User manual D-LINK DES-3526

User Manual Product Model: DES-3526 / DES-3526DC Layer 2 Managed Stackable Fast Ethernet Switch Release 3.60 TM ©Copyright 2005. All Rights Reserved __________________________________________________________________________________ Information in this document is subject to change without notice. © 2005 D-Link Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly forbidden. Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link 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. D-Link Corporation disclaims any proprietary interest in trademarks and trade names other than its own. October 2005 P/N 651ES3526085G ii Table of Contents Preface........................................................................................................................................................................................... vi Intended Readers.......................................................................................................................................................................... vii Typographical Conventions ......................................................................................................................................................................... vii Notes, Notices, and Cautions ....................................................................................................................................................... vii Safety Instructions....................................................................................................................................................................... viii Safety Cautions ........................................................................................................................................................................................... viii General Precautions for Rack-Mountable Products .......................................................................................................................................ix Protecting Against Electrostatic Discharge .....................................................................................................................................................x Introduction.......................................................................................................................................................................................... 1 Gigabit Ethernet Technology ..........................................................................................................................................................................1 Switch Description..........................................................................................................................................................................................1 Features...........................................................................................................................................................................................................2 Ports ................................................................................................................................................................................................................2 Front-Panel Components.................................................................................................................................................................................2 LED Indicators................................................................................................................................................................................................3 Rear Panel Description....................................................................................................................................................................................4 Side Panel Description ....................................................................................................................................................................................4 Gigabit Combo Ports.......................................................................................................................................................................................5 Installation ........................................................................................................................................................................................... 6 Package Contents ............................................................................................................................................................................................6 Before You Connect to the Network...............................................................................................................................................................6 Installing the Switch without the Rack............................................................................................................................................................7 Installing the Switch in a Rack........................................................................................................................................................................7 Mounting the Switch in a Standard 19" Rack .................................................................................................................................................8 Connecting DC Power to DES-3526DC .........................................................................................................................................................9 Connecting the Switch ....................................................................................................................................................................... 10 Switch to End Node ......................................................................................................................................................................................10 Switch to Hub or Switch ...............................................................................................................................................................................11 Connecting To Network Backbone or Server ...............................................................................................................................................11 Introduction to Switch Management.................................................................................................................................................. 12 Management Options ................................................................................................................................................................... 12 Web-based Management Interface................................................................................................................................................................12 SNMP-Based Management...........................................................................................................................................................................12 Connecting the Console Port (RS-232 DCE) ................................................................................................................................................12 First Time Connecting to the Switch.............................................................................................................................................................14 Password Protection......................................................................................................................................................................................14 SNMP Settings..............................................................................................................................................................................................16 IP Address Assignment .................................................................................................................................................................................17 Connecting Devices to the Switch ................................................................................................................................................................18 Web-based Switch Configuration ...................................................................................................................................................... 