Page 1
Product Highlights
Multiple Firmware Options
Versatility with a feature sets designed for the
campus or enterprise environment. Multiple security
technologies enhance network integrity.
High Availability and Expansion
Virtual Stacking provides agile expansion or
redundancy. Reliability through fault tolerant
topologies ensures rock-solid connectivity.
Comprehensive Security Solution
Support for Access Control List(ACL) and multiple
user authentication methods as well as IP-MAC-Port
Binding to help secure the network environment.
DGS-3120 Series
xStack L2+ Managed Gigabit Switches
Features
Flexible choices
• 24 or 48 10/100/1000 Mbps ports and 16 SFP
ports (model-specic )
• 4 or 8 combo Gigabit copper/SFP uplinks for
connections in enterprise or metropolitan areas
• 802.3af and 802.3at Power Over Ethernet
High Bandwidth Physical Stacking
• 2 dedicated stacking ports per switch
• Up to 40 Gbps full-duplex stacking bandwidth
• Up to 6 units (288 Gigabit ports) per stack
L2 Features
• 802.1D/802.1w/802.1s Spanning Tree
• Ethernet Ring Protection Switching (ERPS)
• IGMP/MLD Snooping
OAM
• 802.3ah Link OAM
• 802.1ag, ITU-T Y.1731 Service OAM
support
4
1
The DGS-3120 Series xStack switches are enhanced L2+ Gigabit switches designed to connect
end-users in a secure campus or enterprise network. These switches support physical stacking1,
multicast, and enhanced security, making them an ideal Gigabit access layer solution. The
DGS-3120-24TC/48TC provides 20 or 44 10/100/1000 Mbps Gigabit Ethernet ports, and 4
combo 1000BASE-T/SFP Gigabit Ethernet ports. The DGS-3120-24PC/48PC provides 24 or 48
10/100/1000 Mbps PoE Gigabit Ethernet ports and 4 combo 1000BASE-T/SFP Gigabit Ethernet
ports. The DGS-3120-24SC provides 16 SFP Gigabit Ethernet ports and 8 combo 1000BASE-T/
SFP Gigabit ports. Each 10/100/1000 Mbps port on the DGS-3120-24PC/48PC supports the
802.3af and 802.3at Power over Ethernet standards. The default power budget for these
models is 370 watts and can be expanded to 760 watts with the DPS-700 RPS. The switches are
also equipped with an SD Card slot, allowing the user to boot images and upload conguration
les directly from an SD Card as well as conveniently save syslog les onto the SD Card.
Standard and Enhanced Images
The DGS-3120 Series has support for two dierent software images - the Standard Image (SI)
and Enhanced Image (EI) The Standard Image provides sophisticated features for campus or
enterprise usage. It includes advanced Quality of Service (QoS), trac shaping, L2 multicasting,
robust security features, and IPv6 features which are suitable for next-generation IPv6 networks
or triple play applications over Metro Ethernet. The Enhanced Image supports ERPS, Double
VLAN (Q-in-Q), Ethernet OAM, Static Route, IMPB, and sFlow.
Page 2
DGS-3120 Series xStack L2+ Managed Gigabit Switches
Enhanced Network Reliability
The DGS-3120 Series targets enterprises, campuses, and customers who require
a high level of network security and maximum uptime. All the models in the
DGS-3120 Series support an external redundant power supply so that continued
operation can be assured. They also include other features, such as 802.1D
Spanning Tree (STP), 802.1w Rapid Spanning Tree (RSTP), and 802.1s Multiple
Spanning Tree (MSTP), Loopback Detection (LBD), and Broadcast Storm Control,
that enhances network resilience. G.8032 Ethernet Ring Protection Switching
(ERPS)2 minimizes the recovery time to 50 ms. For load sharing and redundancy
backup in a switch cascading/server attachment conguration, the DGS-3120
Series provides dynamic 802.3ad Link Aggregation Port Trunking.
If the worst should happen to your network you need the very best
support and fast. Downtime costs your business money. D-Link
Assist maximises your uptime by solving technical problems
quickly and eectively. Our highly trained technicians are on
standby around the clock, ensuring that award-winning support
is only a phone call away.
