D-Link xStack DGS-3120 Series Reference Guide

xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
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To view the following window, click L2 Features > L2 Multicast Control > IGMP Proxy > IGMP Proxy
Downstream Settings, as shown below:
Figure 4-52 IGMP Proxy Downstream Settings window
The fields that can be configured are described below:
Parameter Description
VLAN Name
Specify the VLAN Name which belongs to the IGMP proxy downstream interface.
VID List
Specify a list of VLANs which belong to the IGMP proxy downstream interface.
Downstream Action
Here the user can Add or Delete a downstream interface.
Click the Apply button to accept the changes made.
IGMP Proxy Group
This window is used to display the IGMP Proxy Group settings.
To view the following window, click L2 Features > L2 Multicast Control > IGMP Proxy > IGMP Proxy Group, as
shown below:
Figure 4-53 IGMP Proxy Group window
Click the Member Ports link to view the IGMP proxy member port information.
After clicking the Member Ports option, the following window will appear.
Figure 4-54 IGMP Proxy Group window
Click the <<Back button to return to the previous page.
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.

D-Link xStack DGS-3120 Series Specifications

General

MAC Address Table	16K entries
Ports	10/100/1000BASE-T ports
VLANs	4094
Jumbo Frame	Up to 9KB
Power Supply	Internal power supply (depending on model)
Power over Ethernet (PoE)	No
Layer 3 Features	RIP
Quality of Service (QoS)	8 queues per port, DiffServ
Security Features	ACLs
Management	Web-based, CLI, SNMP
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
SFP Ports	Combo 10/100/1000BASE-T/SFP ports and/or dedicated SFP/SFP+ ports (depending on model)