Page 1 D-Link ™ DGS-3212SR High-Density Layer 2 Modular Gigabit Ethernet Switch Manual...
Page 2 Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly forbidden. Trademarks used in this text: D-Link, the D-LINK logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.
Page 3: Table Of Contents
CONTENTS D-Link ™ DGS-3212SR............................i Intended Readers..............................vi Typographical Conventions ..........................vi Notes, Notices, and Cautions ..........................vii Safety Instructions..............................vii Safety Cautions ............................. vii General Precautions for Rack-Mountable Products ..................ix Protecting Against Electrostatic Discharge ......................x Introduction................................1 Switch Description ............................1 Features ................................1...
Page 4 Switch IP Settings ..............................26 Security IP Management Stations Configuration ...................28 User Accounts Management ..........................29 Admin and User Privileges ..........................30 Saving Changes..............................30 Factory Reset..............................31 Restart System..............................31 Switch Information............................32 Advanced Settings............................33 Switch Stack Management .............................35 Stacking Information............................35 VLAN Configuration .............................38 Understanding VLANs............................44 Port Settings Configuration............................48 Basic Port Configuration............................48 Link Aggregation Configuration..........................51...
Page 5 SNMP Host Table ............................97 SNMP Engine ID ............................98 System Monitoring and Statistics...........................99 Port Utilization ...............................99 Packets .................................100 Maintenance .................................110 Technical Specifications ............................115 Glossary ................................117...
Page 6: D-Link ™ Dgs-3212Sr
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Intended Readers The DGS-3212SR Manual contains information for setup and management and of the DGS-3212SR switch. This guide is intended for network managers familiar with network management concepts and terminology. Typographical Conventions Convention Description In a command line, square brackets indicate an optional entry.
Page 7: Notes, Notices, And Cautions
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your device. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
Page 8 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch – The power cable, extension cable, or plug is damaged. – An object has fallen into the product. – The product has been exposed to water. – The product has been dropped or damaged.
Page 9: General Precautions For Rack-Mountable Products
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch – Install the power supply before connecting the power cable to the power supply. – Unplug the power cable before removing the power supply. – If the system has multiple sources of power, disconnect power from the system by unplugging all power cables from the power supplies.
Page 10: Protecting Against Electrostatic Discharge
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch NOTE: A qualified electrician must perform all connections to DC power and to safety grounds. All electrical wiring must comply with applicable local or national codes and practices. CAUTION: Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor.
Page 11: Introduction
Management Options Switch Description The DGS-3212SR is a modular Gigabit Ethernet backbone switch designed for adaptability and scalability. The switch provides a management platform and uplink to backbone for a stacked group of eight of DES-3226S Layer 2 switches in a star topology arrangement. Alternatively, the switch can utilize up to twelve Gigabit Ethernet ports to function as a central distribution hub for other switches or switch groups, or routers.
Page 12: Front-Panel Components
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch • Traffic Segmentation • SysLog support • Simple Network Time Protocol • MAC address update notification • Web GUI Traffic Monitoring Front-Panel Components The front panel of the Switch consists of LED indicators, an RS-232 communication port, two slide-in module slots, and four 1000BASE-T/SFP combo ports.
Page 13: Rear Panel Description
The switch includes a digital indicator (labeled STACK NO) to indicate the switch status in a stacked switch group. A “0” indicates the DGS-3212SR is acting as a standalone switch. An “F” indicates the switch is acting in the capacity of a master switch of a stacked group of DES-3226S Layer 2 switches or DES-3326S Layer 3 switches.
Page 14: Plug-In Modules
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Plug-in Modules The DGS-3212SR Switch is able to accommodate optional plug-in modules in order to increase functionality and performance. Two modules may be installed and used in combination with any of the three available modules.
Page 15: Dem 540 Ieee 1394 Stacking Module
OUT port on the next switch in the stack. Restrictions and Cautions for Stacking The DGS-3212SR may serve as the Master of up to eight additional switches. The slave switch units must meet the following criteria: •...
Page 16: Stacking Module Led Indicators
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Spanning Tree Protocol is disabled by default, a broadcast storm will result if the stacking link is completed between switches that have not been properly configured. NOTICE: Do not connect the stacked switch group to the network until you have properly configured all switches for switch stacking.
Page 17: Management Options
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Management Options The system may be managed out-of-band through the console port on the front panel or in-band using Telnet or a web browser. Web-based Management Interface After you have successfully installed the switch, you can configure the switch, monitor the LED panel, and display statistics graphically using a web browser, such as Netscape Navigator (version 6.2 and higher) or...