Comprehensive Security
The DGS-3120 Series provides users with the latest security features such as
Multi-layer and Packet Content Access Control Lists (ACL), Storm Control, and
IP-MAC-Port Binding (IMPB)1 with DHCP Snooping. The IP-MAC-Port Binding
feature allows administrators to bind a source IP address with an associated
MAC and also dene the port number to enhance user access control. With
the DHCP Snooping feature, the switch automatically learns IP/MAC pairs by
snooping DHCP packets and saving them to the IMPB white list. In addition,
the D-Link Safeguard Engine identies and prioritizes “CPU interested” packets
to prevent malicious trac from interrupting normal network ows, and to
protect switch operation.
Identity Driven Network Policies
The DGS-3120 Series supports authentication mechanisms such as 802.1X, Web-
based Access Control (WAC), and MAC-based Access Control (MAC) for strict
access control and easy deployment. After authentication, individual policies
such as VLAN membership, QoS policies, and ACL rules can be assigned to each
host. In addition, the switch also supports Microsoft® NAP (Network Access
Protection). NAP is a policy enforcement technology that allows customers to
protect network assets from compromised computers by enforcing compliance
with network health policies.
Trac Management for Triple Play
The DGS-3120 Series implements a rich set of multilayer QoS/CoS features to
ensure that critical network services such as VoIP, video conferencing, IPTV,
and IP surveillance are given high priority. Trac Shaping features guarantee
bandwidth for these services when the network is busy. L2 Multicast support
enables the DGS-3120 to handle growing IPTV applications. Host-based IGMP/
MLD Snooping allows multiple multicast subscribers per physical interface and
ISM VLAN to send multicast streams in a multicast VLAN to save bandwidth
and to provide better security to the backbone network. The ISM VLAN proles
allow users to bind/replace the pre-dened multicast registration information
to subscriber ports quickly and easily.
With a choice of three aordable service oerings covering all
D-Link business products, you can select the package that suits
you best:
D-Link Assist Gold - for comprehensive 24-hour support
D-Link Assist Gold is perfect for mission-critical environments
where maximum uptime is a high priority. It guarantees four hour
around-the-clock response. Cover applies 24/7 for every day of the
year including holidays.
D-Link Assist Silver - for prompt same-day assistance
D-Link Assist Silver is designed for ‘high availability’ businesses that
require rapid response within regular working hours. It provides a
four hour response service Monday to Friday from 8am to 5pm,
excluding holidays.
D-Link Assist Bronze - for guaranteed response on the
next business day
D-Link Assist Bronze is a highly cost-eective support solution for
less critical environments. Response is guaranteed within eight
business hours Monday to Friday from 8am to 5pm, excluding
holidays.
D-Link Assist can be purchased together with any D-Link business
product. So whether you’re buying switching, wireless, storage,
security or IP Surveillance equipment from D-Link, your peace
of mind is guaranteed. D-Link Assist also oers installation and
conguration services to get your new hardware working quickly
and correctly.
Page 3
DGS-3120 Series xStack L2+ Managed Gigabit Switches
Proactive, Eective Network Management
To uphold enterprise customers’ Service Level Agreements (SLA), service providers must reduce their Mean Time to Repair (MTTR) and increase service availability.
Ethernet OAM features address these challenges and enable service providers to oer carrier-grade services. The DGS-3120 Series supports industry-standard
OAM tools, including IEEE 802.3ah, IEEE802.1ag, and ITU-T Y.1731. Connectivity Fault Management (CFM) provides tools to monitor and troubleshoot end-to-end
Ethernet networks, allowing service providers to check connectivity, isolate network issues, and identify customers aected by network issues.
IPv6 Technology
The DGS-3120 Series is fully compliant with future IPv6 networks. It supports remote IPv6 manageability from telnet, HTTP, or SNMP. To create secure IPv6 networks,
the DGS-3120 Series uses IPv6 ACL, DHCPv6 Snooping, and Neighbor Discovery (ND) Snooping functions to protect the network from illegal IPv6 clients. The DGS-
3120 Series has been certied with IPv6 Ready Logo Phase 2 from the IPv6 forum, a worldwide IPv6 advocacy consortium. The IPv6 Ready Logo Program ensures
the conformance and interoperability of IPv6 products.
