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Name:
DGS-3120-24TC
- Description:
- D-Link 20 Gigabit electrical ports + 4 Gigabit optical multiplexing ports, switching capacity: 336G/3.36T, packet forwarding rate: 96Mpps/126Mpps, pure three-layer network management switch, support DHCP server, rack type　
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DGS-3120-24TC Overview
DGS-3120-24TC is a high-performance smart managed switch designed for scalability and flexibility in modern network environments. Built on a robust architecture, this switch provides 24 10/100/1000 Ethernet ports alongside 4 gigabit SFP ports for fiber connectivity. Its efficient stacking capability and intuitive management interface deliver seamless integration into both desktop and rack-mount configurations, making it well-suited for small to medium-sized business networks and campus deployments.
DGS-3120-24TC offers versatile power options with an AC power supply and is engineered for optimal performance with low latency and high switching capacity. The switch’s advanced features, including comprehensive port/expansion slot details and support for a mix of twisted pair and fiber media types, ensure reliable connectivity and easy network expansion. Its streamlined design and robust performance make it ideal for enterprises seeking cost-effective, agile solutions for their critical networking needs.
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Explore more options from Switches or explore other D-Link products.
DGS-3120-24TC Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 |
| Form Factor | Desktop / Rack-mount |
| Power Consumption | 28 W |
| Number Of Ethernet Ports | 12–24 Ports |
| Number Of Downlink Ports | 24 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Twisted Pair / Fiber |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | DGS-3120-24TC |
| Uplink Configuration | 1G |
| IOS | LAN Lite |
| POE Support | Non POE |
| SFP Ports | 4 SFP Ports |
| Memory | 128 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | 24 x RJ45 ports, 4 x SFP ports |
| Flash Memory | 32 MB |
| Switching Capacity | 48 Gbps |
| Switching Capacity With Stacking | 96 Gbps |
| Product Name | DGS-3120-24TC Smart Managed Switch |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 11 inches |
| Weight | 10 lbs |
DGS-3120-24TC Use Case
Data Center Server Farm Aggregation with High-Throughput Switching
In a mid-sized data center, the DGS-3120-24TC-D-Link integrates rack servers via its 20 Gigabit electrical ports and 4 Gigabit optical multiplexing ports, leveraging a 336 Gbps switching capacity and 96 Mpps packet forwarding rate. Its pure three-layer network management design and built-in DHCP server enable segmented VLAN routing and automated IP assignment for virtualized workloads. Outcome: streamlined east-west traffic consolidation, sub-millisecond latency, and simplified server farm management in a single rack-mount chassis.
Enterprise Campus Distribution and DHCP-Enabled Core Switching
At a large corporate campus, the DGS-3120-24TC-D-Link functions as the distribution layer switch, connecting building access points over 20 Gigabit copper ports and 4 Gigabit fiber uplinks. With a 3.36 Tbps switching capacity, 126 Mpps forwarding rate, pure L3 routing, and on-board DHCP server, it centralizes VLAN-to-VLAN routing and dynamic IP provisioning for 1,500+ endpoints. Outcome: enhanced network stability, elimination of broadcast storms, accelerated deployments, and reduced operational overhead.
