DGS-3024 Gigabit Ethernet Switch Manual
cannot be the same port.
IGMP
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 Snoopin
g
it must first be enabled for the entire Switch on the
Switch Information (Advanced
Settings)
window (
Configuration
>
Advanced Settings
). You may then fine-tune the settings for each VLAN by clicking
the
IGMP Snooping
link in the
Configuration
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.
IGMP Snooping
Use the
Current IGMP Snooping Group Entries
window to view
IGMP Snooping
settings. To modify the settings, click
the
Modify
button of the VLAN ID you want to change.
Figure 6- 6. Current IGMP Snooping Group Entries window
Clicking the
Modify
button will open the
IGMP Snooping Settings
window, shown below:
Figure 6- 7. IGMP Snooping Settings window
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