Layer 2 Switching Commands 476console(config)#ip igmp snooping vlan 2 last-member-query-interval 7ip igmp snooping vlan mcrtrexpiretimeThis command sets the Multicast Router Present Expiration time. The timeis set on a particular VLAN. This is the amount of time in seconds that aswitch waits for a query to be received on an interface before the interface isremoved from the list of interfaces with multicast routers attached. The rangeis 1–2147483647 seconds. A value of 0 indicates an infinite time-out (noexpiration). The no form of this command sets the Multicast Router PresentExpiration time to 0. The time is set for a particular VLAN.Syntaxip igmp snooping vlan vlan-id mcrtexpiretime timeno ip igmp snooping vlan vlan-id mcrtexpiretime time• vlan-id — A VLAN identifier (Range 1-4093).• time— Multicast router present expiration time. (Range: 1–3600)Default ConfigurationThe default multicast router present expiration time is 300 seconds.Command ModeGlobal Configuration modeUser GuidelinesThe mcrexpiretime should be less than the group membership interval.ExampleThe following example sets the multicast router present expiration time onVLAN 2 to 60 seconds.console(config)#ip igmp snooping vlan 2 mcrtrexpiretime 1500ip igmp snooping report-suppressionThis command enables IGMP report suppression on a specific VLAN. The noform of this command disables report suppression.
