DGS-3426G is the Layer 2+ member of the D-Link xStack product line.  It comes with 20 SFP ports, supporting a full fiber environment for long distance Ethernet infrastructure which is suitable for MAN (Metropolitan Area Network) and FTTx application.  It also provides 4 combo 10/100/1000Mbps Gigabit Ethernet ports and 2 10G open slots for optional 10GE modules.  The 4 Gigabit Ethernet ports allow seamless connection to other LAN switches, and the 10GE open slots in the back can be plugged with XFP modules for fibre uptlinks or 10GE copper modules for inter-device connection.

Unparalleled Flexibility
DGS-3426G can operate as a stand-alone device or part of a scalable stack. Embedded with Single IP Management capability, a standalone 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 and 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.

Intelligent Layer 2 Switches
The DGS-3426G provides a complete set of security features, which includes L2/L3/L4 multi- layer Access Control Lists and 802.1x user authentication via TACACS+ and RADIUS servers. In addition, it offers suppression capabilities and Layer 3 IPv4/v6 Static Routing to increase network performance and security. Built-in D-Link ZoneDefense technology allows business to integrate the switch stack with D-Link NetDefend firewalls to implement a full coverage, proactive security architecture.

Security, Performance & Availability
The DGS-3426G provides extensive VLAN support including GARP/GVRP and 802.1Q VLAN to enhance security and performance. To support converged applications including VoIP, ERP, Intranet and video conference, a robust set of L2/L3/L4 QoS/CoS features ensures that critical network services are served with proper priority. For prevent malicious flooding traffic caused by worm/virus infections, the DGS-3400 series provides D-Link Safeguard Engine to increase the switch’s reliability, serviceability and availability. Bandwidth Control can be flexibly set for each port using pre-defined thresholds to assure 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.