Green Technology
D-Link is striving to take the lead in developing innovative and power-saving technology that does not sacrice operational performance or functionality. The
DGS-3120 Series implements the D-Link Green Technology, which includes a power saving mode, Smart Fan, reduced heat, and cable length detection. The power-
saving feature automatically powers down ports that have no link or link partner. The Smart Fan feature enables the built-in fans to automatically turn on at a
certain temperature, providing continuous, reliable, and ecofriendly operation of the switch. Energy Ecient Ethernet (EEE) standard is also supported, which
helps to reduce the operating cost of the DGS-3120 Series.
Manageability
D-Link’s Single IP Management (SIM) simplies and speeds up management tasks, allowing multiple switches to be congured, monitored, and maintained from
any workstation running a web browser through one unique IP address. This virtual stack is managed as a single object, having all units maintained by one IP
address. The DGS-3120 Series also supports standard-based management protocols such as SNMP, RMON, Telnet, Console, Web-based GUI, and SSH/SSL security
authentication.
Page 4
DGS-3120 Series xStack L2+ Managed Gigabit Switches
Technical Specications
Interfaces DGS-3120-24TC DGS-3120-48TC DGS-3120-24PC
Ports • 20 10/100/1000BASE-T ports
• 4 Combo 10/100/1000BASE-T/SFP
ports
Optional Redundant Power Supply • DPS-200 • DPS-500/DPS-500DC • DPS-700
Console Port • RJ-45
Stacking Port
SD Card Slots • 1
1
• 44 10/100/1000BASE-T ports
• 4 Combo 10/100/1000BASE-T/SFP
ports
• 2
• 20 10/100/1000BASE-T ports
• 4 Combo 10/100/1000BASE-T/SFP
ports
Performance
Switching Capacity • 88 Gbps • 136 Gps • 88 Gps
64-Byte Packet Forwarding Rate • 65.48 Mbps • 101.19 Mbps • 65.48 Mbps
Packet Buffer Memory • 2 MB
Flash Memory • 32 MB
PoE
PoE Standards - - • 802.3af and 802.3at
PoE Power Budget - - • 370 watts
• 760 watts (with DPS-700 RPS)
Physical
MTBF (Hours) • 344511.586 hours • 275755.660 hours • 272292.426 hours
Acoustics • Max: 44.2 dB; Min: 28.1 dB • Max: 49.6 dB; Min: 37.7 dB • Max: 52.5 dB; Min: 38.1 dB
Heat Dissipation • 121.055 BTU/h • 209.715 BTU/h • 1665.10 BTU/h (with 370 W PoE load)
• 3227.9 BTU/h (with 760 W PoE load)
Power Input • 100 to 240 VAC, 50 to 60 Hz
Max Power Consumption • 35.5 watts • 61.5 watts • 488.3 watts (with 370 W PoE load)
• 946.6 watts (with 760 W PoE load)
Dimensions (W xD x H) • 440 x 210 x 44 mm (17.32 x 8.27 x
1.73 inches)
Weight • 2568 g (5.66 pounds) • 4537 g (10 pounds) • 5312 g (11.71 pounds)
Ventilation • Smart Fan2 (High Speed at > 40 ˚C; Low Speed at < 35 ˚C)
Operation Temperature • 0 to 50 ˚C (32 to 122 °F)
Storage Temperature • -40 to 70 ˚C (-40 to 158 °F)
Operating Humidity • 10% to 90% RH
Storage Humidity • 5% to 90% RH
Emission (EMI) • FCC Class A, CE Class A, VCCI Class A, IC, C-Tick, BSMI
Safety • CB, cUL, LVD, BSMI
• 440 x 310 x 44 mm (17.32 x 12.20 x
1.73 inches)
• 440 x 310 x 44 mm (17.32 x 12.20 x
1.73 inches)
Certification • IPv6 Ready Logo Phase 2
Page 5
DGS-3120 Series xStack L2+ Managed Gigabit Switches
Technical Specications
Interfaces DGS-3120-48PC DGS-3120-24SC
Ports • 44 10/100/1000BASE-T Ports
