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-3426P 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 fiber 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-3426P 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.

Includes:: 24 x 1 Gbps ports

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

D-Links DSN-6000 Series i SCSI SAN array is a fully redundant, data center-class network storage solution in a 2U rackmount form factor. The DSN-6000 Series currently supports 36TB of raw capacity using 3TB drives (and even greater capacity as larger disk drives become available), & overall scalability to 180TB using DSN-6020 Expansion Enclosure. D-Links DSN-6000 Series provides 1GE or 10GE host interface connectivity which can handle over 200, 000 I/O per second. The DSN-6000 Series integrates x Stack storage architecture & supports services for applications demanding high throughput, scalability & flexible storage planning. The DSN-6000 Series can be easily implemented as primary storage, as secondary storage to supplement an existing infrastructure, or as a nearline storage device to improve backup & recovery times. Using the intuitive & integrated management GUI, the DSN-6000 Series Arrays can be seamlessly incorporated in both Physical & Virtual Server environments. The DSN-6000 Series can provide the failover & redundancy capabilities required for mission critical scenarios such as Virtual Machine (VM) shares, database hosting, Online Transactional Processing (OLTP), email applications, storage consolidation & other primary storage needs. It is equipped with fully redundant components for all major functions, such as RAID controllers, power supplies, fan modules, battery backup modules, & SAS JBOD expansion ports. The Hot-pluggable design is capable of providing uninterrupted services. In addition, the DSN-6000 Series incorporates advanced high availability features such as RAID 6 & RAID 60 support, writable snapshot, Microsoft Windows VSS support, & volume configuration restoration. These advanced features help to reduce or eliminate any system downtime. Unlike other vendors, D-Links DSN-6000 Series is able to upgrade to firmware without the system going offline. Both firmware image & volume handling are well protected by the redundant RAID controllers; when one RAID controller is down or has lost connection, the other RAID controller takes over its tasks immediately. This feature ensures that volumes & services are transferred seamlessly & simultaneously. The optimized Input/ Output Operations per second & unparalleled throughput are capable of providing run-time critical online services, such as Cloud storage, SQL, Exchange, & high-end surveillance storage. Furthermore, with its i SCSI interface, D-Links DSN-6000 Series is ideal for virtualization environments
- VMWare, Hyper-V, & Citrix. System administrators can install up to 32 Operating Systems onto the i SCSI system through the Boot-from-SAN functionality. With this feature, the multiple Operating Systems/ Servers can be easily managed & protected by D-Link advanced data protection features, avoiding system downtime caused by single points of failure. The capacity of the DSN-6000 Series storage arrays can be easily expanded with the addition of the DSN-6020 Expansion Enclosure, which supports up to 12 SAS & SATA hard drives. Up to 4 DSN-6020 enclosures can be mounted in a storage array to expand the overall capacity to 180TB, & even higher capacity as larger hard drives are introduced.
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With the latest firmware installed, you will be able to turn off the routers wireless signal altogether at certain times of the day, to save energy & use the USB (Universal Serial Bus) port to share a printer or a memory stick on the network (Share Port). The DIR-655 Wireless N Gigabit Router connects to any modem or ISP box to provide Internet access for computers & other network equipment. It is an advanced device that features 802.11n (Draft 2.0) technology, thus incorporating 300 Mbps wireless performance with extended coverage & no dead spots. Gigabit Ethernet connectivity is included on both LAN & WAN networks. This router, with its Quality of Service feature, automatically detects if audio, video or gaming content is being transmitted over the network & gives these applications priority over less time-sensitive traffic such as email or file transfers. Setting the router up is easy even for non-technically minded people, with D-Link Clickn Connect: run directly from the product CD-ROM, this wizard takes you through an interactive step-by-step guide that will get you on-line in a matter of minutes. It also

Includes:: a simplified method of setting up wireless encryption, the Wi Fi Wireless Protect Setup (WPS), which works at the touch of a button. A powerful dual firewall (SPI & NAT) prevents Denial of Service (Do S) attacks & attempts to breach your network from the Internet. You can also define a list of allowed sites to restrict web access during certain periods. Please note: networking components such as switches, routers, UPS & 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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Upgrade your computer's Wi-Fi & access the Internet quickly & easily from anywhere in your home or office. This adapter delivers high performance wireless networking to a notebook via the ultra-fast Express Card interface. Express Card also has lower power requirements than the legacy Card Bus. Wireless N technology offers more speed, extended coverage & virtually no dead spots while still compatible with previous network standards. This adapter transfers data at speeds of up to 300 Mbps. The DWA-643 supports WEP, WPA & WPA2 encryption methods &

Includes:: a configuration utility to find available wireless networks & show quality/signal strength. No experience required, simply insert the enclosed CD into your computer & the installation wizard will do the rest.

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Upgrade your computer's Wi-Fi & access the Internet quickly & easily from anywhere in your home or office. This adapter delivers high performance wireless networking to a desktop PC via the ultra-fast PCI Express (PCIe) interface. Wireless N technology offers more speed, extended coverage & virtually no dead spots while still compatible with previous network standards. This adapter transfers data at speeds of up to 300 Mbps. The DWA-556 supports WEP, WPA & WPA2 encryption methods &

Includes:: a configuration utility to find available wireless networks & show quality/signal strength. No experience required, simply insert the enclosed CD into your computer & the installation wizard will do the rest. Please note: networking components such as switches, routers, UPS & 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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