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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Figure 8-31 DHCP Snooping Limit Rate Settings window
The fields that can be configured are described below:
Parameter Description
Unit
Select the unit you want to configure. (EI Mode Only)
From Port/To Port
Select a range of ports to be configured.
Rate Limit (1-2048)
Enter the number of DHCP messages that an interface can receive per second. Tick
the No Limit check box to disable DHCP snooping rate limiting.
Action
Use the drop-down menu to select the DHCP protection mode.
Shutdown – Shut down the port when the port enters the under attack state.
Drop – Drop all the above rate limit DHCP packets when the port enters the under
attack state.
Click the Find button to locate a specific entry based on the port number selected.
ND Snooping
ND Snooping Maximum Entry Settings
Users can configure the maximum ND Snooping entry for ports on this page.
To view this window, click Security > IP-MAC-Port Binding (IMPB) > ND Snooping > ND Snooping Maximum
Entry Settings as shown below:

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)