Manual

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ip igmp snooping vlan <vlan-id> report
source-address <A.B.C.D>
no ip igmp snooping vlan <vlan-id> report
source-address
Configure forwarding IGMP packet source
address, The no operation cancels the packet
source address.
ip igmp snooping vlan <vlan-id> specific-
query-mrsp <value>
no ip igmp snooping vlan <vlan-id>
specific-query-mrspt
Configure the maximum query response time
of the specific group or source, the no
command restores the default value.
28.10.3 IGMP Snooping Examples
Scenario 1: IGMP Snooping function
Enabling IGMP Snooping function
Example: As shown in the above figure, a VLAN 100 is configured in the switch and includes
ports 1, 2, 6, 10 and 12. Four hosts are connected to port 2, 6, 10, 12 respectively and the
multicast router is connected to port 1. As IGMP Snooping is disabled by default either in the
switch or in the VLANs, If IGMP Snooping should be enabled in VLAN 100, the IGMP
Snooping should be first enabled for the switch in Global Mode and in VLAN 100 and set port
1 of VLAN 100 to be the mrouter port.
The configuration steps are listed below:
Switch(config)#ip igmp snooping
Switch(config)#ip igmp snooping vlan 100
Switch(config)#ip igmp snooping vlan 100 mrouter interface ethernet 1/0/1
Multicast
router
Group 1
IGMP
Snooping
Multicast port
Group 1
Group 1
Group 2
Multicast Server
1
Multicast Server
2