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DES-3550 Fast Ethernet Layer 2 Switch
The following parameters may be set:
Parameter Description
From…To
Select a port or group of ports to enable for MAC notification using the pull
down menus.
State
Enable MAC Notification for the ports selected using the pull down menu.
Click Apply to implement changes made.
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 Snooping it must first be enabled for the entire Switch (see Advanced Settings). You may then
fine-tune the settings for each VLAN using 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- 14. Current IGMP Snooping Group Entries
Clicking the Modify button will open the IGMP Snooping Settings menu, shown below:
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