Product Highlights Flexible Choices: • 20/44 10/100/1000BASE-T ports • 4 Combo 10/100/1000BASE-T/SFP ports • 2 10-Gigabit CX4 Ports • 802.3af and 802.3at PoE support1 • Optional External Redundant Power Supply High Bandwidth Physical/Virtual Stacking: • Physical stack up to 6 units • Stackable through 2 10-Gigabit CX4 Ports • Up to 40 Gbps Full-Duplex Stacking B/W • Virtual Stack up to 32 units w/Single IP Mgt. Enhanced Image (EI) L2+ Features: • IPv4/v6 Static Routing • RIP/RIPng DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches Features Overview Reliability • Optional Redundant Power Supply (RPS) support • 802.1D/802.1w/802.1s Spanning Tree Security • L2/L3/L4 Multi-Layer Access Control • External RADIUS/TACACS+ Authentication • SSH/SSL support • 802.1X Guest VLAN • Web-based Access Control (WAC) • MAC-based Access Control (MAC) • D-Link Safeguard Engine Traffic Monitoring & Bandwidth Control • Traffic Segmentation • Granular Bandwidth Control down to 64 Kbps/port • 802.3ad Link Aggregation • RMON support • Port mirroring OAM • 802.3ah Ethernet Link OAM • 802.1ag, ITU-T Y.1731 Service OAM Configuration Management • Web-based GUI • Command Line Interface (CLI) • SNMP v1, v2c, v3 • D-Link Single IP Management (SIM) • Telnet • sFlow • LLDP, LLDP-MED The DGS-3120 xStack Series are enhanced L2 stackable access switches designed to connect end-users in a secure SMB or enterprise network. These switches support physical stacking, multicast and enhanced security, making them an ideal Gigabit access layer solution. The DGS-3120-24TC and DGS-3120-48TC provide 20 or 44 10/100/1000 Mbps Gigabit Ethernet ports and 4 combo 1000BASE-T/ SFP Gigabit Ethernet ports. The DGS-3120-24PC and DGS-3120-48PC provide 20 or 44 10/100/1000 Mbps PoE Gigabit Ethernet ports and 4 combo 1000BASE-T/ SFP Gigabit Ethernet ports. Each 10/100/1000 Mbps port of DGS-3120-24PC/48PC supports IEEE 802.3af and IEEE 802.3at Power over Ethernet standard. The default power budget is 370 Watts and can be expanded to 740 Watts with the DPS-700 RPS. The switches are also equipped with an SD Card slot, allowing the user to boot images and upload configuration files directly from an SD Card. Furthermore, syslog files can also be conveniently saved to a card. Standard and Enhanced Software Images The DGS-3120 Series supports two different software images - Standard Image (SI) and Enhanced Image (EI). The Standard Image provides sophisticated features for campus, or enterprise. It includes advanced Quality of Service (QoS), traffic shaping, L2 multicasting, and robust security features. The Enhanced Image supports ERPS, Double VLAN (Q-in-Q), Ethernet OAM, Static Route, IMPB, sFlow, IPv6 features which are suitable for the next generation IPv6 networks or triple play applications in Metro Ethernet. All DGS-3120 models are shipped with the Standard Image. A separately orderable license key may also be ordered which activates the Enhanced Image. DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches Enhanced Network Reliability Proactive, Effective Network Management The DGS-3120 Series targets enterprise/campus and customers who require a high level of network security and maximum uptime. All the models in 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 enhance network resilience. The G.8032 Ethernet Ring Protection Switching (ERPS) function minimizes the recovery time to 50 ms2. For load sharing and redundancy backup in switch cascading/server attachment configuration, the DGS-3120 Series provides dynamic 802.3ad Link Aggregation Port Trunking. To uphold enterprise customers’ Service Level Agreements (SLA), service providers must reduce the Mean Time to Repair (MTTR) and increase service availability. Ethernet OAM features address these challenges and enable service providers to offer carrier-grade services. The DGS-3120 Series supports industry-standard OAM tools, including IEEE 802.3ah, IEEE 802.1ag, 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 affected by network issues. 