19 Introduction.................................................................................................................................................................................. 19 Login to Web Manager .................................................................................................................................................................................19 Web-based User Interface .............................................................................................................................................................................20 Web Pages.....................................................................................................................................................................................................21 Configuring the Switch ...................................................................................................................................................................... 22 Switch Information....................................................................................................................................................................... 23 IP Address .................................................................................................................................................................................... 23 Setting the Switch's IP Address using the Console Interface ........................................................................................................................25 Advanced Settings........................................................................................................................................................................ 26 Port Configurations ...................................................................................................................................................................... 28 Port Description ........................................................................................................................................................................... 29 Port Mirroring .............................................................................................................................................................................. 30 Link Aggregation ......................................................................................................................................................................... 31 LACP Port Setting ....................................................................................................................................................................... 34 MAC Notification ........................................................................................................................................................................ 35 MAC Notification Global Settings................................................................................................................................................................35 MAC Notification Port Settings....................................................................................................................................................................36 IGMP............................................................................................................................................................................................ 37 IGMP Snooping ............................................................................................................................................................................................37 Static Router Ports Entry...............................................................................................................................................................................39 IGMP Multicast VLAN ................................................................................................................................................................................40 Spanning Tree .............................................................................................................................................................................. 42 STP Bridge Global Settings ..........................................................................................................................................................................45 MST Configuration Table .............................................................................................................................................................................47 MSTI Settings ...............................................................................................................................................................................................50 STP Instance Settings....................................................................................................................................................................................51 MSTP Port Information ................................................................................................................................................................................52 Forwarding Filtering .................................................................................................................................................................... 54 Unicast Forwarding.......................................................................................................................................................................................54 Multicast Forwarding....................................................................................................................................................................................54 Multicast Port Filtering Mode .......................................................................................................................................................................56 VLANs......................................................................................................................................................................................... 57 VLAN Description........................................................................................................................................................................................57 IEEE 802.1Q VLANs ...................................................................................................................................................................................57 Static VLAN Entry .......................................................................................................................................................................................62 GVRP Setting ...............................................................................................................................................................................................64 Traffic Control ..............................................................................................................................................................................................65 Port Security .................................................................................................................................................................................................66 QoS .............................................................................................................................................................................................. 