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D-Link xStack DGS-3120-48PC Switch Managed Product Description
The DGS-3120 Series is embedded with two different software images - Standard Image (SI) and Enhanced Image (EI). The Standard Image provides sophisticated features for small and medium businesses, including 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.
The DGS-3120 Series targets small and medium businesses that 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 Spanning Tree, Rapid Spanning Tree and Multiple Spanning Tree, Loopback Detection, and Broadcast Storm Control, which enhance network resilience. The Ethernet Ring Protection Switching (ERPS) function minimizes the recovery time in case of a loop failure. For load sharing and redundancy backup in switch cascading/server attachment configuration, the DGS-3120 Series provides dynamic port trunking.
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.
The DGS-3120 Series supports authentication mechanisms and security policies that can be applied individually to each connected host. In addition, the switch also supports Microsoft NAP (Network Access Protection). NAP is a policy enforcement technology that allows administrators to protect network assets from unhealthy computers by enforcing compliance with network health policies.
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.
To uphold users' 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.
The DGS-3120 Series is fully compliant with the future IPv6 networks. It supports IPv6-based security 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.
Add-ons and Accessories
Xenta Cat 5 Cables
£3.33 ex. vat
£4.15 ex. vat
£6.44save £0.46 £4.98 ex. vat
Xenta Cat 6 Cables
£5.34save £1.34 £3.33 ex. vat
£4.98save £0.98 £3.33 ex. vat
£7.02save £0.03 £5.82 ex. vat
£9.98save £4.00 £4.98 ex. vat
Belkin Cat 6 Cables
£12.66 ex. vat
Expansion / Connectivity
|Interfaces||1 x network stack device x 2 ¦ 48 x 10Base-T/100Base-TX/1000Base-T - RJ-45 PoE ¦ 1 x console - RJ-45 management ¦ 4 x SFP (mini-GBIC)|
|Expansion Slot(s)||1 (total) / 1 (free) x SD Memory Card|
|Expansion Slots||1 (total) / 1 (free) x SD Memory Card||
|Power Device||Internal power supply|
|Voltage Required||AC 120/230 V (50 - 60 Hz)|
|Features||Redundant Power System (RPS) connector||
|Cables Included||1 x console cable|
|Rack Mounting Kit||Included|
|Compliant Standards||FCC Class A certified, C-Tick, cUL, VCCI Class A ITE, CB, IC, RoHS||
|Jumbo Frame Support||13000 bytes|
|Performance||Switching capacity: 136 Gbps ¦ Forwarding performance (64-byte packet size): 101.2 Mpps|
|Capacity||ACL rules: 1500 ¦ QoS hardware queues: 8|
|Device Type||Switch - 48 ports - Managed - stackable|
|Ports||44 x 10/100/1000 + 4 x combo SFP|
|Power Over Ethernet (PoE)||PoE|
|MAC Address Table Size||16K entries|
|Max Units In A Stack||32|
|Remote Management Protocol||SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, SSH-2, CLI|
|Encryption Algorithm||SSL, SSL 3.0, SSL 2.0|
|Authentication Method||RADIUS, TACACS+, Secure Shell v.2 (SSH2)|
|Features||Flow control, Layer 2 switching, DHCP support, BOOTP support, ARP support, VLAN support, IGMP snooping, port mirroring, DiffServ support, Weighted Round Robin (WRR) queuing, Broadcast Storm Control, IPv6 support, Multicast Storm Control, SNTP support, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, Access Control List (ACL) support, Quality of Service (QoS), Jumbo Frames support, DHCP server, MLD snooping, Safeguard Engine, Network Access Protection (NAP), D-Link Green Technology|
|Compliant Standards||IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1v, IEEE 802.1ag, IEEE 802.3at|
|Flash Memory||32 MB||
Software / System Requirements
|Software Included||Standard Image (SI) Software||
Dimensions & Weight
|Min Operating Temperature||0 °C|
|Max Operating Temperature||50 °C|
|Humidity Range Operating||5 - 95% (non-condensing)|
|Min Storage Temperature||-40 °C|
|Max Storage Temperature||70 °C|
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