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) with DHCP Snooping. The IP-MAC-Port Binding feature allows administrators to bind a source IP address with an associated MAC and also define 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 identifies and prioritizes “CPU interested” packets to prevent malicious traffic from interrupting normal network flows, 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 unhealthy computers by enforcing compliance with network health policies. Traffic Management for Triple Play The DGS-3120 Series implements a rich set of multilayer QoS/CoS features to ensure that critical network services like VoIP, video conference, IPTV and IP surveillance are served with high priority. The Traffic Shaping features guarantee bandwidth of these services when the network is busy. With L2 Multicast support, the DGS-3120 shows its ability to handle growing IPTV applications. Host-based IGMP/MLD Snooping allows multiple multicast subscribers per physical interface, ISM VLAN sends multicast streams in a multicast VLAN to save bandwidth and to provide better security to the backbone network. The ISM VLAN profiles allow users to bind/replace the pre-defined multicast registration information to subscriber ports quickly and easily. IPv6 Technology The DGS-3120 Series is fully compliant with the 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 certified with IPv6 Ready Logo Phase 2 from the IPv6 forum, a worldwide IPv6 advocacy consortium. The IPv6 Ready Logo Program provides conformance and interoperability of IPv6 products. D-Link Green Technology D-Link is striving to take the lead in developing innovative and powersaving technology that does not sacrifice operational performance or functionality. The DGS-3120 Series implements the D-Link Green Technology, which includes a power saving mode, smart fan, reduced heat dissipation, and cable length detection. The power saving feature automatically powers down ports that have no link or link partner. The Smart Fan feature allows for the built-in fans to automatically adjust their speed at a certain temperature, providing continuous, reliable and eco-friendly operation of the switch. Manageability D-Link’s Single IP Management (SIM) simplifies and speeds up management tasks, allowing multiple switches to be configured, 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 DGS3120 Series also supports standard-based management protocols such as SNMP, RMON, Telnet, Console, Web-based GUI and SSH/SSL security authentication. Lifetime Warranty and NBD Replacement D-Link offers a Lifetime Warranty and Next Business Day (NBD) hardware replacement on the DGS-3120 Series of xStack L2 Managed Stackable Gigabit Switches to further its commitment to product quality and long-term customer confidence. DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches Technical Specifications DGS-3120-24TC DGS-3120-48TC DGS-3120-24PC DGS-3120-48PC •10/100/1000BASE-T ports (RJ45) 20 44 20 44 •Gigabit Combo ports (RJ45/SFP) 4 4 4 4 •10GbE Stacking Ports (CX4) 2 2 2 2 Console Port RJ45 RJ45 RJ45 RJ45 SD Card Slot 1 1 1 1 DPS-200 / DPS-200A DPS-500A DPS-700 DPS-700 88 Gbps 136 Gbps 88 Gbps 136 Gbps 65.48 Mbps 101.19 Mbps 65.48 Mbps 101.19 Mbps Packet Buffer Memory 2 MB 2 MB 2 MB 2 MB Flash Memory 32 MB 32 MB 32 MB 32 MB 802.3af / 802.3at 802.3af / 802.3at General Interfaces: Optional Redundant Power Supply Performance Switch Capacity 64-Byte Packet Forwarding Rate Power over Ethernet (DGS-3120-24PC / DGS-3120-48PC only) PoE Standards N/A N/A PoE Power Budget N/A N/A 370W 370W (740W with DPS-700) (740W with DPS-700) Physical and Environmental MTBF Acoustics 344,512 hours 275,756 hours 272,292 hours 213,575 hours Max: 44.2 dB Min: 28.1 dB Max: 49.6 dB Min: 37.7 dB Max: 52.5 dB Min: 38.1 dB Max: 50.2 dB Min: 37.3 dB 121.1 BTU/h 209.7 BTU/h Heat Dissipation Power Input 100 to 240 VAC 50 to 60 Hz 100 to 240 VAC 50 to 60 Hz Max. Power Consumption 35.5 W Dimensions (W x D x H) Weight 61.5 W 1665.10 BTU/h 1838 BTU/h (w/370 W PoE load) (w/370 W PoE load) (w/740 W PoE load) (w/740 W PoE load) 100 to 240 VAC 50 to 60 Hz 100 to 240 VAC 50 