- Enhanced Features Including ACLs, IPv6 support, Static Routing, IP-MAC Binding, Guest VLANs, and Stacking Up to 6 Units via 40Gbps CX4 stacking
- Brings Advanced Enterprise Network Management Features to a Cost-Effective Level
- Support Standards-Based Management Protocols Including SNMP, RMON, Telnet, a Web-Based GUI, and SSH/SSL
- D-Link Green Technology, which includes a power saving mode, smart fan, reduced heat dissipation, and cable length detection.
- Standard Image features and Enhanced Image features for multiple network requirements

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. 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 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.

Proactive, Effective Network Management
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, 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 affected by network issues.

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 TechnologyD-Link is striving to take the lead in developing innovative and power-saving 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 turn on at a certain temperature, providing continuous, reliable and eco-friendly operation of the switch.

Manageability
D-Link’s Single IP Management (SIM) simpliflies 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.

Specification

Product
Product id	336573
Brand	D-Link
Partnr	DGS-3120-24TC/SI
EAN/UPC code	790069342035
Data transmission
MAC address table	16000 entries
Maximum data transfer rate	1 Gbit/s
Supported data transfer rates	10/100/1000 Mbps
Switching capacity	88 Gbit/s
Jumbo frames support	Y
Packet buffer memory	2 MB
Network
Networking standards	IEEE 802.3, IEEE 802.3ab, IEEE 802.3u
10G support	Y
Copper ethernet cabling technology	1000BASE-T, 100BASE-TX, 10BASE-T
Full duplex	Y
Flow control support	Y
Number of VLANs	4000
Management features
Switch type	Managed
Switch layer	L2+
Quality of Service (QoS) support	Y
Web-based management	Y
Protocols
Management protocols	Telnet, SNMP v1/v2c/v3
Ports & interfaces
Basic switching RJ-45 Ethernet ports quantity	20
Gigabit Ethernet (copper) ports quantity	20
SFP module slots quantity	4
Console port	RJ-45
SFP slots quantity	4
Power connector	DC-in jack
Security
Access Control List (ACL)	Y
IGMP snooping	Y
SSH/SSL support	Y
Weight & dimensions
Dimensions (WxDxH)	440 x 210 x 44 mm
Width	440 mm
Depth	210 mm
Height	44 mm
Weight	2570 g
Packaging data
Package weight	4268.8 g
Package width	348 mm
Package depth	511 mm
Package height	91 mm
Power
Redundant power supply (RPS) support	Y
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	40.5 W
Multicast features
Multicast support	Y
Endurance
Mean time between failures (MTBF)	561829573 uur
Design
Stackable	Y
Product colour	Black
Number of fans	1 ventilator(en)
Safety	CB, cUL, LVD
Certification	FCC A, CE A, VCCI A, IC, C-Tick
Operational conditions
Heat dissipation	138105 BTU/h
Storage temperature (T-T)	-40 - 70 °C
Storage relative humidity (H-H)	5 - 90 procent
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	10 - 90 procent
Performance
Flash memory	32 MB
Noise level	49.8 dB
Technical details
Shipping (inner) case height	383 mm
Pallet height (sea)	2050 mm
Quantity per pallet (sea)	120 stuk(s)
Number of cartons per pallet (sea)	40
Pallet gross weight (sea)	566756 g
Pallet height (air)	2050 mm
Pallet width	1200 mm
Pallet length	1100 mm
Quantity per pallet (air)	120 stuk(s)
Number of cartons per pallet (air)	40
Pallet gross weight (air)	566756 g
Quantity per shipping (inner) case	3 stuk(s)
Shipping (inner) case net weight	9750 g
Shipping (inner) case length	529 mm
Shipping (inner) case width	296 mm
Shipping (inner) case weight	13706.4 g
Power over Ethernet (PoE)
Power over Ethernet (PoE)	N
Other features
Connectivity technology	Wired
Input voltage	100 - 240 V
Input frequency	50/60 Hz
Packet transfer speed	65.48 Mpps
Networking features	Gigabit Ethernet