Page 18: Installation
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 2 Installation Package Contents Before You Connect to the Network External Redundant Power System Connecting the Console Port Password Protection SNMP Settings IP Address Assignment Connecting Devices to the Switch Package Contents Before you begin installing the switch, confirm that your package contains the following items: •...
Page 19: Before You Connect To The Network
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Before You Connect to the Network NOTICE: Do not connect the switch to the network until you have established the correct IP settings. Before you connect to the network, you must install the switch on a flat surface or in a rack, set up a terminal emulation program, plug in the power cord, and then set up a password and IP address.
Page 20: Installing The Switch In A Rack
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Installing the Switch in a Rack You can install the switch in most standard 19-inch (48.3-cm) racks. Refer to the illustrations below. 1. Use the supplied screws to attach a mounting bracket to each side of the switch.
Page 21 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 2-3. Install switch in equipment rack...
Page 22: Connecting Stacked Switch Groups
The instructions below, Configuring a Stacked Switch Group, tell you how to configure the DGS-3212SR to function as a Master, as well as how to configure the DES-3226S/SR and DGS-3212SR to function as slave switch units using the CLI interface.
Page 23: Configuring A Switch Group For Stacking
Configuring a Switch Group for Stacking The Switch Stacking CLI commands are the same for the DGS-3212SR, and the DES-3226S/SR. Follow the instructions below to first configure the slave units, and then to configure the DGS-3212SR as the designated Master.
Page 24 At the time of the writing of this manual, stacking of the DGS-3212SR switches is not supported. The Stack NO. 8-segment LED (as shown below) on the front panel of the DGS-3212SR will always display F (15 in hex). An F will also be displayed in the Stack NO. LED even if the DGS-3212SR is in standalone mode.
Page 25 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch If a stacking module is installed in the DGS-3212SR’s first module slot, then the first IN/OUT pair in the figure above will be port 5. If a DES-3226S/SR in a switch stack is connected to the first stacking port (port number 5 on the DGS-3212SR), then the Unit ID of the DES-3226S/SR will be 5.
Page 26: External Redundant Power System
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch External Redundant Power System The switch supports an external redundant power system. Figure 2-5. DPS-200 with DES-3226S NOTE: See the DPS-200 documentation for more information. CAUTION: Do not use the switch with any redundant power system other than...
Page 27: Connecting The Console Port
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Connecting the Console Port The switch provides an RS-232 serial port that enables a connection to a computer or terminal for monitoring and configuring the switch. This port is a male DB-9 connector, implemented as a data terminal equipment (DTE) connection.
Page 28: Password Protection
Password Protection The DGS-3212SR does not have a default user name and password. One of the first tasks when setting up the switch is to create user accounts. If you log in using a predefined administrator-level user name, you have privileged access to the switch’s management software.
Page 29: Snmp Settings
The DGS-3212SR supports the SNMP versions 1, 2c, and 3. You can specify which version of the SNMP you want to use to monitor and control the switch. The three versions of SNMP vary in the level of security provided between the management station and the network device.
Page 30: Ip Address Assignment
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch IP Address Assignment Each Switch must be assigned its own IP Address, which is used for communication with an SNMP network manager or other TCP/IP application (for example BOOTP, TFTP). The switch’s default IP address is 10.90.90.90.
Page 31: Connecting Devices To The Switch
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 2 - 7. Assigning the Switch an IP Address In the above example, the switch was assigned an IP address of 10.24.22.5 with a subnet mask of 255.0.0.0. The system message Success indicates that the command was executed successfully. The switch can now be configured and managed via Telnet and the CLI or via the Web-based management.
Page 32: Introduction To Switch Management
Restart System Introduction All software functions of the DGS-3212SR can be managed, configured, and monitored via the embedded web- based (HTML) interface. The switch can be managed from remote stations anywhere on the network through a standard browser such as Netscape Navigator/Communicator or Microsoft Internet Explorer. The browser acts as a universal access tool and can communicate directly with the Switch using the HTTP protocol.
Page 33: Web-Based User Interface
Select the menu or window to be displayed. The folder icons can be opened to display the hyperlinked menu buttons and subfolders contained within them. Click the D-Link logo to go to the D-Link website. Presents switch information based on your selection and the entry of configuration...
Page 34: Basic Setup
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch NOTICE: Any changes made to the switch configuration during the current session must be saved in the Save Changes web menu (explained below) or use the command line interface (CLI) command save. Web Pages When you connect to the management mode of the switch with a web browser, a login screen is displayed.
Page 35: Switch Information
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Switch Information Click the Switch Information link in the Configuration menu. Figure 3-3. Switch Information – Basic Settings The Switch Information window shows which (if any) external modules are installed, and the switch’s MAC Address (assigned by the factory and unchangeable).