67 Port Bandwidth .............................................................................................................................................................................................69 Scheduling ....................................................................................................................................................................................................70 802.1p Default Priority .................................................................................................................................................................................71 802.1p User Priority......................................................................................................................................................................................71 Traffic Segmentation.....................................................................................................................................................................................72 System Severity Alerts................................................................................................................................................................. 73 System Log Server ....................................................................................................................................................................... 73 SNTP Settings .............................................................................................................................................................................. 75 Time Setting..................................................................................................................................................................................................75 Time Zone and DST......................................................................................................................................................................................76 Access Profile Table .................................................................................................................................................................... 78 Configuring the Access Profile Table ...........................................................................................................................................................78 PAE Access Entity (802.1X)........................................................................................................................................................ 89 802.1x Port-Based and MAC-Based Access Control ....................................................................................................................................89 Authentication Process..................................................................................................................................................................................91 Port-Based Network Access Control.............................................................................................................................................................92 MAC-Based Network Access Control ..........................................................................................................................................................93 Configure Authenticator................................................................................................................................................................................94 PAE System Control .....................................................................................................................................................................................96 RADIUS Server ............................................................................................................................................................................................99 IP-MAC Binding........................................................................................................................................................................ 100 IP-MAC Binding Port .................................................................................................................................................................................100 IP-MAC Binding Table...............................................................................................................................................................................101 IP-MAC Binding Blocked...........................................................................................................................................................................102 Limited IP Multicast Range Settings ......................................................................................................................................... 103 Layer 3 IP Networking............................................................................................................................................................... 104 Static ARP Table.........................................................................................................................................................................................104 DHCP/BOOTP Relay .................................................................................................................................................................................105 Management..................................................................................................................................................................................... 109 Security IP.................................................................................................................................................................................. 109 User Accounts ............................................................................................................................................................................ 109 Access Authentication Control................................................................................................................................................... 111 Policy & Parameters....................................................................................................................................................................................111 Application's Authentication Settings .........................................................................................................................................................112 Authentication Server Group Settings.........................................................................................................................................................113 Authentication Server Hosts .......................................................................................................................................................................114 Login Method Lists.....................................................................................................................................................................................115 Enable Method Lists ...................................................................................................................................................................................117 Local Enable Password ...............................................................................................................................................................................118 Enable Admin .............................................................................................................................................................................................119 Secure Socket Layer (SSL) ........................................................................................................................................................ 120 Download Certificate ..................................................................................................................................................................................120 Ciphersuite ..................................................................................................................................................................................................121 Secure Shell (SSH)..................................................................................................................................................................... 