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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(sends IGMP query packets). It the state is disabled, then the switch cannot play
the role as a querier.
NOTE: If the Layer 3 router connected to the switch provides only
the IGMP proxy function but does not provide the multicast
routing function, then this state must be configured as
disabled. Otherwise, if the Layer 3 router is not selected as
the querier, it will not send the IGMP query packet. Since it
will not also send the multicast-routing protocol packet, the
port will be timed out as a router port.
Data Driven Learning
State
Specify to enable or disable the data driven learning state. (EI and SI Mode Only)
Data Drive Learning
Aged Out
Specify to enable or disable the data drive learning aged out option. (EI and SI
Mode Only)
Version
Specify the version of IGMP packet that will be sent by this port. If an IGMP packet
received by the interface has a version higher than the specified version, this
packet will be dropped.
Topology Change
Notification
Use the drop-down menu to select wheather the IGMP snooping should porecess
or ignore the link layer topology changes caused by spanning tree operation. (RI
Mode Only)
Click the Apply button to accept the changes made.
Click the <<Back button to discard the changes made and return to the previous page.
After clicking the Modify Router Port link, the following window will appear:
Figure 4-59 IGMP Snooping Router Port Settings window
The fields that can be configured are described below:
Parameter Description
Unit
Select the unit you want to configure. (EI and SI Mode Only)
Static Router Port
This section is used to designate a range of ports as being connected to multicast-
enabled routers. This will ensure that all packets with such a router as its destination
will reach the multicast-enabled router regardless of the protocol.
Forbidden Router Port
This section is used to designate a range of ports as being not connected to
multicast-enabled routers. This ensures that the forbidden router port will not
propagate routing packets out.
Dynamic Router Port
Displays router ports that have been dynamically configured.
Ports
Select the appropriate ports individually to include them in the Router Port
configuration.
Click the Select All button to select all the ports for configuration.

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)