Configuration Guide Configuring IGMP Snooping
show ip igmp snooping gda-table
Privileged EXEC mode, global configuration mode, or interface configuration mode
This command is used to verify that the ports include only those connecting member hosts.
 Displaying the IGMP Snooping Working Mode
Privileged EXEC mode, global configuration mode, or interface configuration mode
If a device is running in IVGL mode, the following information is displayed:
IGMP Snooping running mode: IVGL
Configuration Example
 Providing Layer-2 Multicast Services for the Subnet Hosts
A is the multicast router and is connected directly to the multicast source.
B is the Layer-2 device and is connected directly to the user host.
Receiver 1, Receiver 2, and Receiver 3 belong to VLAN 1.
 Configure the IP address and VLAN.
 Enable multicast routing on A and enable the multicast routing protocol on Layer-3 interface (Gi0/1 and
VLAN 1).
 Enable IGMP snooping on B and select IVGL mode.
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