x Stack L2+ Managed Stackable Gigabit Switches The x Stack DGS-3420 series of next generation Layer 2+ Gigabit switches delivers performance, flexibility, security, multi-layer Qo S, & accessibility, along with redundant power solutions for SMBs & enterprises. With high Gigabit port densities, Gigabit SFP, 10-Gigabit SFP+ support, & 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. Service providers can take advantage of the high SFP density switches (such as DGS-3420-28SC/26SC) to structure the aggregation of Fiber to the Building (FTTB) networks that are extended to the subscribers′ sites. Unparalleled Flexibility Easily deployed & simple to manage, the DGS-3420 can be stacked with any switch that supports D-Link′s Single IP Management to form a multi-level network structured with backbone & centralized high-speed servers. The virtual stack can include units located anywhere on the same network domain, & uses optional 10-Gigabit uplinks to move intra-stack traffic at 20 Gbps full duplex speeds. Redundant Ring Stacking Alternatively, depending on whether linear or faulttolerant ring stacking is implemented, users can use one or two 10-Gigabit SFP+ ports to create a physical stack. 12 units or 576 Gigabit ports can be configured for a stack using direct attach cables to provide high bandwidth on the DGS-3420 Series with cost efficiency. Security, Performance & Availability The DGS-3420 Series provides a complete set of security features including L2/L3/L4 multi-layer Access Control Lists & 802.1X user authentication via TACACS+ & RADIUS servers. The DGS-3420 Series offers extensive VLAN support including GVRP & 802.1Q VLAN to enhance security & performance. A robust set of L2/L3/L4 Qo S/ Co S solutions help ensure that critical network services such as Vo IP, ERP, Intranet, & video conferencing are served with proper priority. The series also provides D-Link′s Safeguard Engine to increase the switch′s reliability, serviceability, & availability to prevent malicious flooding traffic caused by worms or virus infections. Bandwidth Control can be flexibly set for each port using pre-defined thresholds to assure a committed level of service for endusers. For advanced applications, flow-based bandwidth control allows easy fine-tuning of service types based on specific IP addresses or protocols. IPv 6 Technology The DGS-3420 Series also features comprehensive IPv 6 support, including IPv 6 Tunnel, ICMPv 6, DHCPv 6, RIPng, IPv 4/IPv 6 dual stack, & more. With 10-Gigabit connectivity & IPv 6 support, the series enables you to future-proof your network for cost efficiency & longevity while meeting the requirements that future IPv 6-capable network devices require. D-Link Green Technology D-Link is striving to take the lead in developing innovative & power-saving technology that does not sacrifice operational performance or functionality. The DGS-3420 Series implements D-Link Green technology, which
Includes:: power saving through link status, smart fan design, increased heat dissipation, & cable length detection. The power-saving feature automatically powers down ports that have no link or link partner. The Smart Fan design allows the built-in fans to automatically turn on only at a certain temperature, providing continuous, reliable, & eco-friendly operation of the switch.