The DGS-3120 x Stack 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 & enhanced security, making them an ideal Gigabit access layer solution. They are equipped with an SD Card slot, allowing the user to boot images & upload configuration files directly from an SD Card. The DGS-3120 Series is embedded with two different software images
- Standard Image (SI) & Enhanced Image (EI). The Standard Image provides sophisticated features for small & medium businesses, including advanced Quality of Service (Qo S), traffic shaping, L2 multicasting, & robust security features. The Enhanced Image supports ERPS, Double VLAN (Q-in-Q), Ethernet OAM, Static Route, IMPB, s Flow, IPv 6 features which are suitable for the next generation IPv 6 networks or triple play applications in Metro Ethernet. The DGS-3120 Series targets small & medium businesses that require a high level of network security & 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 & Multiple Spanning Tree, Loopback Detection, & 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 & 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 & Packet Content Access Control Lists (ACL), Storm Control, & 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 & 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 & saving them to the IMPB white list. In addition, the D-Link Safeguard Engine identifies & prioritizes "CPU interested" packets to prevent malicious traffic from interrupting normal network flows, & to protect switch operation. The DGS-3120 Series supports authentication mechanisms & 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 Qo S/ Co S features to ensure that critical network services like Vo IP, video conference, IPTV & 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) & increase service availability. Ethernet OAM features address these challenges & enable service providers to offer carrier-grade services. The DGS-3120 Series supports industry-standard OAM tools, including IEEE 802.3ah, IEEE802.1ag, & ITU-T Y.1731. Connectivity Fault Management (CFM) provides tools to monitor & troubleshoot end-to-end Ethernet networks, allowing service providers to check connectivity, isolate network issues, & identify customers affected by network issues. The DGS-3120 Series is fully compliant with the future IPv 6 networks. It supports IPv 6-based security functions to protect the network from illegal IPv 6 clients. The DGS-3120 Series has been certified with IPv 6 Ready Logo Phase 2 from the IPv 6 forum, a worldwide IPv 6 advocacy consortium. Please note: networking components such as switches, routers & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.
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The x Stack DGS-3420 series of next generation Layer 2+ Gigabit switches delivers performance, flexibility, security, multi-layer Qo S, and accessibility, along with redundant power solutions for SMBs & enterprises. With high Gigabit port densities, Gigabit SFP, 10-Gigabit SFP+ support, and advanced software solutions, these switches can act as either departmental access layer devices or aggregation switches to form a multilevel network structured with backbone & centralized high-speed servers. ...

The x Stack DGS-3420 series of next generation Layer 2+ Gigabit switches delivers performance, flexibility, security, multi-layer Qo S, and accessibility, along with redundant power solutions for SMBs & enterprises. With high Gigabit port densities, Gigabit SFP, 10-Gigabit SFP+ support, and advanced software solutions, these switches can act as either departmental access layer devices or aggregation switches to form a multilevel network structured with backbone & centralized high-speed servers. ...

The x Stack DGS-3420 series of next generation Layer 2+ Gigabit switches delivers performance, flexibility, security, multi-layer Qo S, and accessibility, along with redundant power solutions for SMBs & enterprises. With high Gigabit port densities, Gigabit SFP, 10-Gigabit SFP+ support, and advanced software solutions, these switches can act as either departmental access layer devices or aggregation switches to form a multilevel network structured with backbone & centralized high-speed servers. ...

The x Stack DGS-3420 series of next generation Layer 2+ Gigabit switches delivers performance, flexibility, security, multi-layer Qo S, and accessibility, along with redundant power solutions for SMBs & enterprises. With high Gigabit port densities, Gigabit SFP, 10-Gigabit SFP+ support, and advanced software solutions, these switches can act as either departmental access layer devices or aggregation switches to form a multilevel network structured with backbone & centralized high-speed servers. ...

