D-Link DSL-G604T User Manual Page 45

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DGS-3024 Gigabit Ethernet Switch Manual
Master Port
Choose the Master Port for the trunk group using the pull-down menu.
Port Map
Choose the members of a trunked group. Up to eight ports per group can be
assigned to a group.
Active Port
Shows the port that is currently forwarding packets.
After setting the previous parameters, click Apply to allow your changes to be implemented. Successfully created trunk
groups will be show in the Current Trunking Group Entries table.
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 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 7- 9. Current IGMP Snooping Group Entries window
Clicking the Modify button will open the IGMP Snooping Settings window, shown below:
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