Operation Manual – IGMP SnoopingH3C S9500 Series Routing Switches Table of ContentsiTable of ContentsChapter 1 IGMP Snooping Configuration ................................................................................... 1-11.1 IGMP Snooping Overview ................................................................................................. 1-11.1.1 Principle of IGMP Snooping .................................................................................... 1-11.1.2 Basic Concepts in IGMP Snooping ......................................................................... 1-21.1.3 Work Mechanism of IGMP Snooping ...................................................................... 1-41.1.4 Processing of Multicast Protocol Messages ........................................................... 1-61.1.5 Protocols and Standards......................................................................................... 1-71.2 IGMP Snooping Configuration Task List ........................................................................... 1-71.3 Configuring Basic Functions of IGMP Snooping ............................................................... 1-81.3.1 Configuration Prerequisites..................................................................................... 1-81.3.2 Enabling IGMP Snooping........................................................................................ 1-81.3.3 Configuring the Version of IGMP Snooping ............................................................ 1-91.3.4 Configuring the Function of Dropping Unknown Multicast Data ............................. 1-91.4 Configuring IGMP Snooping Port Functions.................................................................... 1-101.4.1 Configuration Prerequisites................................................................................... 1-101.4.2 Configuring Static Ports ........................................................................................ 1-101.4.3 Configuring Simulated Joining .............................................................................. 1-111.4.4 Configuring Fast Leave Processing ...................................................................... 1-121.4.5 Configuring Aging Timers for Dynamic Ports........................................................ 1-131.5 Configuring IGMP-Related Functions .............................................................................. 1-141.5.1 Configuration Prerequisites................................................................................... 1-141.5.2 Enabling IGMP Snooping Querier......................................................................... 1-151.5.3 Configuring IGMP Queries and Responses.......................................................... 1-151.5.4 Configuring Source IP Address of IGMP Queries................................................. 1-171.5.5 Configuring IGMP Report Suppression................................................................. 1-181.6 Configuring a Multicast Group Policy............................................................................... 1-181.6.1 Configuration Prerequisites................................................................................... 1-181.6.2 Configuring a Multicast Group Filter...................................................................... 1-181.6.3 Configuring Maximum Multicast Groups that Can Be Joined on a Port................ 1-191.6.4 Configuring Multicast Group Replacement ........................................................... 1-201.7 Displaying and Maintaining IGMP Snooping ................................................................... 1-211.8 IGMP Snooping Configuration Examples ........................................................................ 1-221.8.1 Configuring Simulated Joining .............................................................................. 1-221.8.2 IGMP Snooping Querier Configuration ................................................................. 1-241.8.3 Static Router Port Configuration ........................................................................... 1-261.9 Troubleshooting IGMP Snooping Configuration .............................................................. 1-281.9.1 Switch Fails in Layer 2 Multicast Forwarding........................................................ 1-281.9.2 Configured Multicast Group Policy Fails to Take Effect........................................ 1-29