The DGS-3130 Series switches are Lite Layer 3 Stackable Managed Switches designed to connect end-users in a secure enterprise or metro Ethernet access network. These switches support multicast, and enhanced security, making them an ideal Gigabit access layer solution. Enhanced network reliability The DGS-3130 Series targets enterprises and metro Ethernet applications, and customers who require a high level of network security and maximum uptime. The DGS-3130 Series supports an external redundant power supply to ensure continued operation. The models also include reliability features, such as 802. 1D Spanning Tree (STP),802. 1w Rapid Spanning Tree (RSTP),and 802. 1s Multiple Spanning Tree (MSTP),Loopback Detection (LBD),and Broadcast Storm Control, that enhances network resilience. Comprehensive security The DGS-3130 Series provides users with the latest security features such as Multi-layer and Packet Content Access Control Lists (ACL),Storm Control, and IP-MAC-Port Binding (IMPB) 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. Easy access control policies The DGS-3130 Series supports authentication mechanisms such as 802. 1X, Web-based Access Control (WAC),and MAC-based Access Control (MAC) for strict access control and easy deployment. After authentication, individual policies such as VLAN membership, Qo S policies, and ACL rules can be assigned to each host. In addition, the switch also supports Microsoft NAP (Network Access Versatile traffic management The DGS-3130 Series implements a rich set of multilayer Qo S/Co S features to ensure that critical network services such as Vo IP, video conferencing, IPTV, and IP surveillance are given high priority. Traffic Shaping features guarantee bandwidth for these