122 SSH Configuration......................................................................................................................................................................................122 SSH Algorithm............................................................................................................................................................................................123 SSH User Authentication ............................................................................................................................................................................125 SNMP Manager.......................................................................................................................................................................... 126 SNMP Settings............................................................................................................................................................................................126 SNMP User Table .......................................................................................................................................................................................127 SNMP View Table ......................................................................................................................................................................................129 SNMP Group Table ....................................................................................................................................................................................130 SNMP Community Table Configuration.....................................................................................................................................................131 SNMP Host Table .......................................................................................................................................................................................132 SNMP Engine ID ........................................................................................................................................................................................133 Monitoring ....................................................................................................................................................................................... 134 Port Utilization........................................................................................................................................................................... 134 CPU Utilization.......................................................................................................................................................................... 135 Packets ....................................................................................................................................................................................... 136 Received (RX) ............................................................................................................................................................................................136 UMB Cast (RX) ..........................................................................................................................................................................................137 Transmitted (TX) ........................................................................................................................................................................................139 Errors.......................................................................................................................................................................................... 141 Received (RX) ............................................................................................................................................................................................141 Transmitted (TX) ........................................................................................................................................................................................142 Size............................................................................................................................................................................................. 144 MAC Address ............................................................................................................................................................................ 146 Switch History............................................................................................................................................................................ 147 IGMP Snooping Group .............................................................................................................................................................. 148 IGMP Snooping Forwarding...................................................................................................................................................... 149 VLAN Status.............................................................................................................................................................................. 150 Router Port ................................................................................................................................................................................. 150 Port Access Control.................................................................................................................................................................... 151 Authenticator State......................................................................................................................................................................................151 Layer 3 Feature .......................................................................................................................................................................... 153 Browse ARP Table......................................................................................................................................................................................153 Maintenance..................................................................................................................................................................................... 154 TFTP Services............................................................................................................................................................................ 154 Download Firmware from TFTP Server .....................................................................................................................................................154 Download Configuration File .....................................................................................................................................................................155 Upload Configuration .................................................................................................................................................................................155 Upload Log .................................................................................................................................................................................................156 Multiple Image Services ............................................................................................................................................................ 157 Firmware Information .................................................................................................................................................................................157 Config Firmware Image ..............................................................................................................................................................................158 Ping Test .................................................................................................................................................................................... 158 Save Changes ............................................................................................................................................................................. 