Abstract: Aiming at the problem that multicast data forwarding efficiency on edge network is not high enough, this paper proposes a source-specific multicast scheme for Ethernet switch. The multicast data of specific source is forwarded by snooping the IGMPv3 message. This paper describes the operation mechanism of management flow and data flow, simulates and analyzes the mechanism. Comparison results with the IGMPv2 snooping scheme show that this scheme has higher efficiency.

Key words: cmd=search&, term=">multicast, Internet Group Management Protocol(IGMP), source-specific multicast

摘要： 针对边缘网中组播数据转发效率不高的问题，提出以太网交换机的源指定组播方案。在该方案中，交换机利用对IGMPv3报文的嗅探实现指定源的组播数据转发。描述控制流和数据流的运行机制，对该机制进行仿真分析。与IGMPv2嗅探方案的比较结果证明，该方案性能较高。

关键词: 组播, 互联网组管理协议, 源指定组播

CLC Number: 

• TN929.53