ISP Metro Edge Aggregation with Scalable Subscriber Management
An urban ISP deploys the DGS-3120-24TC-D-Link at its metro edge to aggregate customer fiber circuits via 4 Gigabit SFP ports and deliver copper-based services through 20 Gigabit electrical interfaces. Its robust L3 switching capacity and integrated DHCP server assign subscriber IPs on-the-fly, enforce VLAN segmentation, and prioritize VoIP/IPTV traffic. Outcome: scalable, high-throughput subscriber provisioning, consistent QoS during peak hours, and simplified edge-site maintenance in a rack-mount form factor.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Depth | N/A | 10 inches | 11.42 inches | 11 inches | 9.8 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 32 MB | 64 MB | 32 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Desktop / Rack-mount | Rack-mount |
| Height | N/A | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Lite | LAN Lite | LAN Lite | LAN Lite |
| Layer Supported | Layer 2 | Layer 2 | Layer 2 | Layer 2 | Layer 2 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | DGS-3000-28XS | DGS-3000-28X | DGS-3120-48TC | DGS-3120-24TC | DGS-3120-24SC |
| Media Type Supported | Twisted Pair | Twisted Pair | Combo | Twisted Pair / Fiber | Combo |
| Memory | 256 MB | 128 MB | 256 MB | 128 MB | 256 MB |
| Number of Downlink Ports | 24 Ports | 24 Ports | 48 Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 12–24 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 24 Ethernet ports and 4 10G SFP+ uplink ports | 24 x 10/100/1000 RJ45 ports and 4 x 1G SFP slots | 48 x 10/100/1000 ports and 4 x 10/100/1000 SFP slots | 24 x RJ45 ports, 4 x SFP ports | 24 x 10/100/1000 Ethernet ports and 4 x 1G SFP ports |
| Power Consumption | N/A | 27W | 40W | 28 W | 26W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | D-Link DGS-3000-28XS Managed Gigabit Switch | DGS-3000-28X Smart Managed Switch | D-Link DGS-3120-48TC Gigabit Switch | DGS-3120-24TC Smart Managed Switch | DGS-3120-24SC Stackable Gigabit Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | No | No | No |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 56 Gbps | 104 Gbps | 48 Gbps | 52 Gbps |
| Switching Capacity with Stacking | 352 Gbps | 112 Gbps | N/A | 96 Gbps | 104 Gbps |
| Uplink Configuration | 10G | 1G | 1G | 1G | 1G |
| Weight | N/A | 6.6 lbs | 16 lbs | 10 lbs | 12 lbs |
| Width | N/A | 17 inches | 17.3 inches | 17.5 inches | 17 inches |
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Questions & Answers
Q
What port types and speeds does the D-Link DGS-3120-24TC support?
A
The DGS-3120-24TC features 20 Gigabit RJ-45 ports and 4 Gigabit SFP fiber slots for high-speed connectivity.
Q
What is the switching capacity and packet forwarding rate of the DGS-3120-24TC?
A
It offers a 336 Gbps switching capacity with packet forwarding rates up to 96 Mpps (Layer 2) and 126 Mpps (Layer 3).
Q
Does the DGS-3120-24TC support Layer 3 routing protocols?
A
Yes, it provides full Layer 3 routing with static routes, RIP, OSPF, VRRP and policy-based routing.
Q
Can I use the DGS-3120-24TC as a DHCP server?
A
Yes, the DGS-3120-24TC includes a built-in DHCP server to dynamically assign IP addresses and simplify network management.
Q
How can I manage and configure the DGS-3120-24TC?
A
You can manage it via a web-based GUI, CLI (SSH/Telnet), SNMP or D-Link Network Assistant for centralized control.
Q
Is the DGS-3120-24TC rack-mountable?
A
Yes, it comes with brackets for installation in a standard 19-inch equipment rack.
Q
Which SFP transceivers are compatible with the DGS-3120-24TC?
A
It supports D-Link 1 Gbps SFP modules (SX/LX/ZX) and any IEEE 802.3z-compliant third-party SFP.
Q
What VLAN and QoS features does the DGS-3120-24TC offer?
A
It supports 802.1Q VLAN, QinQ, ACL-based VLAN, advanced QoS with traffic shaping, DSCP and priority queuing.
Q
What redundancy and high-availability features are available?
A
The switch supports STP/RSTP/MSTP, ERPS (G.8032), VRRP and dual firmware images for uninterrupted operations.
Q
Does the DGS-3120-24TC support link aggregation?
A
Yes, it offers IEEE 802.3ad LACP with up to 8 aggregation groups and 8 ports per group for increased bandwidth.
Q
Is IPv6 fully supported on the DGS-3120-24TC?
A
Yes, it includes full IPv6 management, IPv6 ACL, DHCPv6, and IPv6 static and dynamic routing.
Q
What security features are built into the DGS-3120-24TC?
A
Security includes 802.1X port authentication, DHCP snooping, IP–MAC binding, port security and ACL filtering.
Q
Can I update the firmware on the DGS-3120-24TC remotely?
A
Yes, firmware updates can be performed via the web GUI, TFTP or SNMP to ensure the latest security and features.
Q
What are the environmental specifications and power consumption?
A
It operates from 0 °C to 50 °C, 10–90% RH, and consumes up to 45 W, optimized for standard rack cooling.
Q
Does the DGS-3120-24TC offer traffic monitoring and diagnostics?
A
Yes, it includes RMON, sFlow, SNMP traps and port mirroring for comprehensive network analysis.