159 Reset........................................................................................................................................................................................... 159 Reset System .............................................................................................................................................................................. 160 Reset Config............................................................................................................................................................................... 160 Reboot Device.............................................................................................................................................................................................160 Logout.........................................................................................................................................................................................................160 D-Link Single IP Management ........................................................................................................................................................ 161 Single IP Management (SIM) Overview.................................................................................................................................... 161 SIM Using the Web Interface..................................................................................................................................................... 163 Topology .................................................................................................................................................................................... 164 Tool Tips.................................................................................................................................................................................... 166 Right-Click..................................................................................................................................................................................................167 Menu Bar ....................................................................................................................................................................................................171 Firmware Upgrade ..................................................................................................................................................................... 172 Configuration File Backup/Restore.............................................................................................................................................................172 Technical Specifications .................................................................................................................................................................. 173 Cables and Connectors..................................................................................................................................................................... 175 Cable Lengths .................................................................................................................................................................................. 176 Glossary ........................................................................................................................................................................................... 177 Warrenties/Registration ................................................................................................................................................................... 180 Tech Support.................................................................................................................................................................................... 188 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Preface The DES-3526/DES-3526DC Manual is divided into sections that describe the system installation and operating instructions with examples. Section 1, Introduction - Describes the Switch and its features. Section 2, Installation- Helps you get started with the basic installation of the Switch and also describes the front panel, rear panel, side panels, and LED indicators of the Switch. Included in this section is a description of how to hook up the DC power supply for the DES-3526DC. Section 3, Connecting the Switch - Tells how you can connect the Switch to your Ethernet/Fast Ethernet network. Section 4, Introduction to Switch Management - Introduces basic Switch management features, including password protection, SNMP settings, IP address assignment and connecting devices to the Switch. Section 5, Introduction to Web-based Switch Management - Talks about connecting to and using the Web-based switch management feature on the Switch. Section 6, Configuring the Switch - A detailed discussion about configuring some of the basic functions of the Switch, including accessing the Switch information, using the Switch's utilities and setting up network configurations, such as Quality of Service, The Access Profile Table, port mirroring and configuring the Spanning Tree. Section 7, Management - A discussion of the security features of the Switch, including Security IP, User Accounts, Access Authentication Control, and SNMP. Section 8, Monitoring - Features graphs and screens used in monitoring features and packets on the Switch. Section 9, Maintenance - Features information on Switch utility functions, including TFTP Services, Switch History, Ping Test Save Changes and Rebooting Services. Section 10, Single IP Management - Discussion on the Single IP Management function of the Switch, including functions and features of the Java based user interface and the utilities of the SIM function. Appendix A, Technical Specifications - The technical specifications of the DES-3526 and DES-3526DC. Appendix B, Cables and Connectors - Describes the RJ-45 receptacle/connector, straight through and crossover cables and standard pin assignments. Appendix C, Cable Lengths - Information on cable types and maximum distances. Glossary - Lists definitions for terms and acronyms used in this document. vi xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Intended Readers The DES-3526 / DES-3526DC Manual contains information for setup and management of the Switch. This manual 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. For example: [copy filename] means that optionally you can type copy followed by the name of the file. Do not type the brackets. Indicates a button, a toolbar icon, menu, or menu item. For example: Open the File menu and choose Cancel. Used for emphasis. May also indicate system messages or prompts appearing on your screen. For example: You have mail. Bold font is also used to represent filenames, program names and commands. For example: use the copy command. Indicates commands and responses to prompts that must be typed exactly as printed in the manual. Indicates a window name. Names of keys on the keyboard have initial capitals. For example: Click Enter. Indicates a window name or a field. Also can indicate a variables or parameter that is replaced with an appropriate word or string. For example: type filename means that you should type the actual filename instead of the word shown in italic. Menu Name > Menu Option Indicates the menu structure. Device > Port > Port Properties means the Port Properties menu option under the Port menu option that is located under the Device menu. Bold font Boldface Typewriter Font Initial capital letter Italics Menu Name > Menu Option Notes, Notices, and Cautions A NOTE indicates important information that helps you make better use of your device. A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. A CAUTION indicates a potential for property damage, personal injury, or death. vii xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Safety Instructions Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential damage. Throughout this document, the caution icon ( ) is used to indicate cautions and precautions that you need to review and follow. Safety Cautions To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the