• 4 Combo 10/100/1000BASE-T/SFP Ports
Optional Redundant Power Supply • DPS-700 • DPS-200
Console Port • RJ-45
Stacking Port
SD Card Slots • 1
1
• 16 SFP Ports
• 8 Combo 10/100/1000Base-T/SFP Ports
• 2
Performance
Switching Capacity • 136 Gps • 88 Gps
64-Byte Packet Forwarding Rate • 101.19 Mbps • 65.48 Mbps
Packet Buffer Memory • 2 MB
Flash Memory • 32 MB
PoE
PoE Standards • 802.3af and 802.3at -
PoE Power Budget • 370 watts
• 760 watts (with DPS-700 RPS)
Physical
-
MTBF (Hours) • 213575.316 hours • 433404.414 hours
Acoustics • Max: 50.2 dB; Min: 37.3 dB • Max: 46.7 dB; Min: 30.2 dB
Heat Dissipation • 1838 BTU/h (with 370 W PoE load)
• 3283.83 BTU/h (with 760 W PoE load)
Power Input • 100 to 240 V AC, 50 to 60 Hz
Max Power Consumption • 539 watts (with 370 W PoE load)
• 963 watts (with 760 W PoE load)
Dimensions (W xD x H) • 440 x 380 x 44 mm (17.32 x 14.96 x 1.73 inches) • 440 x 210 x 44 mm (17.32 x 8.27 x 1.73 inches)
Weight • 6420 g (14.15 pounds) • 2643 g (5.83 pounds)
Ventilation • Smart Fan2 (High Speed at > 40 ˚C; Low Speed at < 35 ˚C)
Operation Temperature • 0 to 50 ˚C (32 to 122 °F)
Storage Temperature • -40 to 70 ˚C (-40 to 158 °F)
Operating Humidity • 10% to 90% RH
Storage Humidity • 5% to 90% RH
Emission (EMI) • FCC Class A, CE Class A, VCCI Class A, IC, C-Tick, BSMI • FCC Class A, CE Class A, VCCI Class A, IC, C-Tick
Safety • CB, cUL, LVD, BSMI • CB, cUL, LVD
• 114.235 BTU/h
• 33.5 watts
Certification • IPv6 Ready Logo Phase 2
Page 6
DGS-3120 Series xStack L2+ Managed Gigabit Switches
Software Features - Standard Image (SI) Features
Stackability • Physical Stacking
• Up to 40G Stacking Bandwidth
• Up to 6 units per Stack
L2 Features • MAC Address Table: 16K entries
• Flow Control
• 802.3x Flow Control
• HOL Blocking Prevention
• Jumbo Frames up to 13 Kbytes
• 802.3ad Link Aggregation
• Max. 32 groups per device, 8
Gigabit ports per group
L2 Multicasting • IGMP Snooping
• IGMP v1/v2/v3 Snooping
• Supports 1024 IGMP groups
• Port/Host-based IGMP Snooping
Fast Leave
VLAN • VLAN Group
• Max. 4K VLAN Groups
• GVRP
• Max. 255 Dynamic VLAN Groups
• 802.1Q Tagged VLAN
QoS (Quality of Service) • 802.1p
• 8 queues per port
• Queue Handling
• Strict Priority
• Weighted Round Robin (WRR)
• Strict + WRR
• Supports following actions for flows
• Remark 802.1p Priority Tag
• Remark TOS/DSCP Tag
• Bandwidth Control
• Virtual Stacking
• D-Link Single IP Management (SIM)
• Up to 32 units per Virtual Stack
• Spanning Tree Protocols
• 802.1D STP
• 802.1w RSTP
• 802.1s MSTP
• BPDU Filtering
• Root Restriction
• Loopback Detection
• Limited IP Multicast
• Up to 24 IGMP filtering profiles, 32
ranges per profile
• Port-based VLAN
• 802.1v Protocol VLAN
• Voice VLAN
• MAC-based VLAN
• CoS based on
• Switch Port
• VLAN ID
• 802.1p Priority Queues
• MAC Address
• IPv4 Address
• DSCP
• Protocol Type
• TCP/UDP Port
• User-Defined Packet Content
• IPv6 Address
• IPv6 Traffic Class
• IPv6 Flow Label
• Port Mirroring
• One-to-One
• Many-to-One
• Flow-based
• RSPAN Mirroring
• MLD Snooping
• MLD v1/v2 Snooping
• Support 1024 MLD Groups
• Host-based MLD Snooping Fast
Leave
• ISM VLAN
• Asymmetric VLAN
• Private VLAN
• VLAN Trunk ing
• Bandwidth Control
• Port-based (Ingress/Egress, Min.
