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User Guide 317
Configuring Layer 2 Multicast IGMP Snooping Configuration
The following example shows how to enable IGMP Snooping for VLAN 1, and configure the
member port aging time as 300 seconds, the router port aging time as 320 seconds, and
then enable Fast Leave and Report Suppression for the VLAN:
Switch#configure
Switch(config)#ip igmp snooping vlan-config 1 mtime 300
Switch(config)#ip igmp snooping vlan-config 1 rtime 320
Switch(config)#ip igmp snooping vlan-config 1 immediate-leave
Switch(config)#ip igmp snooping vlan-config 1 report-suppression
Switch(config)#show ip igmp snooping vlan 1
Vlan Id: 1
Vlan IGMP Snooping Status: Enable
Fast Leave: Enable
Report Suppression: Enable
Router Time:320
Member Time: 300
Querier: Disable
...
Switch(config)#end
Switch#copy running-config startup-config
The following example shows how to enable IGMP Snooping querier for VLAN 1, and
configure the query interval as 100 seconds, the maximum response time as 15 seconds,
the last member query interval as 2 seconds, the last member query count as 3, and the
general query source IP as 192.168.0.5:
Switch#configure
Switch(config)#ip igmp snooping vlan-config 1 querier
Switch(config)#ip igmp snooping vlan-config 1 querier query-interval 100
Switch(config)#ip igmp snooping vlan-config 1 querier max-response-time 15
Switch(config)#ip igmp snooping vlan-config 1 querier last-member-query-interval 2
Switch(config)#ip igmp snooping vlan-config 1 querier last-member-query-count 3
Switch(config)#ip igmp snooping vlan-config 1 querier general-query source-
ip192.168.0.5
Switch(config)#show ip igmp snooping vlan 1
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