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Item#: 9SIA0AT0FS2095

D-Link DGS-3120-24TC/SI Managed 10/100/1000Mbps xStack L2 Managed Stackable Gigabit Switch - Standard Image

  • 20 x RJ45 + 4 x SFP
  • 2MB Buffer Memory
  • Managed
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The DGS-3120 xStack Series are enhanced L2 access stackable 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/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. Each 10/100/1000 Mbps port of DGS-3120-24PC/48PC supports 802.3af and 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.

  • newegg Standard and Enhanced Images The DGS-3120 Series is available with 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.
  • newegg Enhanced Network Reliability 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 ms. For load sharing and redundancy backup in switch cascading/server attachment configuration, the DGS-3120 Series provides dynamic 802.3ad Link Aggregation Port Trunking.
  • newegg 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.
  • newegg 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 and 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.
  • newegg 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.
  • newegg 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 DGS-3120 Series also supports standard-based management protocols such as SNMP, RMON, Telnet, Console, Web-based GUI and SSH/SSL security authentication.

Learn more about the D-Link DGS-3120-24TC/SI




Network Management Type
20 x RJ45 + 4 x SFP
Buffer Memory
Port Mirroring
VLAN Support
100 to 240 VAC, 50 to 60 Hz Internal Universal Power Supply
17.3" x 8.27" x 1.73"
5.64 lbs.
0ºC to 50ºC (32ºF to 122ºF)
10% - 90%, Non-condensing


Switching Capacity: 88 Gbps

64-Byte Packet Forwarding Rate: 65.48 Mpps

Flash Memory: 32 MB

Console Port: RJ-45

Stacking Port: 2

SD Card Slot: 1

Standard Image (SI) Features:

Stackability: Physical Stacking, Virtual Stacking

L2 Features:
Flow Control
Spanning Tree Protocols
Loopback Detection
802.3ad Link Aggregation

L2 Multicasting:
IGMP Snooping
Limited IP Multicast
MLD Snooping

VLAN Group -Max. 4K VLAN Groups
GVRP -Max. 255 Dynamic VLAN Groups
802.1Q Tagged VLAN
Port-based VLAN
802.1v Protocol VLAN
Voice VLAN
MAC-based VLAN
Asymmetric VLAN
Private VLAN
VLAN Trunking

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
BPDU Attack Protection

Web-based GUI (Supports IPv4)
Command Line Interface (CLI)
Telnet Server(Supports IPv4)
Telnet Client(Supports IPv4)
TFTP Client(Supports IPv4)
SNMP v1/v2c/v3
SNMP Traps
System Log (Supports IPv4 Log Server)
RMON v1: Supports 1,2,3,9 groups
RMON v2: Supports ProbeConfig group
BootP/DHCP Client
DHCP Auto-Configuration
DHCP Relay
DHCP Relay Option 12
DHCP Relay Option 82
Flash File System
Multiple Images
Multiple Configurations
CPU Monitoring
Debug Command
Password Recovery
Password Encryption
Trusted Host
Microsoft NLB (Network Load Balancing) Support

Quick Info


  • Limited Warranty period (parts): Lifetime
  • Limited Warranty period (labor): Lifetime

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Item#: 9SIA0AT0FS2095
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