偶发组播数据丢包问题研究  

Study on Packet Loss during Transmission of Sporadic Multicast Data

作　　者：王湘[1] 石湘[1] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431

出　　处：《飞行器测控学报》2012年第4期76-79,共4页Journal of Spacecraft TT&C Technology

摘　　要：针对传输关键控制数据的某型冗余备份网络架构在大背景流量下偶发组播数据丢包的问题,分析了丢包机理,提出配置静态组播组的方法,同时进行了实验验证。结果表明,该方法能有效解决工程实践中出现的问题。因此,在网络结构设计时,要充分考虑传输链路中会对组播传输产生洪泛的设备,采取有效措施消除影响,确保组播数据传输的正确性与完整性。This paper proposes configuration of static muhicast groups to avoid loss of packets during transmission of sporadic muhicast data in some redundant network architecture that transmits critical control data in heavy back- ground traffic following analysis of the mechanism of the problem. Experiment verification shows that the method effectively solves the problem in engineering practice. Adequate attention is called for on equipment that could flood multicast data in a transmission link during design of network architecture and effective measures should be taken to prevent the problem of packet loss in order to ensure the correctness and integrity of multicast data transmitted.

关 键 词：冗余备份网络架构 大背景流量 组播 洪泛 丢包 

分 类 号：V55[航空宇航科学与技术—人机与环境工程] TP939[自动化与计算机技术]