The x Stack DGS-3427 next generation switch delivers performance, flexibility, security, multi-layer Quality of Service (Qo S) & redundant power option for the SMB & enterprises. With high Gigabit port densities for desktop connections, SFP fibre connectivity, 10-Gigabit uplink options & enhanced Layer 2+ functions, this switch comprises the workgroup access-layer stack for seamless integration with L3 core switches to form part of a multilevel network structured with high-speed backbone & centralized servers. The DGS-3427 can operate as a st&-alone device or part of a scalable stack. Embedded with Single IP Management capability, a st&-alone switch can form part of a virtual stack, where intra-stack traffic flows through the usual network wires, doing away with the costly stacking cables. Without stacking cables, cable distance barriers & physical stacking limitations, a virtual stack can comprise units that are located anywhere on the network that minimizes the impact of any single point of failure. Alternatively, optional 10-Gigabit modules can be installed in the open slots to create a physical stack. Up to 12 units or 288 Gigabit ports can be configured for a stack. Users can install one or two single-port modules, depending on whether the fault-tolerant Ring or Star stacking is implemented. With each of these ports providing 20 Gbps full duplex transmission on the cost-effective coaxial cable, the DGS-3427 provides not only high-bandwidth stacking but also cost control capability that allows users to add ports strictly on a per need basis. Modules with single 10-Gigabit XFP can also be installed in any of the open slots for uplink to a server or a fibre backbone. The DGS-3427 provides a complete set of security features, which

Includes:: L2/L3/L4 multi-layer Access Control Lists & 802.1x user authentication via TACACS+ & RADIUS servers. In addition, it offers suppression capabilities, Layer 3 IP v.4/v.6 Static Routing & IP v.6 Tunnelling 1 to increase network performance & security. To ensure that not only proper user access is served, but also malicious traffic within the network is prevented, the DGS-3427

Includes:: a Health Check mechanism that provides pro-active network security without the need for manual intervention from the administrator. The DGS-3427 provides extensive VLAN support including GARP/GVRP, 802.1Q & asymmetric VLAN to enhance security & performance. To support converged applications including Vo IP, ERP, Intranet & videoconference, a robust set of L2/L3/L4 Qo S/ Co S features ensures that critical network services are served with proper priority. With Multi-layer L2/L3/L4 bandwidth control & D-Link Safeguard Engine, the DGS-3427 can set limits to traffic flows from the edge of the network while automatically prevents broadcast packets & bulk traffic generated by Internet Dos-related activities from utilizing the switchs CPU resources. This prevention of unnecessary & harmful traffic can increase the overall network serviceability, reliability & availability of the stack.



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With 12 SFP slots, the DGS-3612G provides a full fibre environment for long distance Ethernet infrastructure. It is particularly suitable for ISPs in their Metropolitan Area Network (MAN) deployments. In addition, four 1000 Base-T copper ports acting as combo with 4 of the SFP slots are included for flexibility. With D-Link Single IP Management (SIM) technology, up to 32 switch units -regardless of the model- may be combined in a virtual stack. Multiple switches can be configured, monitored & maintained from any workstation running a web browser via a single IP address. The stack is managed as a single object, as all stacked units are identified by this single IP address. A simple yet powerful web-based interface allows the administrator to perform most management & configuration tasks. The DGS-3612G

Includes:: advanced routing features, such as OSPF v 2, Passive Interface, Not-So-Stubby Area (NSSA), Equal Cost Route & RIP. Multicast services such as IP-TV & Video on Demand (Vo D) are supported with the inclusion of protocols such as IGMP, MLD & PIM. With Double VLAN (802.1Q-in-Q) support, ISPs can create Layer 2 Virtual Private Networks (VPNs) & transparent LANs for their customers.A complete set of security features is provided for connectivity & access control. These include Access Control Lists (ACLs) based on MAC address, switch port, IP address and/or TCP/UDP port numbers. 802.1X Authentication & MAC address control functionality is furthermore featured. The switch also provides central management for administration access via TACACS/TACACS+ & RADIUS. In addition, when implemented in conjunction with a D-Link Net Defend firewall, this switch is able to automatically quarantine any host displaying abnormal behaviour. This mechanism, D-Links Zone Defense, provides proactive network security by preventing viruses from spreading through the network & thwarting harmful network attacks. The DGS-3612G switch provides VLAN support including GARP/GVRP, 802.1Q & Guest VLAN to enhance network security & performance. The Guest VLAN feature assigns the user to a " Guest VLAN" dynamically if the user does not login on the RADIUS server. If authentication is successful the user will be assigned to the VLAN that is associated with the login information. The switch implements a robust set of multi-layer (L2, L3, L4) Qo S/ Co S features to ensure that critical network services like Vo IP, ERP, Intranet & video conference are prioritized. Bandwidth control allows administrators to set traffic limits on each port, ensuring a committed level of service for end users. For advanced applications, per-flow bandwidth control allows easy fine-tuning of service types based on specific IP addresses or protocols. In addition, a unique feature, D-Link Safeguard Engine, allows administrators to configure thresholds that limit the impact of packet flooding to the switches CPU typically caused by virus/worm outbreaks. This increases the switchs reliability, serviceability & availability.