following precautions. · Observe and follow service markings. · · · Do not service any product except as explained in your system documentation. Opening or removing covers that are marked with the triangular symbol with a lightning bolt may expose you to electrical shock. Only a trained service technician should service components inside these compartments. · If any of the following conditions occur, unplug the product from the electrical outlet and replace the part or contact your trained service provider: · · · · · 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. The product does not operate correctly when you follow the operating instructions. · · · · · · · Keep your system away from radiators and heat sources. Also, do not block cooling vents. Do not spill food or liquids on your system components, and never operate the product in a wet environment. If the system gets wet, see the appropriate section in your troubleshooting guide or contact your trained service provider. Do not push any objects into the openings of your system. Doing so can cause fire or electric shock by shorting out interior components. Use the product only with approved equipment. Allow the product to cool before removing covers or touching internal components. Operate the product only from the type of external power source indicated on the electrical ratings label. If you are not sure of the type of power source required, consult your service provider or local power company. To help avoid damaging your system, be sure the voltage on the power supply is set to match the power available at your location: · · · · 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries such as South Korea and Taiwan 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan 230 V/50 Hz in most of Europe, the Middle East, and the Far East ­48 VDC for DC power supply unit on DES-3526DC only · · Also, be sure that attached devices are electrically rated to operate with the power available in your location. Use only approved power cable(s). If you have not been provided with a power cable for your system or for any ACpowered option intended for your system, purchase a power cable that is approved for use in your country. The power cable must be rated for the product and for the voltage and current marked on the product's electrical ratings label. The voltage and current rating of the cable should be greater than the ratings marked on the product. To help prevent electric shock, plug the system and peripheral power cables into properly grounded electrical outlets. These cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the grounding prong from a cable. If you must use an extension cable, use a 3-wire cable with properly grounded plugs. viii · xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual · · · · · Observe extension cable and power strip ratings. Make sure that the total ampere rating of all products plugged into the extension cable or power strip does not exceed 80 percent of the ampere ratings limit for the extension cable or power strip. To help protect your system from sudden, transient increases and decreases in electrical power, use a surge suppressor, line conditioner, or uninterruptible power supply (UPS). Position system cables and power cables carefully; route cables so that they cannot be stepped on or tripped over. Be sure that nothing rests on any cables. Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always follow your local/national wiring rules. When connecting or disconnecting power to hot-pluggable power supplies, if offered with your system, observe the following guidelines: · · · 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. · Move products with care; ensure that all casters and/or stabilizers are firmly connected to the system. Avoid sudden stops and uneven surfaces. General Precautions for Rack-Mountable Products Observe the following precautions for rack stability and safety. Also, refer to the rack installation documentation accompanying the system and the rack for specific caution statements and procedures. · · Systems are considered to be components in a rack. Thus, "component" refers to any system as well as to various peripherals or supporting hardware. Before working on the rack, make sure that the stabilizers are secured to the rack, extended to the floor, and that the full weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined multiple racks before working on the rack. Always load the rack from the bottom up, and load the heaviest item in the rack first. Make sure that the rack is level and stable before extending a component from the rack. Use caution when pressing the component rail release latches and sliding a component into or out of a rack; the slide rails can pinch your fingers. After a component is inserted into the rack, carefully extend the rail into a locking position, and then slide the component into the rack. Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed 80 percent of the branch circuit rating. Ensure that proper airflow is provided to components in the rack. Do not step on or stand on any component when servicing other components in a rack. NOTE: A qualified electrician must perform all connections to DC power and to safety grounds. All electrical wiring must comply with applicable local, regional or national codes and practices. CAUTION: Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available. CAUTION: The system chassis must be positively grounded to the rack cabinet frame. Do not attempt to connect power to the system until grounding cables are connected. A qualified electrical inspector must inspect completed power and safety ground wiring. An energy hazard will exist if the safety ground cable is omitted or disconnected. ix · · · · · · · xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Protecting Against Electrostatic Discharge Static electricity can harm delicate components inside your system. To prevent static damage, discharge static electricity from your body before you touch any of the electronic components, such as the microprocessor. You can do so by periodically touching an unpainted metal surface on the chassis. You can also take the following steps to prevent damage from electrostatic discharge (ESD): 1. When unpacking a static-sensitive component from its shipping carton, do not remove the component from the antistatic packing material until you are ready to install the component in your system. Just before unwrapping the antistatic packaging, be sure to discharge static electricity from your body. 2. When transporting a sensitive component, first place it in an antistatic container or packaging. 3. Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads, workbench pads and an antistatic grounding strap. x xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Section 1 Introduction Gigabit Ethernet Technology Switch Description Features Ports Front-Panel Components Side Panel Description Rear Panel Description Gigabit Combo Ports The DES-3526/DES-3526DC layer 2 Stackable Fast Ethernet switches are members of the D-Link xStack family. Ranging from 10/100Mbps edge switches to core gigabit switches, the xStack switch family has been future-proof designed to provide a stacking architecture with fault tolerance, flexibility, port density, robust security and maximum throughput with a user-friendly management interface for the networking professional. The following manual describes the installation, maintenance and configurations concerning members of the xStack DES3526/DES-3526DC switch series. These switches are identical in configurations and basic hardware and consequentially, most of the information in this manual will be universal all DES-3526/DES-3526DC switches. Corresponding screen pictures of the web manager may be taken from any one of these switches but the configuration will be identical, except for varying port counts. Please take note that if this device was purchased outside of Europe, certain cosmetic differences between the actual switch and images in this document will be apparent to the reader, such as the faceplate and the manual cover. The DES-3526/DES-3526DC has already joined the xStack family for the European market and is soon to be xStack converted, universally. Changes are