D-Link DGS-1510-28P User Manual - Page 121
IGMP Snooping, IGMP Snooping Settings
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DGS-1510 Series Gigabit Ethernet SmartPro Switch Web UI Reference Guide 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. IGMP Snooping Settings In order to use IGMP Snooping it must first be enabled for the entire Switch under IGMP Global Settings at the top of the window. You may then fine-tune the settings for each VLAN by clicking the corresponding Edit button. 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. To view the following window, click L2 Features > L2 Multicast Control > IGMP Snooping > IGMP Snooping Settings, as shown below: Figure 5-37 IGMP Snooping Settings window The field that can be configured for Global Settings is described below: Parameter Global State Description Select this option to enable or disable IGMP snooping global state. Click the Apply button to accept the changes made. The fields that can be configured for VLAN Status Settings are described below: Parameter VID Description Enter a VLAN ID from 1 to 4094, and select to enable or disable IGMP snooping on the VLAN. Click the Apply button to accept the changes made. The fields that can be configured for IGMP Snooping Table are described below: Parameter VID Description Enter a VLAN ID from 1 to 4094. Click the Find button to locate a specific entry based on the information entered. 113