to 60 Hz 3227.9 BTU/h 3283.83 BTU/h 488.3 watts 539 watts (w/370 W PoE load) (w/370 W PoE load) (w/740 W PoE load) (w/740 W PoE load) 946.6 watts 963 watts 17.3 x 8.3 x 1.73 inches (440 x 210 x 44 mm) 17.3 x 12.2 x 1.73 inches (440 x 310 x 44 mm) 17.3 x 12.2 x 1.73 inches (440 x 310 x 44 mm) 17.3 x 15.0 x 1.73 inches (440 x 380 x 44 mm) 5.66 lbs / 2.57 kg 10.0 lbs / 4.54 kg 11.71 lbs / 5.31 kg 14.15 lbs / 6.42 kg DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches Ventilation Smart Fan3 (High Speed at > 40 ˚C; Low Speed at < 35 ˚C) Operating Temperature 32°F to 122°F (0°C to 50°C) Storage Temperature -40°F to 158°F (-40°C to 70°C) Operating Humidity 10% to 90% RH Storage Humidity 5% to 90% RH Certifications Safety CB, cUL, LVD, BSMI EMI/EMC FCC Class A, CE Class A, VCCI Class A, IC, C-Tick, BSMI Other IPv6 Ready Logo Phase 2 Software Features - All Models Standard Image (SI) Software • Ships with product • All models support the following features: Stackability Physical stacking •Up to 40G stacking bandwidth •Up to 6 units per stack Virtual Stacking •Supports D-Link Single IP Management (SIM) •Up to 32 units per Virtual 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 Spanning Tree Protocols •802.1D STP •802.1w RSTP •802.1s MSTP •BPDU Filtering •Root Restriction Loopback Detection Port Mirroring •One-to-One •Many-to-One •Flow-based •RSPAN Mirroring L2 Multicasting IGMP Snooping •IGMP v1/v2/v3 Snooping •Supports 1024 IGMP groups •Port/Host-based IGMP Snooping Fast Leave Limited IP Multicast •Up to 24 IGMP filtering profiles, 32 ranges per profile MLD Snooping •MLD v1/v2 Snooping •Support 1024 MLD Groups •Host-based MLD Snooping Fast Leave VLAN VLAN Group •Max. 4K VLAN Groups GVRP •Max. 4K Dynamic VLAN Groups 802.1Q Tagged VLAN Port-based VLAN 802.1v Protocol VLAN Voice VLAN MAC-based VLAN ISM VLAN Asymmetric VLAN Private VLAN VLAN Trunking DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches 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 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 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 Supports up to 1.5K Ingress access rules Time-based ACL CPU Interface Filtering Security SSH v2 SSL v1/v2/v3 Port Security •Up to 64 MAC addresses per port/VLAN Broadcast/Multicast/Unicast Storm Control Traffic Segmentation D-Link Safeguard Engine NetBIOS/NetBEUI Filtering DHCP Server Screening ARP Spoofing Prevention DoS Attack Prevention BPDU Attack Protection 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 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 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 Green Features Compliant with RoHS Power Saving by Link Status Power Saving by Cable Length Time-based PoE1 IEEE 802.3az Energy Efficient Ethernet (EEE) Operation, Administration & Management (OAM) Cable Diagnostics DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches Management Web-based GUI Command Line Interface (CLI) Telnet Server Telnet Client TFTP Client DNS Client Secure FTP Server ZModem SNMP v1/v2c/v3 SNMP Traps System Log RMON v1: •Supports 1,2,3,9 groups RMON v2: •Supports ProbeConfig group LLDP BootP/DHCP Client DHCP Auto-Configuration DHCP Relay DHCP Client Option 12 DHCP Relay Option 18, 37, 82 Flash File System Multiple Images Multiple Configurations CPU Monitoring Debug Command SNTP Password Recovery Password Encryption Trusted Host Microsoft® NLB (Network Load Balancing) Support ICMPv6 Enhanced Image (EI) Software • Requires additional license upgrade • Includes all SI features plus the following: L2 Features Ethernet Ring Protection Switching (ERPS) VLAN Double VLAN (Q-in-Q) •Port-based Q-in-Q L3 Features Max. 16 IP Interfaces ARP Proxy L3 Routing Static Route •512 static routing entries for IPv4/IPv6 Access Control List (ACL) Supports up to 512 egress access rules Security IP-MAC-Port Binding •ARP Packet Inspection •IP Packet Inspection •DHCP Snooping •IPv6 ND Snooping •Support up to 510 Address Binding Entries per Device AAA Compound Authentication Operation, Administration & Management (OAM) 