以太网交换机中组播技术的实现

Implementation of Multicast in Ethernet Switch

目前各种基于宽带的多媒体应用层出不穷 ,这就迫切需要一种新的数据传播技术即组播技术的支持 ,最大效率地利用现有有限的网络资源。首先介绍了组播技术的相关基础知识 ,然后重点描述了流行的组播协议IGMP协议 ,基于此作者结合自己的课题 ,以一交换芯片为例 ,讨论了如何在二层交换机中实现组播功能。

At present, wideband-based multimedia applications have become the hot point. Thus a new kind of data transmission technology-multicast, emerged to fully exploit the limited network resources. This paper firstly describes the general knowledge of multicast , then focuses on introduction of Internet Group Management Protocol (IGMP). In the end the author based on her project discusses the realization of multicast on a specific layer2 switch.