The DGS-3120 24-Port xStack L2 Managed Stackable PoE Gigabit Switch from D-Link is an enhanced L2 stackable switch designed to connect end-users in a secure SMB or enterprise network. This switch support physical stacking, multicast and enhanced security, making it an ideal Gigabit access layer solution for any network. The DGS-3120-24PC switch is embedded with two different software images - Standard Image and Enhanced Image.
The DGS-3120-24PC provides 20 10/100/1000 Mbps Gigabit Ethernet ports and 4 combo 1000BASE-T/SFP Gigabit Ethernet ports. It provides 24 10/100/1000 Mbps PoE Gigabit Ethernet ports and 4 combo 1000BASE-T/SFP Gigabit Ethernet ports. Each10/100/1000 Mbps port of DGS-3120-24PC supports 802.3af and 802.3at Power over Ethernet standard.
The default power budget is 370W and can be expanded to 740W with the DPS-700 RPS. The switch is also equipped with an SD Card slot, allowing the user to boot images and upload configuration files directly from an SD Card. Furthermore, syslog files can also be conveniently saved to a card.
Standard and Enhanced Images
The DGS-3120 is available with two different software images - Standard Image and Enhanced Image. The Standard Image provides sophisticated features for campus, or enterprise. It includes advanced quality of service, traffic shaping, L2 multicasting and robust security features. The Enhanced Image supports ERPS, Double VLAN, Ethernet OAM, Static Route, IMPB, sFlow, IPv6 features which are suitable for the next generation IPv6 networks or triple play applications in Metro Ethernet.
Enhanced Network Reliability
The DGS-3120 targets enterprise and customers who require a high level of network security and maximum uptime. It supports an external redundant power supply so that continued operation can be assured. Also includes other features, such as 802.1D Spanning Tree, 802.1w Rapid Spanning Tree and 802.1s Multiple Spanning Tree, Loopback Detection and Broadcast Storm Control, that enhance network resilience. The G.8032 Ethernet Ring Protection Switching function minimizes the recovery time to 50 ms. For load sharing and redundancy backup in switch cascading/server attachment configuration, the DGS-3120 provides dynamic 802.3ad Link Aggregation Port Trunking.
Comprehensive Security
The DGS-3120 provides users with the latest security features such as Multi-layer and Packet Content Access Control Lists, Storm Control, and IP-MAC-Port Binding with DHCP Snooping. The IP-MAC-Port Binding feature allows administrators to bind a source IP address with an associated MAC and 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 and saving them to the IMPB white list. In addition, the D-Link Safeguard Engine identifies and prioritizes CPU interested packets to prevent malicious traffic from interrupting normal network flows, and to protect switch operation.
Identity Driven Network Policies
The DGS-3120 supports authentication mechanisms such as 802.1X, web-based Access Control and MAC-based Access Control for strict access control and easy deployment. After authentication, individual policies such as VLAN membership, QoS policies, and ACL rules can be assigned to each host. In addition, the switch also supports Microsoft NAP. NAP is a policy enforcement technology that allows customers to protect network assets from unhealthy computers by enforcing compliance with network health policies.
Traffic Management for Triple Play
The DGS-3120 implements a rich set of multilayer QoS/CoS features to ensure that critical network services like VoIP, video conference, IPTV and 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. Host-based IGMP/MLD Snooping allows multiple multicast subscribers per physical interface and ISM VLAN sends multicast streams in a multicast VLAN to save bandwidth and to provide better security to the backbone network. The ISM VLAN profiles allow users to bind/replace the pre-defined multicast registration information to subscriber ports quickly and easily.
Proactive, Effective Network Management
To uphold enterprise customers' Service Level Agreements, service providers must reduce the Mean Time to Repair and increase service availability. Ethernet OAM features address these challenges and enable service providers to offer carrier-grade services. The DGS-3120 supports industry-standard OAM tools, including IEEE 802.3ah, IEEE802.1ag, and ITU-T Y.1731. Connectivity Fault Management provides tools to monitor and troubleshoot end-to-end Ethernet networks, allowing service providers to check connectivity, isolate network issues and identify customers affected by network issues.
IPv6 Technology
The DGS-3120 is fully compliant with the future IPv6 networks. It supports remote IPv6 manageability from telnet, HTTP, or SNMP. To create secure IPv6 networks, the DGS-3120 uses IPv6 ACL, DHCPv6 Snooping and Neighbor Discovery Snooping functions to protect the network from illegal IPv6 clients. The DGS-3120 has been certified with IPv6 Ready Logo Phase 2 from the IPv6 forum, a worldwide IPv6 advocacy consortium. The IPv6 Ready Logo Program provides conformance and interoperability of IPv6 products.
Green Technology
D-Link is striving to take the lead in developing innovative and power-saving technology that does not sacrifice operational performance or functionality. The DGS-3120 implements the Green Technology, which includes a power saving mode, smart fan, reduced heat dissipation and cable length detection. The power saving feature automatically powers down ports that have no link or link partner. The Smart Fan feature allows for the built-in fans to automatically adjust their speed at a certain temperature, providing continuous, reliable and eco-friendly operation of the switch.
Manageability
Single IP Management simplifies and speeds up management tasks, allowing multiple switches to be configured, monitored and maintained from any workstation running a web browser through one unique IP address. This virtual stack is managed as a single object, having all units maintained by one IP address. The DGS-3120 also supports standard-based management protocols such as SNMP, RMON, Telnet, Console, Web-based GUI and SSH/SSL security authentication.