Page 36: Switch Ip Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Switch IP Settings Switch IP settings may initially be set using the console interface prior to connecting to it through the Ethernet. If the switch IP address has not yet been changed, read the Introduction of the CLI Reference or skip ahead to the end of this section for a quick description of how to use the console port and CLI IP settings commands to establish IP settings for the switch.
Page 37 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Use the Get IP From: <Manual> pull-down menu to choose from BOOTP or DHCP. This selects how the switch will be assigned an IP address on the next reboot. The Switch IP Settings options are:...
Page 38: Security Ip Management Stations Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Setting the Switch’s IP Address using the Console Interface Each Switch must be assigned its own IP Address, which is used for communication with an SNMP network manager or other TCP/IP application (for example BOOTP, TFTP). The switch’s default IP address is 10.90.90.90.
Page 39: User Accounts Management
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch User Accounts Management Use the User Accounts Control Table to control user privileges. To view existing User Accounts, open the Management folder and click on the User Accounts link. This will open the User Account Management page, as shown below.
Page 40: Admin And User Privileges
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch From the Main Menu, highlight Setup User Accounts and press Enter, then the User Account Management menu appears. Admin and User Privileges There are two levels of user privileges: Admin and User. Some menu selections available to users with Admin privileges may not be available to those with User privileges.
Page 41: Factory Reset
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Some settings, though, require you to restart the switch before they will take effect. Restarting the switch erases all settings in RAM and reloads the stored settings from the NV-RAM. Thus, it is necessary to save all setting changes to NV-RAM before rebooting the switch.
Page 42: Switch Information
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 3-11. Restart System NOTE: clicking Yes is equivalent to executing Save Changes and then restarting the switch. Switch Information The first page displayed upon logging in presents the System Information menu. This page can be accessed at any time by clicking the Switch Information button in the Configuration folder.
Page 43: Advanced Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The System Information page displays general information about the Switch including its MAC Address, Hardware Boot PROM and Firmware versions, and installed module information. You can also enter a System Name, System Location, and the name and telephone number of the responsible administrator in the System Contact.
Page 44 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch IGMP Snooping To enable system-wide IGMP Snooping capability select Enabled. IGMP snooping is Disabled by default. Enabling IGMP snooping allows you to specify use of a multicast router only (see below). To configure IGMP Snooping for individual VLANs, use the IGMP Snooping page under the IGMP folder.
Page 45: Switch Stack Management
Section 4 Switch Stack Management The DGS-3212SR switch can be used as a standalone high-capacity switch or be used in a stacked arrangement. There are two hardware requirements to use the switch in a stacked group: 1. The proper module(s) must be installed. One or two DEM-540 Stacking modules must be installed in order to use the switch in a stacked configuration.
Page 46 Enables or disables the switch’s stacking mode. The following example configures the DGS-3212SR for stacking. With the management station’s console connected to the serial port of the switch with the lowest MAC address, enter the following command at the prompt:...
Page 47 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 4-3. config stacking Command...
Page 48: Vlan Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 5 VLAN Configuration The first half of this section describes how to use the web manager to configure VLANs in the switch. This is followed by a review of some of the basic concepts of VLANs in an Ethernet switching environment. For a detailed list of CLI commands associated with VLAN management, please read the CLI reference guide.
Page 49 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch To change an existing 802.1Q VLAN entry, click the Modify button in the 802.1Q Static VLANs menu. A new menu appears, use this to configure the port settings and to assign a unique name and number to the new VLAN.
Page 50 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 5-4. Port VLAN ID (PVID) The following fields can be set: Parameter Description Displays the Unit ID of the switch − within the switch stack − that the VLAN Unit will be created on.
Page 51 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The Group VLAN Registration Protocol (GVRP) enables the port to GVRP dynamically become a member of a VLAN. GVRP is disabled by default. Configure 802.1Q Static VLANs The following figures and tables describe how to set up static VLANs on the switch. Click on the Static VLAN Entry link in the VLANs folder to open the 802.1Q Static VLANs page, as shown below.
Page 52 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch VID (VLAN ID) The VLAN ID of the VLAN that is being created. VLAN Name The name of the VLAN that is being created. Port Corresponds to the ports that will be members of the VLAN.
Page 53: Q Port Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Checking the box will designate the port as Tagging. Specifies the port as not being a static member of the VLAN, but with no None restrictions for joining the VLAN dynamically through GVRP.
Page 54: Understanding Vlans
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch These two fields allow you to specify the range of ports that will be From/To included in the Port-based VLAN that you are creating using the 802.1Q Port Settings page. This field can be toggled using the space bar between Enabled and Disabled.
