摘要
航天测控通信中越来越多的点对多点业务数据采用指定源组播(Specified Source Multicast,SSM)技术进行传输。对指定源组播和IGMP v3(Internet Group Management Protocol)协议概念进行了简要介绍,论述了实现指定源组播可通过定源组播映射和软件编码两种方法,分析得出采用软件编码方法易于实现和维护的结论,并给出了Windows XP操作系统下的软件代码。通过仿真和航天测控通信IP网实际应用,验证了软件编码方法的预期效果。
In the Space TTC Communication,Specified Source Multicast（ SSM） is used in more and more data-transmitting service,which transmits information from one source to several destinations. Firstly,the concept of Specified Source Multicast and IGMP v3 is described. And then,this paper introduces the implementation methods for SSM,ssm-mapping and software coding. It is concluded that software coding is easy to implement and maintain,and the software code is given for Windows XP. Simulations and actual applications in the Space TTC communication network show that the method is effective.
出处
《无线电工程》
2014年第9期5-7,共3页
Radio Engineering
基金
国家自然科学基金资助项目(51307112)
河北省教育厅基金资助项目(Q2012118)
关键词
组播
IGMP
V3
指定源组播
通信网络
multicast
IGMP v3
specified source multicast
communication network
