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IGMP Snooping
Internet Group Management Protocol (IGMP) snooping allows the Switch to recognize IGMP queries and reports
sent between network stations or devices and an IGMP host. When enabled for IGMP snooping, the Switch can open
or close a port to a specific device based on IGMP messages passing through the Switch.
In order to use IGMP Snooping it must first be enabled for the entire Switch (see Device Information). You may
then fine-tune the settings for each VLAN using the IGMP Snooping link in the L2 Features folder. When enabled
for IGMP snooping, the Switch can open or close a port to a specific Multicast group member based on IGMP
messages sent from the device to the IGMP host or vice versa. The Switch monitors IGMP messages and discontinues
forwarding multicast packets when there are no longer hosts requesting that they continue. Use the IGMP Snooping
window to view IGMP Snooping status. To modify settings, click the Modify button for the VLAN Name entry you
want to change.
Use the IGMP Snooping window to view IGMP Snooping settings. To modify the settings, click the Modify button of
the VLAN ID to change.
Figure 7- 10. IGMP Snooping window
Clicking the Modify button will open the IGMP Snooping Settings menu, shown below:
Figure 7- 11. IGMP Snooping Settings window