Page 55: Q Vlan Packet Forwarding
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch IEEE 802.1Q (tagged) VLANs are implemented on the DES-3226S switch. 802.1Q VLANs require tagging, which enables the VLANs to span an entire network (assuming all switches on the network are IEEE 802.1Q- compliant).
Page 56: Port Vlan Id
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 5-10. IEEE 802.1Q Tag The EtherType and VLAN ID are inserted after the MAC source address, but before the original EtherType/Length or Logical Link Control. Because the packet is now a bit longer than it was originally, the Cyclic Redundancy Check (CRC) must be recalculated.
Page 57: Tagging And Untagging
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch contained within the tag. Tagged packets are also assigned a PVID, but the PVID is not used to make packet forwarding decisions, the VID is. Tag-aware switches must keep a table to relate PVIDs within the switch to VIDs on the network. The switch will compare the VID of a packet to be transmitted to the VID of the port that is to transmit the packet.
Page 58: Port Settings Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 6 Port Settings Configuration This section contains information for configuring various attributes and properties for individual physical ports, including port security, traffic segmentation, port bandwidth control, serial port settings, and port mirroring.
Page 59: Port Mirroring
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch adjustment of port settings with any option other than Auto. Flow Control Displays the flow control scheme used for the various port configurations. Ports configured for full-duplex use 802.3x flow control, half-duplex ports use backpressure flow control, and Auto ports use an automatic selection of the two.
Page 60 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch NOTE: You cannot mirror a fast port onto a slower port. For example, if you try to mirror the traffic from a 100 Mbps port onto a 10 Mbps port, this can cause throughput problems.
Page 61: Link Aggregation Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 7 Link Aggregation Configuration Link aggregation allows several ports to be grouped together and to act as a single link. This gives a bandwidth that is a multiple of a single link’s bandwidth.
Page 62 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 7-2. Port Trunking Configuration – Add Menu The user-changeable parameters are as follows: Parameter Description Group ID Select an ID number for the group. Group Name Type in a name for the group (optional).
Page 63: Forwarding And Filtering
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 8 Forwarding and Filtering Static Unicast Forwarding Open the Forwarding & Filtering folder and click on the Unicast Forwarding link. This will open the Setup Static Unicast Forwarding Table, as shown below.
Page 64 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 8-2. Setup Static Multicast Forwarding Table The Static Multicast Forwarding Settings page displays all of the entries made into the switch’s static multicast forwarding table. Click the Add button to open the Setup Static Multicast Forwarding Table, as shown below.
Page 65 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Multicast Port Filtering Mode Setup The following figure and table describe how to set up Multicast forwarding on the switch. Open the Forwarding & Filtering folder and click on the Multicast Port Filtering Mode link to see the entry screen below: Figure 8-4.
Page 66: Igmp Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 9 IGMP Settings In order to use IGMP Snooping it must first be enabled for the entire Switch (see Advanced Settings). You may then fine-tune the settings for each VLAN using the IGMP Snooping Settings menu. When enabled for IGMP snooping, the Switch can open or close a port to a specific Multicast group member based on IGMP messages sent from the device to the IGMP host or vice versa.
Page 67: Static Router Ports
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Parameter Description The Query Interval field is used to set the time (in seconds) between Query Interval transmitting IGMP queries. Entries between 1 and 9,999 seconds are allowed. Default = 125. This determines the maximum amount of time in seconds allowed before Max Response Time sending an IGMP response report.
Page 68 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch switch would not be able to receive UDP data streams unless the UDP multicast packets were all forwarded to the router port. A router port will be dynamically configured when IGMP query packets, RIPv2 multicast, DVMRP multicast, or PIM-DM multicast packets are detected flowing into a port.
Page 69: Spanning Tree Protocol Configuration
802.1d STP will be familiar to most networking professionals. However since 802.1w RSTP has been recently introduced to D-Link managed Ethernet switches, a brief introduction to the technology is provided below followed by a description of how to set up 802.1 d STP and 802.1w RSTP.
Page 70: Stp Switch Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch learning states. An edge port loses its status if it receives a BPDU packet, immediately becoming a normal spanning tree port. P2P Port A P2P port is also capable of rapid transition. P2P ports may be used to connect to other bridges. Under RSTP, all ports operating in full-duplex mode are considered to be P2P ports, unless manually overridden through configuration.
Page 71 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Configure the following parameters and click the Apply button to implement them: Parameter Description This field can be toggled between Enabled and Disabled using the pull- Status <Disabled> down menu. This will enable or disable the Spanning Tree Protocol (STP), globally, for the switch.