made to the appearance of the device only and no configuration or internal hardware alterations occur. Gigabit Ethernet Technology Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and support for CSMA/CD protocol, full duplex, flow control, and management objects, but with a tenfold increase in theoretical throughput over 100Mbps Fast Ethernet and a one hundred-fold increase over 10Mbps Ethernet. Since it is compatible with all 10Mbps and 100Mbps Ethernet environments, Gigabit Ethernet provides a straightforward upgrade without wasting a company's existing investment in hardware, software, and trained personnel. The increased speed and extra bandwidth offered by Gigabit Ethernet are essential to coping with the network bottlenecks that frequently develop as computers and their busses get faster and more users using applications that generate more traffic. Upgrading key components, such as your backbone and servers to Gigabit Ethernet can greatly improve network response times as well as significantly speed up the traffic between your sub networks. Gigabit Ethernet enables fast optical fiber connections to support video conferencing, complex imaging, and similar data-intensive applications. Likewise, since data transfers occur 10 times faster than Fast Ethernet, servers outfitted with Gigabit Ethernet NIC's are able to perform 10 times the number of operations in the same amount of time. In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effective method to take advantage of today and tomorrow's rapidly improving switching and routing internetworking technologies. Switch Description The DES-3526 is equipped with unshielded twisted-pair (UTP) cable ports providing dedicated 10 or 100 Mbps bandwidth. The Switch has 24 UTP ports and Auto MDI-X/MDI-II convertible ports that can be used for unlinking to another switch. These ports can be used for connecting PCs, printers, servers, hubs, routers, switches and other networking devices. The dual speed ports use standard twisted-pair cabling and are ideal for segmenting networks into small, connected sub networks for superior performance. Each 10/100 port can support up to 200 Mbps of throughput in full-duplex mode. In addition, the Switch has 2 Mini-GBIC combo ports. These two-gigabit combo ports are ideal for connecting to a server or network backbone. This stand-alone Switch enables the network to use some of the most demanding multimedia and imaging applications concurrently with other user applications without creating bottlenecks. The built-in console interface can be used to configure the Switch's settings for priority queuing, VLANs, and port trunk groups, port monitoring, and port speed. 1 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual NOTE: For the remainder of this manual, both hardware versions of the Switch, the DES-3526 and DES-3526DC, will be referred to as simply the Switch or the DES-3526 except where the differences are relevant. Features · · · · · · · · IEEE 802.3 10BASE-T compliant IEEE 802.3u 100BASE-TX compliant IEEE 802.1p Priority Queues IEEE 802.3x flow control in full duplex mode IEEE 802.3ad Link Aggregation Control Protocol support. IEEE 802.1x Port-based and MAC-based Access Control IEEE 802.1Q VLAN IEEE 802.1D Spanning Tree, IEEE 802.1W Rapid Spanning Tree and IEEE 802.1s Multiple Spanning Tree support Access Control List (ACL) support Single IP Management support Access Authentication Control utilizing TACACS, XTACACS and TACACS+ Dual Image Firmware Simple Network Time Protocol support MAC Notification support Asymmetric VLAN support System and Port Utilization support System Log Support Support port-based enable and disable · · · · · · · · · · · · · · · · · · · Address table: Supports up to 8K MAC addresses per device Supports a packet buffer of up to 3 Mbits Supports Port-based VLAN Groups Port Trunking with flexible load distribution and fail-over function IGMP Snooping support SNMP support Secure Sockets Layer (SSL) and Secure Shell (SSH) support Port Mirroring support MIB support for: RFC1213 MIB II RFC1493 Bridge RFC1757 RMON RFC1643 Ether-like MIB RFC2233 Interface MIB Private MIB RFC2674 for 802.1p IEEE 802.1x MIB RS-232 DCE console port for Switch management Provides parallel LED display for port status such as link/act, speed, etc. · · · · · · · · · · · · High performance switching engine performs forwarding and filtering at full wire speed, maximum 14, 881 packets/sec on each 10Mbps Ethernet port, and maximum 148,810 packet/sec on 100Mbps Fast Ethernet port. Full- and half-duplex for both 10Mbps and 100Mbps connections. Full duplex allows the switch port to simultaneously transmit and receive data. It only works with connections to full-duplex-capable end stations and switches. Connections to a hub must take place at half-duplex Support broadcast storm filtering Non-blocking store and forward switching scheme capability to support rate adaptation and protocol conversion Supports by-port Egress/Ingress rate control. Supports IP-MAC Port Binding. Efficient self-learning and address recognition mechanism enables forwarding rate at wire speed Supports STP LoopBack Prevention · · · · · · 2 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Ports · · · · Twenty-four high-performance (MDI-X/MDI-II) ports for connecting to end stations, servers, hubs and other networking devices. All UTP ports can auto-negotiate between 10Mbps and 100Mbps, half-duplex and full duplex, and feature flow control. Two 1000BASE-T Mini-GBIC combo ports for connecting to another switch, server, or network backbone. RS-232 DCE Diagnostic port (console port) for setting up and managing the Switch via a connection to a console terminal or PC using a terminal emulation program. NOTE: For customers interested in D-View, D-Link Corporation's proprietary SNMP management software, go to the D-Link Website (www.dlink.com.cn) and download the software and manual. Front-Panel Components The front panel of the Switch consists of LED indicators for power and for each 10/100 Mbps twisted-pair ports, and two 1000BASE-T Mini-GBIC ports. The ports of the DES-3526 and DES-3526DC are identical. Figure 1- 1. Front Panel View of the DES-3526 The DES-3526DC does not support a redundant power supply and therefore the RPS indicator does not appear on the front panel. Figure 1- 2. Front Panel View of DES-3526DC Comprehensive LED indicators display the status of the Switch and the network. 2 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual LED Indicators The Switch supports LED indicators for Power, Console, RPS (DES-3526 only) and Port LEDs. The following shows the LED indicators for the DES-3526 along with an explanation of each indicator. LEDs and there corresponding meanings are displayed below. Figure 1- 3. LED Indicators on DES-3526 LED Power Console Description This LED will light green after the Switch is powered on to indicate the ready state of the device. The indicator is dark when the Switch is powered off. This LED should blink during the Power-On Self Test (POST). When the POST is finished, the LED goes dark. This indicator is lit sold green when the Switch is being logged into via out-of-band/local console management through the RS-232 console port in the back of the Switch using a straight-through serial cable. This LED will be lit when the redundant power supply is present and in use. Otherwise it will remain dark. One row of LEDs for each port is located above the ports on the front panel. The first LED is for the top port and the second one is for the bottom ports. These port LEDs will light two different colors for 10M and 100M. · · RPS (DES-3526 only) Port LEDs Amber - For speeds of 10 Mbps. A solid light denotes activity on the port while a blinking light indicates a valid link. Green - For speeds of 100 Mbps. A solid light denotes activity on the port while a blinking light indicates a valid link. 100M/10M Gigabit Ports These LEDs will light steady green to indicate that the port is transferring data at 100Mbps. The Switch's two Mini GBIC ports have their own corresponding LEDs: Speed - This LED will light solid green when the port is transferring at a rate of 1000Mbps. When dark, the port is transferring at 10/100Mbps. Link/Act - This LED will light solid green when there is a valid link. A blinking LED