NETGEAR GSM7328Sv1 - ProSafe 24+4 Gigabit Ethernet L3 Managed Stackable Switch Cli Manual page 176

If an interface has IGMP Snooping enabled and you enable this interface for routing or enlist it as
a member of a port-channel (LAG), IGMP Snooping functionality is disabled on that interface.
IGMP Snooping functionality is re-enabled if you disable routing or remove port-channel (LAG)
membership from an interface that has IGMP Snooping enabled.
The IGMP application supports the following activities:
• Validation of the IP header checksum (as well as the IGMP header checksum) and discarding
of the frame upon checksum error.
• Maintenance of the forwarding table entries based on the MAC address versus the IP address.
• Flooding of unregistered multicast data packets to all ports in the VLAN.
Default disabled
Format
set igmp
Mode • Global Config
• Interface Config
Format
set igmp <vlanid>
Mode VLAN Config
no set igmp
This command disables IGMP Snooping on the system, an interface or a VLAN.
Format
no set igmp
Mode • Global Config
• Interface Config
Format
no set igmp <vlanid>
Mode VLAN Config
Switching Commands
Managed Switch CLI Manual, Release 8.0
v1.0, July 2009
3-140