天地一体化信息网络域间协议实验平台  

Emulation platform for inter-domain protocols validation of integrated space-terrestrial network

作　　者：杨增印 李贺武[3,2] 吴茜[3,2] 吴建平[1,3,2] 刘君[3,2] YANG Zengyin;LI Hewu;WU Qian;WU Jianping;LIU Jun(Department of Computer Science and Technology,Tsinghua University, Beijing 100084,China;Institute for Network Sciences and Cyberspace,Tsinghua University, Beijing 100084,China;Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China)

机构地区：[1]清华大学计算机科学与技术系,北京100084 [2]清华大学北京信息科学与技术国家研究中心,北京100084 [3]清华大学网络科学与网络空间研究院,北京100084

出　　处：《通信学报》2019年第5期1-12,共12页Journal on Communications

基　　金：国家自然科学基金重点资助项目(No.91738202);北京市科技计划基金资助项目(No.Z171100005217001);北京信息科学与技术国家研究中心基金资助项目(No.20031887521)~~

摘　　要：域间协议是快速实现天地一体化信息网络中各类卫星系统及天地异构网络间互联的关键。然而,天地一体化信息网络的天、地网络拓扑的极大差异性使直接部署现有域间协议可能面临性能问题。为验证域间协议的工作性能,设计了一种天地一体化信息网络协议验证平台,采用虚拟网络技术高效模拟大规模、高动态的空间网络以及现有地面网络。实验结果显示,随着空间网络的拓扑规模和地面网络的路由表规模增加,天、地网络间的互联效率变得非常低。The inter-domain routing protocol is a key factor in the rapid integration of various satellite systems and het- erogeneous networks in integrated space-terrestrial network (ISTN). However, the wide difference between network to- pologies of space and terrestrial networks may present significant challenges to the deployment of existing inter-domain protocols. To test the performance of these protocols, an emulation platform for ISTN was designed to efficiently emulate the dynamic and large-scale space network and the existing terrestrial networks using virtual network technology. Exten- sive experiments demonstrate that, with the expansion of the scale of space network and the scale of terrestrial Internet’s routing table, the integration efficiency between space and terrestrial networks becomes very low.

关 键 词：天地一体化信息网络 实验平台 域间协议验证 虚拟网络技术 拓扑动态性 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]