目录

第1章组播概述.....................................................................................................................1-1

1.1 组播简介.............................................................................................................................1-1

1.1.1 单播方式的信息传输过程.........................................................................................1-1

1.1.2 广播方式的信息传输过程.........................................................................................1-2

1.1.3 组播方式传输信息....................................................................................................1-2

1.1.4 组播中各部分的角色................................................................................................1-3

1.1.5 组播的优点和应用....................................................................................................1-4

1.2 组播模型分类.....................................................................................................................1-4

1.3 组播的框架结构..................................................................................................................1-5

1.3.1 组播地址..................................................................................................................1-6

1.3.2 组播协议..................................................................................................................1-9

1.4 组播报文的转发机制........................................................................................................1-10

1.4.1 RPF机制的应用.....................................................................................................1-11

1.4.2 RPF检查................................................................................................................1-11第2章 IGMP Snooping配置...................................................................................................2-1

2.1 IGMP Snooping简介..........................................................................................................2-1

2.1.1 IGMP Snooping原理................................................................................................2-1

2.1.2 IGMP Snooping基本概念........................................................................................2-1

2.1.3 IGMP Snooping工作机制........................................................................................2-2

2.2 IGMP Snooping配置..........................................................................................................2-4

2.2.1 启动IGMP Snooping................................................................................................2-5

2.2.2 配置IGMP Snooping版本........................................................................................2-5

2.2.3 配置IGMP Snooping相关定时器..............................................................................2-6

2.2.4 配置端口从组播组中快速删除功能..........................................................................2-6

2.2.5 配置组播组过滤功能................................................................................................2-7

2.2.6 配置端口可以通过的组播组最大数量.......................................................................2-8

2.2.7 配置静态成员端口....................................................................................................2-9

2.2.8 配置静态路由器端口................................................................................................2-9

2.2.9 配置IGMP Snooping模拟主机加入功能.................................................................2-10

2.2.10 配置查询报文的VLAN Tag..................................................................................2-11

2.2.11 配置组播VLAN.....................................................................................................2-12

2.3 IGMP Snooping显示和维护.............................................................................................2-14

2.4 IGMP Snooping典型配置举例..........................................................................................2-14

2.4.1 配置IGMP Snooping功能......................................................................................2-14

2.4.2 配置组播VLAN功能...............................................................................................2-16