从IP组播数据中断故障谈网络地址设计  

Study of IP Network Address Planning from Troubleshooting Multicast-Interruptions

作　　者：王霞[1] 李敬[1] 鹿泽洲[1] 

机构地区：[1]北京航天飞行控制中心

出　　处：《飞行器测控学报》2012年第2期54-57,共4页Journal of Spacecraft TT&C Technology

摘　　要：首先描述了在IP网络环境中出现的组播数据偶断现象,分析定位了故障出现的原因。然后,详细阐述了组播维护机理,从组播管理协议的运行机制上进一步分析了组播数据偶断的过程。最后,给出了通过网络地址重新设计的方法解决问题的方案,并提出了交换机、路由器-VLAN（虚拟局域网）-主机的网络地址按顺序进行由小到大地分级分配的原则。Interruptions encountered in multicast data flow in an IP network are described and reasons for the faults are analyzed.Then,the process of interruptions is analyzed in detail from the operational mechanism of IGMP（Internet Group Management Protocol） following introduction of multicast maintenance mechanism.Finally,a solution based on redesigning of IP network addresses is given to avoid interruptions and a segmented IP network address assignment principle featuring switches or routers-VLAN（Virtual Local Area Network）-hosts incremental assignment is proposed.

关 键 词：组广播 组播查询路由器 地址规划 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]