Granularity 8 Kbps)
• Flow-based (Ingress/Egress, Min.
Granularity 8 Kbps)
• Three Color Marker
• CIR/PIR minimum granularity: 8
kbps
• Two Rate Three Color Marker
(trTCM), CBS/PBS
• Single Rate Three Color Marker
(srTCM), CBS/EBS
Access Control List (ACL) • ACL based on
• 802.1p Priority
• VLAN ID
• MAC Address
• Ether Type
• IPv4 Address
• DSCP
• Protocol Type
• TCP/UDP Port Number
• User-Defined Packet Content
• IPv6 Address
• IPv6 Flow Label
• IPv6 Traffic Class
Security • SSH v2
• SSL v1/v2/v3
• Port Security
• Up to 64 MAC addresses per port/
VLAN
AAA • 802.1X:
• Port-based Access Control
• Host-based Access Control
• Identity-driven Policy (VLAN, ACL
or QoS) Assignment
• Authentication Database Failover
• Web-based Access Control (WAC):
• Port-based Access Control
• Host-based Access Control
• Identity-driven Policy (VLAN, ACL
or QoS) Assignment
• Authentication Database Failover
• Supports up to 1.5K Ingress access
rules
• Time-based ACL
• CPU Interface Filtering
• Broadcast/Multicast/Unicast Storm
Control
• Traffic Segmentation
• D-Link Safeguard Engine
• NetBIOS/NetBEUI Filtering
• MAC-based Access Control (MAC):
• Port-based Access Control
• Host-based Access Control
• Identity-driven Policy (VLAN, ACL
or QoS) Assignment
• Authentication Database Failover
• Japan Web-based Access Control
(Host-based JWAC)
• Guest VLAN
• DHCP Server Screening
• ARP Spoofing Prevention
• DoS Attack Prevention
• BPDU Attack Protection
• Microsoft® NAP
• Support 802.1X NAP
• Support DHCP NAP
• RADIUS Accounting
• TACACS+ Accounting
• RADIUS and TACACS authentication
for switch access
• Four levels of User Account control
Page 7
DGS-3120 Series xStack L2+ Managed Gigabit Switches
Green Features • Compliant with RoHS
Operation, Administration &
Management (OAM)
Management • Web-based GUI
MIB • RFC 1213 MIB II
RFC Standard Compliance • RFC 768 UDP
• Power Saving by Link Status
• Cable Diagnostics
• Command Line Interface (CLI)
• Telnet Server
• Telnet Client
• TFTP Client
• ZModem
• SNMP v1/v2c/v3
• SNMP Traps
• System Log
• RMON v1:
• Supports 1,2,3,9 groups
• RFC 4188 Bridge MIB
• RFC 1157, 2571-2576 SNMP MIB
• RFC 1907 SNMPv2 MIB
• RFC 1757, 2819 RMON MIB
• RFC 2021 RMONv2 MIB
• RFC 1398, 1643, 1650, 2358, 2665
Ether-like MIB
• RFC 2674 802.1p MIB
• RFC 791 IP
• RFC 792, 2463, 4443 ICMP
• RFC 793 TCP
• RFC 826 ARP
• RFC 3513, 4291, IPv6 Addressing
Architecture
• RFC 2893, 4213 IPv4/IPv6 dual stack
function
• RFC 2463, 4443 ICMPv6
• Power Saving by Cable Length
• Time-based PoE
• RMON v2:
• Supports ProbeConfig group
• LLDP
• BootP/DHCP Client
• DHCP Auto-Configuration
• DHCP Relay
• DHCP Client Option 12
• DHCP Relay Option 82
• Flash File System
• Multiple Images
• RFC 2233, 2863 IF MIB
• RFC 2618 RADIUS Authentication
Client MIB
• RFC 2620 RADIUS Accounting
• Client MIB
• RFC 2925 PING & TRACEROUTE MIB
• RFC 2674, 4363 802.1p MIB
• RFC1065, 1066, 1155, 1156, 2578 MIB
Structure
• RFC 2462, 4862 IPv6 Stateless
Address Auto
• Configuration
• RFC 2464 IPv6 Ethernet and
definition
• RFC 1981 Path MTU Discovery for
IPv6
• RFC 2460 IPv6
• RFC 2461, 4861 Neighbor Discovery
for IPv6
• RFC 783 TFTP
3
