integrated information network emulation system is constructed.Emulation experiments show that the technology can automatically sense changes and implement path switching when the satellite node fails and the satellite link changes,ensuring that the reconstruction of the satellite network is available.Under the DDoS attack,traffic migration at different gateway nodes can be realized,normal communication is maintained,and dynamic reconstruction of the communication network is ensured.
作者
董若楠
张光杰
刘渊
王晓锋
李乾治
DONG Ruo-nan;ZHANG Guang-jie;LIU Yuan;WANG Xiao-feng;LI Qian-zhi(School of Digital Media,Jiangnan University,Wuxi 214122,China;School of Internet of Things Engineering,Jiangnan University,Wuxi 214122,China)
出处
《小型微型计算机系统》
CSCD
北大核心
2020年第5期1065-1070,共6页
Journal of Chinese Computer Systems
基金
国家重点研发计划项目(2016YFB0800305)资助
国家自然科学基金项目(61672264)资助.
关键词
虚拟化
天地一体化网络
动态重构
业务迁移
仿真
virtualization
space-ground integrated information network
dynamic reconfiguration
business migration
emulation
