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Example 
Enable the IGMP Snooping function and modify Router Port Time as 300 
seconds, Member Port Time as 200 seconds for VLAN 1-3, and set the Leave 
time as 15 seconds for VLAN 1-2: 
TL-SL2428(config)# ip igmp snooping vlan-config 1-3 rtime 300 
TL-SL2428(config)# ip igmp snooping vlan-config 1-3 mtime 200 
TL-SL2428(config)# ip igmp snooping vlan-config 1-2 ltime 15 
Add static multicast IP address 225.0.0.1, which corresponds to VLAN 2, and 
configure the forward po
rt as port 1-3: 
TL-SL2428(config)# ip igmp snooping vlan-config 2 static 225.0.0.1 
interface fastEthernet 1/0/1-3 
ip igmp snooping multi-vlan-config 
Description 
The ip igmp snooping multi-vlan-config command is used to create Multicast 
VLAN. To delete the corresponding Multicast VLAN, please use no ip igmp 
snooping multi-vlan-config command. 
Syntax 
ip igmp snooping multi-vlan-config [ vlan-id  ] [ rtime  router-time  | mtime 
member-time  | ltime leave-time  | rport interface { fastEthernet port | 
gigabitEthernet port } ] 
no ip igmp snooping multi-vlan-config 
Parameter 
vid —— The ID of the VLAN desired to modify configuration, ranging from 2 to 
4094. 
router-time —— Router Port Time. Within this time, if the switch does not 
receive IGMP query message from the router port, it will consider this port is not 
a router port any more. Router Port Time ranges from 60 to 600 in seconds. By 
default, it is 300. 
member-time —— Member Port Time. Within this time, if the switch does not 
receive IGMP report message from the member port, it will consider this port is 
not a member port any more. Member Port Time ranges from 60 to 600 in 
seconds. By default, it is 260.