DGS-1210-28/28P/52/20 – it is a Web Smart switches next-generation technology D-Link Green. These switches support advanced management and security, delivering high performance and scalability. Management options include SNMP-based management Web-interface, utility D-Link Network Assistant, and Compact Command Lines. The DGS-1210-28/28P/52/20 supports Auto Voice VLAN, ensuring higher priority for voice traffic. Model DGS-1210-20/28 equipped with passive cooling system, which ensures quiet operation and helps extend the life of the product. The DGS-1210-28P and DGS-1210-52 in turn has a silent smart fans who are able to change the rotation speed depending on the temperature, which saves energy and reduce costs without impact on performance. Energy saving Using D-Link Green technology, the DGS-1210-28/28P/52/20 is capable of conserving power without sacrificing operational performance or functionality. The switch determines the link status of each port and provides automatic transition of the inactive ports to sleep. Thanks to the chipset used by the DGS-1210-28/28P/52 to reduce considerably the energy consumption. Simple management and layer 2 features These switches support the full set of layer 2 features including IGMP Snooping, Port Mirroring, Spanning Tree and Link Aggregation Control Protocol (LACP). Function flow control IEEE 802.3 x allows you to directly connect servers to the switch for fast, reliable data transfer. Maintaining speed on each port up to 2000 Mbps in full duplex, the Gigabit ports provide the high performance needed to connect jobs with minimal data loss. The switches support function and cable diagnostics function Loopback Detection. The function of Loopback Detection is used to detect loops and automatically disable the port that detected the loop. The cable diagnostics feature is designed to determine the quality of the twisted pair, as well as the type of cable error. QoS, bandwidth management The DGS-1210-28/28P/52/20 supports Auto Surveillance VLAN (ASV) and Auto Voice VLAN, which are the ideal solution for deploying VoIP and video surveillance. Auto Surveillance VLAN is a new, industry-leading technology, built-in switches Smart D-Link. This technology consolidates data and surveillance video transmission through a single Web Smart switch, thus reducing the expense of maintaining equipment. ASV also ensures the quality of viewing real-time video and control without compromising the transmission of conventional network data. The function of automatic detection of connected VoIP equipment allows you to put "voice" traffic to a dedicated VLAN. With higher priority and individual VLAN, this feature guarantees the quality and security of VoIP traffic. In addition, DSCP marks Ethernet packets to be assigned to network traffic of different services. In addition, the function of bandwidth management allows network administrators to reserve bandwidth for a variety of applications that require a larger bandwidth or might have high priority. Network security D-Link's innovative Safeguard Engine protects the switches against traffic flooding caused by virus attacks. Authentication port-based 802.1 X allows you to use an external RADIUS server to authenticate users. In addition, the function of access control lists (ACL) enhances network security and helps to protect your network by filtering traffic from unauthorized MAC-addresses or IP addresses. The switch also supports the prevention of attacks ARP Spoofing, protects from attacks on the Ethernet network that may cause a change in traffic or delay by sending fake ARP messages. To prevent ARP Spoofing attacks, the switch uses Packet Control ACLs to block invalid packets that contain fake ARP messages. To increase security, use the feature DHCP Server Screening, prohibiting access to unauthorized DHCP-servers. Convenient operation Using the SmartConsole1 / D-Link Network Assistant2 allows administrators to remotely control their network down to the port level. Utility D-Link Network Assistant supports automatic detection and display switches the D-Link Web Smart, belonging to the same L2 network segment. Utility provides access to the switch from anywhere on the network without the need to enter IP addresses or subnet mask that allows you to perform setup and basic installation of found devices, including password changes and firmware upgrades. The DGS-1210-28/28P/52/20 also supports D-View 6.0 and a simplified command line interface (CLI) through Telnet. D-View 6.0 is a network management system that allows you to control the most important parameters, such as availability, reliability, flexibility and security. 1 revision B 2 audit C