D-Link xStack DGS-3120 Series Reference Guide

xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
373
Figure 8-67 Traffic Segmentation Settings window
The fields that can be configured are described below:
Parameter Description
Port List Enter a list of ports to be included in the traffic segmentation setup. Tick the All ports
check box to select all ports.
Forward Port List
Enter a list of ports to be included in the traffic segmentation setup. by simply ticking
the corresponding port’s tick box. Tick the All ports check box to select all ports.
Unit
Select the unit you want to configure. (EI and SI Mode Only)
Click the Apply button to accept the changes made.
DHCP Server Screening
This function allows the user to not only to restrict all DHCP Server packets but also to receive any specified DHCP
server packet by any specified DHCP client, it is useful when one or more DHCP servers are present on the
network and both provide DHCP services to different distinct groups of clients.
The first time the DHCP filter is enabled it will create both an access profile entry and an access rule per port entry,
it will also create other access rules. These rules are used to block all DHCP server packets. In addition to a permit
DHCP entry it will also create one access profile and one access rule entry the first time the DHCP client MAC
address is used as the client MAC address. The Source IP address is the same as the DHCP server’s IP address
(UDP port number 67). These rules are used to permit the DHCP server packets with specific fields, which the user
has configured.
When DHCP Server filter function is enabled all DHCP Server packets will be filtered from a specific port.
DHCP Server Screening Port Settings
The Switch supports DHCP Server Screening, a feature that denies access to rogue DHCP servers. When the
DHCP server filter function is enabled, all DHCP server packets will be filtered from a specific port.

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)