分组多播通信的低层实现  

Realization of Multicast Based on Low Level

作　　者：李冬霞[1] 苏广川[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《北京理工大学学报》2001年第5期637-640,共4页Transactions of Beijing Institute of Technology

基　　金：部级预研项目

摘　　要：针对 L inux操作系统提供的低层应用程序开发接口—— packet套接字 ,探讨基于数据链路层的分组多播通信 (multicast)方式的实现技术 .分析了 packet套接字的类型和特征 ,阐述利用该开发接口实现分组多播通信的具体编程方法与步骤 ,给出了相应的系统调用和程序段分析 .实验表明 ,利用 packet套接字可以有效地在数据链路层实现分组多播 .The realization techniques of multicast based on data link level (DLL) are discussed, considering the application program interface (API)--packet socket, a low level communication interface provided by Linux system. The features and types of packet socket are analyzed. The programming methods and steps of multicast by using packet socket are expatiated and the related system calls and analyses of the program are presented. It is proved to be effective for multicast on DLL. This conclusion is valuable for network monitors and some special application areas.

关 键 词：LINUX系统 分组多播通信 数据链路层 packet套接字 网络操作系统 网络监控 

分 类 号：TP316.81[自动化与计算机技术—计算机软件与理论]