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 Management sFlow PPPoE Circuit-ID Tag Insertion RFC 1213 MIB II 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 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 RFC 1065, 1066, 1155, 1156, 2578 MIB Structure RFC 1215 MIB Traps Convention RFC 1212 Concise MIB Definitions RFC 1215 MIB Traps Convention RFC 1157, 2571-2576 SNMP MIB RFC 4022 MIB for TCP RFC 4113 MIB for UDP RFC 4293 IPv6 SNMP Mgmt Interface MIB RFC 2737 Entity MIB (version 2) IPv6 Neighbor Discovery (ND) MIB and RFC MIB DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches RFC Standard Compliance RFC 768 UDP 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 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 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 Ordering Information4 Model Number Description Warranty DGS-3120-24TC/SI xStack Managed 20-Port Gigabit Stackable L2 Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image Lifetime DGS-3120-48TC/SI xStack Managed 44-Port Gigabit Stackable L2 Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image Lifetime DGS-3120-24PC/SI xStack Managed 20-Port Gigabit Stackable L2 PoE+ Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image Lifetime DGS-3120-48PC/SI xStack Managed 44-Port Gigabit Stackable L2 PoE+ Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image Lifetime Optional License Upgrades DGS-3120-24TC-SE-LIC DGS-3120-24TC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI) DGS-3120-48TC-SE-LIC DGS-3120-48TC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI) DGS-3120-24PC-SE-LIC DGS-3120-24PC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI) DGS-3120-48PC-SE-LIC DGS-3120-48PC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI) Optional SFP Optical Transceivers DGS-712 1000BASE-T SFP Transceiver DEM-310GT 1000BASE-LX SFP Transceiver, 10KM DEM-311GT 1000BASE-SX SFP Transceiver, up to 550M DEM-211 100BASE-FX SFP Transceiver, 2KM Optional Stacking Cables DEM-CB50 50cm Stacking Cable with screw type connector DEM-CB100 1m Stacking Cable with screw type connector DEM-CB300 3m Stacking Cable with screw type connector DGS-3120 Series xStack L2 Managed Stackable Gigabit Switches Optional Redundant Power Supplies DPS-200 / DPS-200A Redundant Power Supply Unit, 60 Watt RPSU DPS-500A Redundant Power Supply Unit, 140 Watt RPSU DPS-700 Redundant Power Supply Unit, 589 Watt RPSU DPS-800 2-Slot RPS Chassis (use for DPS-200 / DPS-200A / DPS-500A) DPS-900 8-Slot RPS Chassis (use for DPS-200) Optional Management Software DV-700 D-View 7 Network Management System DV-700-N25-LIC D-View 7 NMS - 25 Node License Upgrade DV-700-N50-LIC D-View 7 NMS - 50 Node License Upgrade DV-700-N100-LIC D-View 7 NMS - 100 Node License Upgrade DV-700-N250-LIC D-View 7 NMS - 250 Node License Upgrade DV-700-N500-LIC D-View 7 NMS - 500 Node License Upgrade DV-700-N1000-LIC D-View 7 NMS - 1000 Node License Upgrade DV-700-P5-LIC D-View 7 NMS - 5 Probe License Upgrade DV-700-P25-LIC D-View 7 NMS - 25 Probe License Upgrade This feature supported with PoE models only: DGS-3120-24PC and DGS-3120-48PC. 50ms response time based on an ITU-T G.8032 recommended environment. 3 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. 4 Stacking cable, SD card, RPS, and optical transceivers are not included and must be separately purchased. 5 Lifetime Warranty available in USA only. 1 2 Updated 14-Aug-2016 DGS-3120_REVB_DATASHEET_2.00_EN_US.PDF For more information U.S.A. | 17595 Mt. Herrmann Street | Fountain Valley, CA 92708 | 800.326.1688 | dlink.com ©2016 D-Link Corporation/D-Link Systems, Inc. All rights reserved. D-Link and the D-Link logo are registered trademarks of D-Link Corporation or its subsidiaries in the United States and/or other countries. Other trademarks or registered trademarks are the property of their respective owners. All references to speed are for comparison purposes only. Product specifications, size and shape are subject to change without notice, and actual product appearance may differ from that depcited herein. Visit us.dlink.com for more details.