[1]林俏伶,胡曦明*,李 鹏.疫情下面向大规模直播教学的组网技术研究[J].计算机技术与发展,2021,31(06):140-145.[doi:10. 3969 / j. issn. 1673-629X. 2021. 06. 025]
　LIN Qiao-ling,HU Xi-ming*,LI Peng.Research on Networking Technology for Large-scale LiveTeaching under Situation of Epidemic[J].,2021,31(06):140-145.[doi:10. 3969 / j. issn. 1673-629X. 2021. 06. 025]
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疫情下面向大规模直播教学的组网技术研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
31
期数:
2021年06期
页码:
140-145
栏目:
应用前沿与综合
出版日期:
2021-06-10

文章信息/Info

Title:
Research on Networking Technology for Large-scale LiveTeaching under Situation of Epidemic
文章编号:
1673-629X(2021)06-0140-06
作者:
林俏伶1 ; 胡曦明1; 2* ; 李 鹏1; 2
1. 陕西师范大学 计算机科学学院,陕西 西安 710119;2. 现代教学技术教育部重点实验室,陕西 西安 710119
Author(s):
LIN Qiao-ling1 ; HU Xi-ming1; 2* ; LI Peng1; 2
1. School of Computer Science,Shaanxi Normal University,Xi’an 710119,China;
2. Key Laboratory of Modern Teaching Technology,Ministry of Education,Xi’an 710119,China
关键词:
直播教学; 组网技术; 虚拟专用网; 组播; 网络仿真
Keywords:
live teaching; networking technology; VPN; multicast; network simulation
分类号:
TP393
DOI:
10. 3969 / j. issn. 1673-629X. 2021. 06. 025
摘要:
针对疫情防控期间线上直播成为在线教学主模式的发展现状,深入分析了大规模线上直播教学对数据承载网络提出了持续大规模高密度同步传输、分组式成员动态管理和资源跨域共享安全控制等组网性能新需求。 以需求为导向,提出了将 VPN 的安全性与组播数据传输的高效性相结合的“VPN+组播” 组网技术,具体给出了域内组播、全域组播和域间混合组播等三种方案设计并从数据传输控制层面详细分析了工作过程。 在此基础上,基于 eNSP 仿真平台通过组成员管理、GRE 隧道搭建、IPSec 安全协商以及安全策略调用等步骤给出“ VPN+组播” 组网技术的仿真实现,并进一步通过数据测量与性能分析验证该组网技术具有组成员管理、交互式安全协商和数据加密传输等性能,从而为大规模线上直播教学提供了切实可行的关键性基础网络技术支撑。
Abstract:
Aiming at the development status that online live is regarded as the main mode of online teaching during the epidemic prevention and control period, the in-depth analysis of large-scale online live teaching puts forward new networking performance requirements such as continuous large-scale high-density synchronous transmission, grouped member dynamic management,and cross-domain sharing security control of resources for data carrier networks. Guided by the requirements,the " VPN plus Multicast" networking technology that combines the security of VPN with the efficiency of multicast data transmission is proposed, and the intra- domain multicast networking scheme,all - domain multicast networking scheme and hybrid multicast networking scheme are specifically given while the working process of three schemes is analyzed in detail from the data transmission control level as well. On this basis,based on the eNSP simulation platform,the simulation implementation of " VPN plus Multicast" networking technology is given through the steps of multicast member management, GRE tunnel construction, IP Sec security negotiation and security policy invocation. It is further verified through data measurement and performance analysis that the networking technology has the capabilities of group member management,interactive security negotiation, and data encryption transmission, thereby providing practical and feasible key basic network technical support for? large-scale online live teaching.
更新日期/Last Update: 2021-06-10