Page 72: Stp Port Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch STP Port Settings For stacked switch installations, first select the Unit to be configured. Figure 10-2. STP Port Settings In addition to setting Spanning Tree parameters for use on the switch level, the switch allows for the configuration of groups of ports, each port-group of which will have its own spanning tree, and will require some of its own configuration settings.
Page 73 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The following fields can be set: Parameter Description Unit This is the Unit ID of a switch in a switch stack. 15 indicates a DGS- 3212SR switch in standalone mode. From/To A consecutive group of ports may be configured starting with the selected port.
Page 74: Quality Of Service Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 11 Quality of Service Configuration QoS settings allow customization of packet priority in order to facilitate delivery of data traffic that might be affected by latency problems. The IEEE 802.1p Priority specification uses 8 priority levels to classify data packets.
Page 75: Configuring Default Priority
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Traffic or storm control is used to stop broadcast, multicast, or ARP request storms that may result when a loop is created. The Destination Look Up Failure control is a method of shutting down a loop when a storm is formed because a MAC address cannot be located in the Switch’s forwarding database and it must send a packet to all...
Page 76: Qos Output Scheduling Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Configuring 802.1p User Priority The DGS-3212SR allows the assignment of a User Priority to each of the 802.1p priorities. Figure 10-5. User Priority Configuration Once you have assigned a priority to the port groups on the switch, you can then assign this Class to each of the 8 levels of 802.1p priorities.
Page 77: Traffic Class Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Scheduling Mechanism − This drop-down menu allows you to select between a RoundRobin and a Strict mechanism for empting the priority queues. Click Apply to let your changes take effect. Traffic Class Configuration The Traffic Class Configuration menu is used to map incoming packets with 802.1p priority tags to one of the 4...
Page 78 Configuring traffic segmentation on the DGS-3212SR is accomplished in two parts. First you specify a switch from a switch stack, and then a port from that switch. Then you specify a second switch from the switch stack, and then you select which ports (or different ports on the same switch) on that switch that you want to be able to receive packets from the switch and port you specified in the first part.
Page 79: Bandwidth Control
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The Unit drop-down menu at the top of the page allows you to select a switch from a switch stack using that switch’s Unit ID. The Port drop-down menu allows you to select a port from that switch. This is the port that will be transmitting packets.
Page 80 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch This drop-down menu allows you to specify that the selected port will have no_limit no bandwidth limit. Enabled disables the limit. This field allows you to enter the data rate, in kb/s, that will be the limit for Rate the selected port.
Page 81: Mac Notification
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 12 MAC Notification MAC address notification is used to monitor MAC addresses as they are learned and entered into the switch’s MAC forwarding database. Global Settings Figure 12-1. MAC Notification Global Settings...
Page 82: Mac Notification Port Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch MAC Notification Port Settings Enable or disable MAC notification for ports with the menu below. Figure 12-2. MAC Notification Port Settings The following parameters can be set: Parameter Description Allows you to specify a switch in a switch stack using that switch’s Unit ID.
Page 83: System Log Server
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 13 System Log Server The switch can send Syslog messages to up to four designated servers. Use the System Log Server Figure 13-1. System Log Servers The parameters configured for adding and editing System Log Server settings are the same. See the table below for a description.
Page 84 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch may use the "user-level" Facility. Those Facilities that have been designated are shown in the following: Bold font means the facility values that are currently in use by the switch. Numerical Facility Code...
Page 85: Port Security Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 14 Port Security Settings A given port’s (or a range of port’s) dynamic MAC address learning can be locked such that the current source MAC addresses entered into the MAC address forwarding table can not be changed once the port lock is enabled.
Page 86: Sntp Setting
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 15 SNTP Setting The Simple Network Time Protocol (SNTP) (an adaptation of the Network Time Protocol (NPT)) is configured on the switch using the following pages. Time Settings Figure 15-1. Time Settings Page...
Page 87: Time Zone And Dst
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Month Enter the current month, if you want to update the system clock. Enter the current day, if you want to update the system clock. Enter the current time in hours, minutes, and seconds, if you want to Time in HH MM SS update the system clock.
Page 88 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch constitute your local DST offset − 30, 60, 90, or 120 minutes. Time Offset in Minutes Time Zone Offset Use these pull-down menus to specify your local time zone’s offset from GMT in +/- from Greenwich Mean Time (GMT).
Page 89: Access Profile Table
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 16 Access Profile Table Access profiles allow you to establish criteria to determine whether or not the switch will forward packets based on the information contained in each packet’s header. These criteria can be specified on a basis of VLAN, MAC address, or IP address.
Page 90 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The following parameters can be set: Parameter Description Type in a unique identifier number for this profile set or allow an ID to be automatically assigned by checking the Auto Assign option. This value can Profile ID(1-255) be set from 1 –...