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IPv 6 & IPv 4 routing The x Stack DGS-3620 series provides IPv 4 networks with a simple migration path to IPv 6 & protects your investment for future network upgrades when greater security & larger addressing are required. Basic static routing such as RIP & RIPv 2 are supported for small network routing applications. Advanced routing protocols such as OSPF & equal cost routing are supported for load balancing & building a scalable network. Stackable up to 12 units Under stacking mode, the switch is hot-swappable. This means that in a stack configuration, any of the switches can be replaced or removed without affecting the network. There is no need to reconfigure a replacement switch, just give the new switch the same stack number ID as the old switch & the network will carry the same configuration as before. This minimizes network downtime & maximizes the productivity of your business. Also, to facilitate network administration, cross stack port mirroring & port trunking are supported. The D-Link Safeguard Engine & security The DGS-3620 series incorporates advanced mechanisms to detect an attack against the central processing unit of the switch & to take corrective action on the attacking interface. When a Do S attack is waged against the DGS-3620 switch, the D-Link Safeguard Engine detects the threat & prevents overload of the CPU, thus ensuring network integrity & helping to maintain open network bandwidth channels. In addition, the x Stack DGS-3620 series offers a variety of authentication methods, including those without the requirement of a RADIUS server. It supports MAC-based access control, which authenticates the user based on the MAC address of the client so that authentication is transparent to the client. It also supports web-based access control, which prompts for username & password before allowing access to TCP traffic. Lastly, the x Stack series supports Network Access Protection (NAP). Voice & video applications For today's businesses, having voice, data, and video on the same network is common practice. This challenge is met by the x Stack DGS-3620 series, which supports 802.1p with eight queues. The administrator can designate traffic priority based on a variety of means including IP & MAC address, so that voice data is clear & jitter-free. Video traffic can also be assigned with the same priority. In addition, the x Stack DGS-3620 series provides IGMP snooping, which allows the forwarding of multicast packets such as streaming audio & video without increasing network broadcast congestion. Ease of management The x Stack DGS-3620 series supports SNMP v 1/2c/3 so traps can be set on abnormal events & information can be polled to maximize network productivity. Other standard management features also supported include RMON & IEEE 802.1D Spanning Tree. User interfaces include an intuitive web-based GUI or standard CLI, either of which can be protected through SSL or SSH encryption. Main Specifications
- Product Description: D-Link x Stack DGS-3620-28TC
- switch
- 24 ports
- Managed
- desktop
- Device Type: Switch
- 24 ports
- L3
- Managed
- stackable
- Enclosure Type: Desktop 1U
- Subtype: Gigabit Ethernet
- Ports: 20 x 10/ 100/ 1000 + 4 x combo Gigabit SFP + 4 x 10 Gigabit SFP+
- Performance: Switching capacity:128 Gbps Forwarding performance:95.24 Mpps
- MAC Address Table

Size: 32K entries
- Jumbo Frame Support: 13000 bytes
- Routing Protocol: OSPF, RIP-1, RIP-2, IGMPv 2, IGMP, VRRP, OSPFv 2, PIM-SM, PIM-DM, IGMPv 3, PIM-SSM, policy-based routing (PBR), Bidirectional Forwarding Detection (BFD)
- Remote Management Protocol: SNMP 1, RMON 1, RMON 2, Telnet, SNMP 3, SNMP 2c, TFTP, CLI
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Features: Flow control, full duplex capability, BOOTP support, trunking, VLAN support, IGMP snooping, Syslog support, port mirroring, Broadcast Storm Control, IPv 6 support, SNTP support, s Flow, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, Trivial File Transfer Protocol (TFTP) support, Access Control List (ACL) support, Quality of Service (Qo S), DHCP server, MLD snooping, Uni-Directional Link Detection (UDLD), LLDP support, Link Aggregation Control Protocol (LACP), Remote Switch Port Analyzer (RSPAN)
- Compliant Standards: IEEE 802.3, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1v
- Power: AC 120/ 230 V (50/ 60 Hz )
- Dimensions: (Wx Dx H) 44.1 cm x 31 cm x 4.4 cm
- Weight: 4.1 kg
- Manufacturer Warranty: Limited lifetime warranty



























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The DGS-3620 Series x Stack L3 Managed Stackable Gigabit Switches deliver great performance
- flexibility
- security
- multi-layer


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D-Links 15-bay i SCSI SAN Array provides an entry-level, value-oriented solution for SMB customers. By fully integrating with ...