ip pim sparse-modeEnable PIM sparse mode and IGMP on the interface.C-Series, E-Series, S-Series, Z-Series, S4810Syntax ip pim sparse-modeTo disable PIM sparse mode and IGMP, use the no ip pim sparse-mode command.Defaults Disabled.Command Modes INTERFACECommand History Version 8.3.11.1 Introduced on the Z9000.Version 8.3.7.0 Introduced on the S4810.Version 8.1.1.0 Introduced on the E-Series ExaScale.Version 7.8.1.0 Introduced on the C-Series for the port-channels and the S-Series.UsageInformationC-Series supports a maximum of 31 PIM interfaces.The interface must be enabled (the no shutdown command) and not have theswitchport command configured. Multicast must also be enabled globally (using the ipmulticast-lag-hashing command). PIM is supported on the port-channel interface.RelatedCommandsip multicast-lag-hashing – enables multicast globally.ip pim sparse-mode sg-expiry-timerEnable expiry timers globally for all sources, or for a specific set of (S,G) pairs defined by an access list.C-Series, E-Series, S-Series, Z-Series, S4810Syntax ip pim sparse-mode sg-expiry-timer seconds [access-list name]To disable configured timers and return to default mode, use the no ip pim sparse-mode sg-expiry-timer command.Parametersseconds Enter the number of seconds the S, G entries are retained. The rangeis 211 to 86400.access-list name (OPTIONAL) Enter the name of a previously configured Extended ACLto enable the expiry time to specified S,G entries.Defaults Disabled. The default expiry timer (with no times configured) is 210 sec.Command Modes CONFIGURATION1138