Page 91 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 16-3. Access Profile Configuration The following parameters can be set: Parameter Description Type in a unique identifier number for this profile set or allow an ID to be automatically assigned by checking the Auto Assign option. This value can Profile ID(1-255) be set from 1 –...
Page 92 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch apply an ICMP code value. Select IGMP to instruct the switch to examine the Internet Group Management Protocol (ICMP) field in each frame’s header. Select Type to further specify that the access profile will apply an IGMP type value.
Page 93: Security Ip Management
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 17 Security IP Management The Security IP Management page allows you to specify the IP addresses of management stations (PCs) on your network that will be allowed to access the switch’s Web-based management agent.
Page 94: Port Access Entity
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Port Access Entity 802.1X Port-based Network Access Control The Switch is an implementation of the server side of IEEE 802.1X-Port Based Network Access Control. Through this mechanism, users have to be authorized before being able to access the network. See the following figure: Figure 17-2.
Page 95 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 17-3. Typical 802.1X Configuration with User Authentication The user’s information, including account number, password, and configuration details such as IP address and billing information, is stored in a centralized RADIUS server. Figure 9 - 1. Typical Configuration with 802.1X Fully Implemented...
Page 96: Configure Authenticator
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch State Machine Name Port Timers state machine Authenticator PAE state machine The Authenticator Key Transmit state machine Reauthentication Timer state machine Backend Authentication state machine Controlled Directions state machine The Key Receive state machine Conformance to IEEE 802.1X Standards...
Page 97 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 17-5. 802.1X Authenticator Settings This window allows you to set the following features: • From [ ] To [ ] – Enter the port or ports to be set. • AdmDir [both] – Sets the administrative-controlled direction to either in or both. If in is selected, control is only exerted over incoming traffic through the port you selected in the first field.
Page 98 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch • ReAuth [Disabled] – Determines whether regular reauthentication will take place on this port. The following parameters can be set: Parameter Description Allows you to specify a switch in a switch stack using that switch’s Unit ID.
Page 99: Port Authenticating Settings
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Port Authenticating Settings To set the port authenticating settings, open the Security folder, and then the Port Access Entity folder, and then the PAE System Control folder. Finally click on the Port Authenticating Settings link. This will open the 802.1X Capability Settings page, as shown below.
Page 100 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 17-7. 802.1X Authentic Radius Server Setting The following parameters can be set: Parameter Description Succession Radius server settings index. Radius Server Type in the IP address of the Radius server. This is the UDP port on the Radius server that will be used to authenticate Authentic Port users.
Page 101: Snmp
Use the SNMP V3 menus to select the SNMP version used for specific tasks. The DGS-3212SR supports the Simple Network Management Protocol (SNMP) versions 1, 2c, and 3. The SNMP version used to monitor and control the switch can be specified by the administrator. The three versions of SNMP vary in the level of security provided between the management station and the network device.
Page 102 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The following parameters are displayed: Parameter Description An alphanumeric string of up to 32 characters. This is used to identify the User Name SNMP users. This name is used to specify the SNMP group created that can request Group Name SNMP messages.
Page 103: Snmp View Table
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Click the encrypted click-box to enable encrypted SNMP V3 messages to SNMP V3 Encryption be encrypted. If you select this option, you must select the encryption protocols, and enter the appropriate passwords into the entry fields below.
Page 104: Snmp Group Table
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Figure 18-5. SNMP View Table Configuration The SNMP Group created with this table maps SNMP users (identified in the SNMP User Table) to the views created in the previous menu. The following parameters can be set:...
Page 105 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch To delete an existing SNMP Group Table entry, click the corresponding X icon under the Delete heading. To display the current settings for an existing SNMP Group Table entry, click the blue link for the entry under the Group Name heading.
Page 106: Snmp Community Table Configuration
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch (SMI) and adds some security features. USM – (User-based Security Module) Specifies that the SNMP version 3 will be used. SNMP v3 provides secure access to devices through a combination of authentication and encrypting packets over the network.
Page 107: Snmp Host Table
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch read_only − Specifies that SNMP community members using the Access Right community string created with this command can only read the contents of the MIBs on the switch. read_write − Specifies that SNMP community members using the community string created with this command can read from and write to the contents of the MIBs on the switch.
Page 108: Snmp Engine Id
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Community String / Type in the community string or SNMP V3 user name as appropriate. SNMP V3 User Name SNMP Engine ID The Engine ID is a unique identifier used for SNMP V3 implementations. This is an alphanumeric string used to identify the SNMP engine on the switch.
