D-LINK DGS-3426 24 Port 1000BaseT Layer2 Stackable Switch+2Slots fr 10Gbps Uplnk

DGS-3426
24-Port Gigabit L2+ Stackable Switch With 4 Combo SFP & 2 10GE Module Slots
xStack 24-Port Gigabit L2+ Stackable Switch with 4 Combo SFP & 2 10GE Module Slots

Product Features
24 Gigabit Ports Per Switch
4 Combo SFP Fiber Gigabit
2 Open Slots for Optional 10-Gigabit Uplinks
Virtual Stack or Physical High-Speed Stacking
Enhanced L2+ With Static Routing, Multi-Layer ACL and QoS
Malicious Traffic and Performance Degradation Prevention
Product Description
The xStack DGS-3426 next generation switch delivers performance, flexibility, security, multi-layer Quality of Service (QoS) and redundant power option for the SMB and enterprises. With high Gigabit port densities for desktop connections, SFP fibre connectivity, 10-Gigabit uplink options and 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 and centralized servers.

The DGS-3426 can operate as a stand-alone device or part of a scalable stack. Embedded with Single IP Management capability, a stand-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 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.

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 20Gbps full duplex transmission on the cost-effective coaxial cable, the DGS-3426 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-3426 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, Layer 3 IP v.4/v.6 Static Routing and IP v.6 Tunnelling* to increase network performance and security. To ensure that not only proper user access is served, but also malicious traffic within the network is prevented, the DGS-3426 includes a Health Check mechanism that provides pro-active network security without the need for manual intervention from the administrator.***

The DGS-3426 provides extensive VLAN support including GARP/GVRP, 802.1Q and asymmetric VLAN to enhance security and performance. To support converged applications including VoIP, ERP, Intranet and videoconference, a robust set of L2/L3/L4 QoS/CoS features ensures that critical network services are served with proper priority. With Multi-layer L2/L3/L4 bandwidth control and D-Link Safeguard Engine, the DGS-3426 can set limits to traffic flows from the edge of the network while automatically prevents broadcast packets and bulk traffic generated by Internet DoS-related activities from utilizing the switch's CPU resources. This prevention of unnecessary and harmful traffic can increase the overall network serviceability, reliability and availability of the stack.

Optional 10Gigabit Uplink Modules
DEM-410X 1-slot 10Gigabit XFP uplink module
DEM-410CX 1-port 10Gigabit CX4 uplink module

Optional 10Gigabit XFP Transceivers
DEM-421XT XFP transceiver for 10GBASE-SR, multimode fiber, max. 300 m, 3.3/5V
DEM-422XT XFP transceiver for 10GBASE-LR, single- mode fiber, max. 10 km, 3.3/5V

Optional SFP Transceivers
DEM-310GT SFP transceiver for 1000BASE-LX, single-mode fiber, max. 10 km, 3.3V
DEM-311GT SFP transceiver for 1000BASE-SX, multi-mode fiber, max. 550 m, 3.3V
DEM-312GT2 SFP transceiver for 1000BASE-SX, multi-mode fiber, max. 2 km, 3.3V

Optional Redundant Power Supply
DPS-500 140-watt redundant power supply
DPS-800 2-slot redundant power supply chassis
DPS-900 8-slot redundant power supply chassis

* Star stacking available in future; other functions available in future firmware upgrade.
** Calculation based on 12 units of DGS-3426 stacked in the Ring Topology.
*** Health Check ZoneDefense operates in conjunction with D-Link NetDefend firewalls.