• IEEE 802.3az Energy Efficient Ethernet
(EEE)
• Multiple Configurations
• CPU Monitoring
• Debug Command
• SNTP
• Password Recovery
• Password Encryption
• Trusted Host
• Microsoft® NLB (Network Load
Balancing) Support
• ICMPv6
• RFC 1215 MIB Traps Convention
• RFC1212 Concise MIB Definitions
• RFC1215 MIB Traps Convention
• RFC1157, 2571-2576 SNMP MIB
• RFC4022 MIB for TCP
• RFC4113 MIB for UDP
• RFC4293 IPv6 SNMP Mgmt Interface
MIB
• RFC 2068 HTTP
• RFC 1492 TACACS
• RFC 2866 RADIUS Accounting
• RFC 2474, 3260 DiffServ
• RFC 1321, 2284, 2865, 3580, 3748
Extensible
• Authentication Protocol (EAP)
• RFC 2571, 2572, 2573, 2574, SNMP
• IPv6 Ready Logo Phase 2
• RFC 854 Telnet
• RFC 951, 1542 BootP
Software Features - Enhanced Image (EI) Features
L2 Features • Ethernet Ring Protection Switching (ERPS)
VLAN • Double VLAN (Q-in-Q)
L3 Features • Max. 16 IP Interfaces • IPv6 Neighbour Discovery (ND) • ARP Proxy
L3 Routing • Static Route
Access Control List (ACL) • Supports up to 512 egress access rules
Security • IP-MAC-Port Binding
AAA • Compound Authentication
Operation, Administration &
Management (OAM)
Management • sFlow • PPPoE Circuit-ID Tag Insertion
• Port-based Q-in-Q
• 512 static routing entries for IPv4/IPv6
• ARP Packet Inspection
• IP Packet Inspection
• DHCP Snooping
• IPv6 ND Snooping
• Support up to 510 Address Binding
Entries per Device
• 802.3ah Ethernet Link OAM
• 802.3ah D-Link Extension: D-link
Unidirectional Link Detection (DULD)
• 802.1ag Connectivity Fault
Management (CFM)
• ITU-T Y.1731
Page 8
DGS-3120 Series xStack L2+ Managed Gigabit Switches
Optional Products - Accessories
DEM-CB50 50 cm Stacking Cable
DEM-CB100 100 cm Stacking Cable
DEM-CB300 300 cm Stacking Cable
DEM-CB50ICX 50 cm Cable for connecting with CX4 devices
Optional Products - Redundant Power Supply
DPS-200 60 watt Redundant Power Supply
DPS-500 140 watt Redundant Power Supply
DPS-700 589 watt Redundant Power Supply
DPS-800 2-slot Redundant Power Supply Chassis
Optional Products - SFP Transceivers
DEM-310GT 1000BASE-LX, Single-mode, 10 km
DEM-311GT 1000BASE-SX, Multi-mode, 500 m
DEM-314GT 1000BASE-LHX, Single-mode, 50 km
DEM-210 100BASE-FX, Single-mode, 15 km
DEM-211 100BASE-FX, Multi-mode, 2 km
Optional Management Software
DV-700 D-View 7 Network Management Software (downloadable from http://dview.dlink.com)
DV-700-N25-LIC D-View 7 License for 25 Nodes
DV-700-N250-LIC D-View 7 License for 250 Nodes
DV-700-P10-LIC D-View 7 License for 10 Probes
1
Only supported in EI mode
2
By default, the fan speed is low. When over 40 ˚C, the fan switches to high speed and remains high until the temperature drops below 35 ˚C.
3
Supported in DGS-3120-24PC and DGS-3120-48PC only.
4
Stacking cable and SD card are not included
For more information: www.dlink.com
D-Link European Headquarters. D-Link (Europe) Ltd., D-Link House, Abbey Road, Park Royal, London, NW10 7BX.
Specications are subject to change without notice. D-Link is a registered trademark of D-Link Corporation and its overseas subsidiaries.
All other trademarks belong to their respective owners. ©2015 D-Link Corporation. All rights reserved. E&OE.
Updated October 2015
Loading...