The DGS-1210-52 supports 802.1X port-based authentication, allowing the network to be authenticated through external RADIUS servers. In addition, with bandwidth control, network administrators can reserve bandwidth for important functions that require higher priority or more bandwidth.ĭ-Link’s innovative Safeguard Engine protects the switches against traffic flooding caused by malicious attacks. As a result, these voice and video packets take precedence over other packets. The Differentiated Service Code Point (DSCP) markings on Ethernet packets enable different levels of service to be assigned to network traffic. With higher priority and an individual VLAN, these features guarantee the quality and security of VoIP traffic. Auto Voice VLAN technology enhances the VoIP service by automatically placing voice traffic from IP phones to a designated VLAN. ASV also ensures quality real-time video monitoring and control without compromising the transmission of conventional network data. Auto Surveillance VLAN is a new, industry-leading technology that consolidates data and surveillance video transmission through a single DGS-1210-52 switch, thus sparing businesses the expense of dedicated hardware and facilities. The DGS-1210-52 supports Auto Surveillance VLAN (ASV) and Auto Voice VLAN, which are best suited for VoIP and video surveillance deployments. Loopback detection significantly speeds up troubleshooting by automatically detecting and shutting down switching loops.The cable diagnostics feature, designed primarily for administrators and customer service representatives, determines the cable quality and quickly discovers errors, allowing for hassle-free diagnostics and maintenance. Network maintenance features include loopback detection and cable diagnostics. At 2000 Mbps full-duplex, the Gigabit ports provide high-speed data pipes to servers with minimum impact to data transfer fidelity. The IEEE 802.3x flow control function allows servers to directly connect to the switch for fast, reliable data transfers. The DGS-1210-52 comes equipped with a complete lineup of L2 features, including IGMP snooping, port mirroring, Spanning Tree Protocol (STP), and Link Aggregation Control Protocol (LACP). The DGS-1210-52 takes the approach to green IT one step further by incorporating a special chipset with advanced silicon technology for efficient use of energy.Įxtensive Management and Layer 2 Features Link status drastically reduces power consumption by automatically toggling ports without a link into a sleep mode. The bundled loopback plug will not work if the DIP switches are configured for RS-485.Incorporating D-Link’s Green technology, the DGS-1210-52 switch is capable of saving power without sacrificing operational performance or functionality. an MEI model), they must be configured for RS-232 or RS-422. Note: If the Digi device has serial DIP switches (i.e. To disconnect from telnet, issue -] and type quit at the telnet prompt. Any data typed in the telnet session will be echoed on the screen. For port number 1, use 2001 for port number etc. Where 20# represents the default TCP port number. To disconnect from the port, type: Ctrl-, and r epeat the procedure for any other ports which need testing (don't forget to move the Loopback plug to the port you're testing!)Īlternate method with Reverse Telnet session:Īlternatively, this can also be tested using reverse telnet to the TCP socket of the port directly, by issuing the following command from either the DOS/Unix prompt or the Digi unit command prompt: If you remove the loopback plug from the port and keep typing, you should not see any data on your screen. The characters you type should echo back and be displayed on your PC monitor (once). Start typing characters on your keyboard. Enter connect 1 ( one) to connect to the first serial port. From the CLI prompt, set the port to a printer device type (we use port 1 in our example):ĥ. Login at the commandline interface (CLI). HOW TO: Access and capture output from the CommandLine Interface (CLI) of a Digi network-connected product using Telnet or SSHģ. If additional information is needed on how to use or where to get a Telnet client, please refer to this article: From the Windows CMD or a Unix/Linux "root" prompt, telnet (or SSH) to the IP address of the Digi device server. A loopback plug is generally shipped with Digi products which can use them, but if you need to make one, please see the following article:Ģ. Plug a Loopback Plug into the serial port to be tested. Loopback Testing on Device or Terminal Servers Using Connectġ.
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