Page 109: System Monitoring And Statistics
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 19 System Monitoring and Statistics The DGS-3212SR provides extensive network monitoring capabilities that can be viewed from the Network Monitoring menu. Port Utilization The Port Utilization page displays the percentage of the total available bandwidth being used on the port. Port utilization statistics may be viewed using a line graph or table format.
Page 110: Packets
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Packets Received Packets Figure 19-2. Rx Packets Line Chart Select the desired switch using the Unit drop-down menu and the desired port using the Port drop-down menu. The Update Interval field sets the interval at which the error statistics are updated.
Page 111 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Received Unicast/Multicast/Broadcast Packets Figure 19-3. Rx Packets UMB Line Chart Select the desired switch using the Unit drop-down menu and the desired port using the Port drop-down menu. The Update Interval field sets the interval at which the error statistics are updated.
Page 112 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Transmitted Packet Errors Figure 19-4. Tx Error Packets Line Chart Select the desired switch using the Unit drop-down menu and the desired port using the Port drop-down menu. The Update Interval field sets the interval at which the error statistics are updated.
Page 113 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch SingColl (Single Single Collision Frames. The number of successfully transmitted frames for Collision) which transmission is inhibited by more than one collision. Coll (Collision) An estimate of the total number of collisions on this network segment.
Page 114: Packet Size
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The total number of frames received that were less than 64 octets long UnderSize (excluding framing bits, but including FCS octets) and were otherwise well formed. The total number of frames received that were longer than 1518 octets...
Page 115: Mac Address
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch The following fields can be set: Parameter Description Allows you to specify a switch in a switch stack using that switch’s Unit ID. Unit 15 indicates a switch in standalone mode. Port Allows you to specify a port to monitor from the switch selected above.
Page 116: Switch History
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Select the desired switch using the Unit drop-down menu and the desired port using the Port drop-down menu. The Update Interval field sets the interval at which the error statistics are updated. The following fields can be set:...
Page 117: Igmp Snooping
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch IGMP Snooping This allows the switch’s IGMP Snooping table to be viewed. IGMP Snooping allows the switch to read the Multicast Group IP address and the corresponding MAC address from IGMP packets that pass through the switch.
Page 118: Browser Router Port
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Browser Router Port This displays which of the switch’s ports are currently configured as router ports. A router port configured by a user (using the console or Web-based management interfaces) is displayed as a static router port, designated by S.
Page 119: Session Table
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Session Table The Session Table page displays the management sessions since the switch was last rebooted. Figure 19-12. Session Table Port Access Control This feature was not supported at the writing of this manual.
Page 120: Maintenance
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Section 20 Maintenance TFTP Services Trivial File Transfer Protocol (TFTP) services allow the switch firmware to be upgraded by transferring a new firmware file from a TFTP server to the switch. A configuration file can also be loaded into the switch from a TFTP server, switch settings can be saved to the TFTP server, and a history log can be uploaded from the switch to the TFTP server.
Page 121: Ping Test
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Save Settings to TFTP Server To upload the switch settings to a TFTP server, click on the Maintenance folder, then the TFTP Service folder, and then the Save Settings link: Figure 20-3. Save Settings to TFTP Server Enter the IP address of the TFTP server the path and filename for the history log on the TFTP server.
Page 122: Save Changes
IP address until the program is stopped. Save Changes The DGS-3212SR has two levels of memory, normal RAM and non-volatile or NV-RAM. Configuration changes are made effective clicking the Apply button. When this is done, the settings will be immediately applied to the switching software in RAM, and will immediately take effect.
Page 123 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Reset gives the option of retaining the switch’s User Accounts and History Log while resetting all other configuration parameters to their factory defaults. If the switch is reset with this option enabled, and Save Changes is not executed, the switch will return to the last saved configuration when rebooted.
Page 124 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Logout Use the Logout page to logout of the switch’s Web-based management agent by clicking on the Log Out button. Figure 20-9. Logout...
Page 125: Technical Specifications
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Appendix A Technical Specifications General IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.3ab 1000BASE-T Gigabit Ethernet Standard IEEE 802.1 P/Q VLAN IEEE 802.3x Full-duplex Flow Control IEEE 802.3 Nway auto-negotiation CSMA/CD Protocols Half-duplex Full-duplex...
Page 126 D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch Physical & Environmental AC inputs: 100 - 240 VAC, 50/60 Hz (internal universal power supply) Power Consumption: 30 watts maximum DC fans: 1 built-in 40 x 40 x10 mm fan Operating Temperature: 0 to 40 degrees Celsius (32 to 104 degrees Fahrenheit)
Page 127: Glossary
Glossary 100BASE-FX: 100Mbps Ethernet implementation over fiber. 100BASE-TX: 100Mbps Ethernet implementation over Category 5 and Type 1 Twisted Pair cabling. 10BASE-T: The IEEE 802.3 specification for Ethernet over Unshielded Twisted Pair (UTP) cabling. ageing: The automatic removal of dynamic entries from the Switch Database which have timed- out and are no longer valid.
