618 CHAPTER 46: IGMP CONFIGURATIONn ■ Configurations performed in IGMP view are effective on all interfaces, whileconfigurations performed in interface view are effective on the currentinterface only.■ If a feature is not configured for an interface in interface view, the globalconfiguration performed in IGMP view will apply to that interface. If a featureis configured in both IGMP view and interface view, the configurationperformed in interface view will be given priority.Configuring BasicFunctions of IGMPConfigurationPrerequisitesBefore configuring the basic functions of IGMP, complete the following tasks:■ Configure any unicast routing protocol so that all devices in the domain areinteroperable at the network layer.■ Configure PIM-DM or PIM-SMBefore configuring the basic functions of IGMP, prepare the following data:■ IGMP version■ Multicast group and multicast source addresses for static group memberconfiguration■ ACL rule for multicast group filteringEnabling IGMP First, IGMP must be enabled on the interface on which the multicast groupmemberships are to be established and maintained.Follow these steps to enable IGMP:Task Description“Configuring Basic Functions of IGMP” onpage 618“Enabling IGMP” on page 618 Required“Configuring IGMP Versions” onpage 619Optional“Configuring a Static Member of aMulticast Group” on page 619Optional“Configuring a Multicast GroupFilter” on page 620Optional“Adjusting IGMP Performance” on page620“Configuring IGMP MessageOptions” on page 620Optional“Configuring IGMP Query andResponse Parameters” on page621Optional“Configuring IGMP Fast LeaveProcessing” on page 623OptionalTo do… Use the command… DescriptionEnter system view system-view -