Page 128 full duplex: A system that allows packets to be transmitted and received at the same time and, in effect, doubles the potential throughput of a link. half duplex: A system that allows packets to be transmitted and received, but not at the same time. Contrast with full duplex.
Page 129 switch: A device which filters, forwards and floods packets based on the packet’s destination address. The switch learns the addresses associated with each switch port and builds tables based on this information to be used for the switching decision. TCP/IP: A layered set of communications protocols providing Telnet terminal emulation, FTP file transfer, and other services for communication among a wide range of computer equipment.
Page 130: Limitation Of Liability
Any product or part repaired by D-Link pursuant to this warranty shall have a warranty period of not less than 90 days, from date of such repair, irrespective of any earlier expiration of original warranty period.
Page 131: Copyright Statement
D-Link warrants that its software products will perform in substantial conformance with the applicable product documentation provided by D-Link with such software product, for a period of ninety (90) days from the date of purchase from D-Link or its Authorized Reseller. D-Link warrants the magnetic media, on which D-Link provides its software product, against failure during the same warranty period.
Page 132: Warranty Information
Warranty Information (All countries and regions excluding USA) Wichtige Sicherheitshinweise Bitte lesen Sie sich diese Hinweise sorgfältig durch. Heben Sie diese Anleitung für den spätern Gebrauch auf. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger.
Page 133 D-Link or its Authorized Reseller and extending for the length of time stipulated by the Authorized Reseller or D-Link Branch Office nearest to the place of purchase.
Page 134 Warranty service for software products may be obtained by contacting a D-Link office within the applicable warranty period. A list of D-Link offices is provided at the back of this manual. D-Link warrants that its software products will perform in substantial conformance with the applicable product documentation provided by D-Link with such software product, for a period of ninety (90) days from the date of purchase from D-Link or its Authorized Reseller.
Page 135 Hardware will be warranted for the remainder of the original Warranty Period from the date of original retail purchase. If a material defect is incapable of correction, or if D-Link determines in its sole discretion that it is not practical to repair or replace the defective Hardware, the price paid by the original purchaser for the defective Hardware will be refunded by D-Link upon return to D-Link of the defective Hardware.
Page 136 D-Link not to be defective or non-conforming. What Is Not Covered: This limited warranty provided by D-Link does not cover: Products, if in D-Link’s judgment, have been subjected to abuse, accident, alteration, modification, tampering, negligence, misuse, faulty installation, lack of reasonable care, repair or service in any way that is not contemplated in the documentation for the product, or if the model or serial number has been altered, tampered with, defaced or removed;...
Page 137 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. For detailed warranty outside the United States, please contact corresponding local D-Link office.
Page 138 Le Florilege, No. 2, Allée de la Fresnerie, 78330 Fontenay-le-Fleury, France TEL: 33-1-3023-8688 FAX: 33-1-3023-8689 URL: www.dlink-france.fr E-MAIL: info@dlink-france.fr Germany D-Link Central Europe (D-Link Deutschland GmbH) Schwalbacher Strasse 74, D-65760 Eschborn, Germany TEL: 49-6196-77990 FAX: 49-6196-7799300 URL: www.dlink.de BBS: 49-(0) 6192-971199 (analog) BBS: 49-(0) 6192-971198 (ISDN)
Page 139 Centurion, Gauteng, South Africa TEL: 27-12-665-2165 FAX: 27-12-665-2186 URL: www.d-link.co.za E-MAIL: attie@d-link.co.za Spain D-Link Iberia (Spain and Portugal) Sabino de Arana, 56 bajos, 08028 Barcelona, Spain TEL: 34 93 409 0770 FAX: 34 93 491 0795 URL: www.dlink.es E-MAIL: info@dlink.es...
Page 140 U.K. D-Link Europe (United Kingdom) Ltd Floor, Merit House, Edgware Road, Colindale, London NW9 5AB United Kingdom TEL: 44-020-8731-5555 SALES: 44-020-8731-5550 FAX: 44-020-8731-5511 SALES: 44-020-8731-5551 BBS: 44 (0) 181-235-5511 URL: www.dlink.co.uk E-MAIL: info@dlink.co.uk U.S.A. D-Link U.S.A. 17595 Mt. Herrmann, Fountain Valley, CA 92708 TEL: 1-714-885-6000 FAX: 1-886-743-4905 INFO: 1-800-326-1688 URL: www.dlink.com...

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