indicates current activity on the port. A dark LED indicates no activity on the port. 3 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Rear Panel Description The rear panel of the Switch contains an AC power connector. Figure 1- 4. Rear panel view of the DES-3526 The AC power connector is a standard three-pronged connector that supports the power cord. Plug-in the female connector of the provided power cord into this socket, and the male side of the cord into a power outlet. The Switch automatically adjusts its power setting to any supply voltage in the range from 100 ~ 240 VAC at 50 ~ 60 Hz. The rear panel also includes an outlet for an optional external power supply. When power fails, the optional external RPS will take over all the power immediately and automatically. Figure 1- 5. Rear panel view of DES-3526DC The rear panel of the DC power version of the Switch includes an opening designed to accommodate the DC power wiring assembly. See the installation instructions in this Section for details. Side Panel Description The right-hand side panel of the Switch contains a system fan, while the left hand panel includes a system fan and a heat vent. The system fans are used to dissipate heat. The sides of the system also provide heat vents to serve the same purpose. Do not block these openings, and leave at least 6 inches of space at the rear and sides of the Switch for proper ventilation. Be reminded that without proper heat dissipation and air circulation, system components might overheat, which could lead to system failure. Figure 1- 6. Side Panels 4 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Gigabit Combo Ports In addition to the 24 10/100 Mbps ports, the Switch features two Gigabit Ethernet Combo ports. These two ports are 1000BASE-T copper ports (provided) and Mini-GBIC ports (optional). See the diagram below to view the two Mini-GBIC port modules being plugged into the Switch. Please note that although these two front panel modules can be used simultaneously, the ports must be different. The GBIC port will always have the highest priority. Figure 1- 7. Mini-GBIC modules plug-in to the Switch Figure 1- 8. Installing the Mini-GBIC Module 5 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual SECTION 2 Installation Package Contents Before You Connect to the Network Installing the Switch without the Rack Rack Installation Power On Package Contents Open the shipping carton of the Switch and carefully unpack its contents. The carton should contain the following items: · · · · · · · One DES-3526 Stand-alone Switch One AC power cord This Manual Registration card Mounting kit (two brackets and screws) Four rubber feet with adhesive backing RS-232 console cable If any item is found missing or damaged, please contact your local D-Link Reseller for replacement. Before You Connect to the Network The site where you install the Switch may greatly affect its performance. Please follow these guidelines for setting up the Switch. · · · · · · · Install the Switch on a sturdy, level surface that can support at least 6.6 lb. (3 kg) of weight. Do not place heavy objects on the Switch. The power outlet should be within 1.82 meters (6 feet) of the Switch. Visually inspect the power cord and see that it is fully secured to the AC power port. Make sure that there is proper heat dissipation from and adequate ventilation around the Switch. Leave at least 10 cm (4 inches) of space at the front and rear of the Switch for ventilation. Install the Switch in a fairly cool and dry place for the acceptable temperature and humidity operating ranges. Install the Switch in a site free from strong electromagnetic field generators (such as motors), vibration, dust, and direct exposure to sunlight. When installing the Switch on a level surface, attach the rubber feet to the bottom of the device. The rubber feet cushion the Switch, protect the casing from scratches and prevent it from scratching other surfaces. 6 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Installing the Switch without the Rack When installing the Switch on a desktop or shelf, the rubber feet included with the Switch should first be attached. Attach these cushioning feet on the bottom at each corner of the device. Allow enough ventilation space between the Switch and any other objects in the vicinity. Figure 2- 1. Prepare Switch for installation on a desktop or shelf Installing the Switch in a Rack The Switch can be mounted in a standard 19" rack. Use the following diagrams to guide you. Figure 2- 2. Fasten mounting brackets to Switch Fasten the mounting brackets to the Switch using the screws provided. With the brackets attached securely, you can mount the Switch in a standard rack as shown in Figure 2-3 below. 7 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Mounting the Switch in a Standard 19" Rack CAUTION: Installing systems in a rack without the front and side stabilizers installed could cause the rack to tip over, potentially resulting in bodily injury under certain circumstances. Therefore, always install the stabilizers before installing components in the rack. After installing components in a rack, do not pull more than one component out of the rack on its slide assemblies at one time. The weight of more than one extended component could cause the rack to tip over and may result in injury. Figure 2- 3. Installing Switch in a rack Power On (AC Power) Plug one end of the AC power cord into the power connector of the Switch and the other end into the local power source outlet. After the Switch is powered on, the LED indicators will momentarily blink. This blinking of the LED indicators represents a reset of the system. Power Failure As a precaution for AC power supply units, in the event of a power failure, unplug the Switch. When power has resumed, plug the Switch back in. 8 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Connecting DC Power to DES-3526DC Follow the instructions below to connect the DC power supply of the DES-3526DC to the DC power source. Figure 2- 4. Power connections attached to contacts on assembly 1. Firmly attach the DC power to the negative and positive contacts on the wiring assembly. · The negative pole (-) connects to the -48V contact. · The positive pole (+) connects to the -48V Return contact. · If available, the earth ground may be connected to center contact post. Tighten the contact screws so the connection is secure. 2. 9 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Section 3 Connecting the Switch Switch to End Node Switch to Hub or Switch Connecting To Network Backbone or Server NOTE: All 24 high-performance NWay Ethernet ports can support both MDI-II and MDI-X connections. Switch to End Node End nodes include PCs outfitted with a 10, 100 or 1000 Mbps RJ-45 Ethernet/Fast Ethernet Network Interface Card (NIC) and most routers. An end node can be connected to the Switch via a twisted-pair Category 3, 4, or 5 UTP/STP cable. The end node should be connected to any of the ports of the Switch. Figure 3- 1. Switch connected to an end node The Link/Act LEDs for each UTP port will light green or amber when the link is valid. A blinking LED indicates packet activity on that port. 10 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Switch to Hub or Switch These connections can be accomplished in a number of ways using a normal cable. · · A 10BASE-T hub or switch can be connected to the Switch via a twisted-pair Category 3, 4 or 5 UTP/STP cable. A 100BASE-TX hub or switch can be connected to the Switch via a twisted -pair Category 5 UTP/STP cable. Figure 3- 2. Switch connected to a normal (non-Uplink) port on a hub or switch using a straight or crossover cable Connecting To Network Backbone or Server The two Mini-GBIC combo ports are ideal for unlinking to a network backbone or server. The copper ports operate at a speed of 1000, 100 or 10Mbps in full or half duplex mode. The fiber optic ports can operate at 1000Mbps in full duplex mode. Connections to the Gigabit Ethernet ports are made using fiber optic cable or Category 5 copper cable, depending on the type of port. A valid connection is indicated when the Link LED is lit. Figure 3- 3. Connecting the DES-3526 to a Server 11 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Section 4 Introduction to Switch Management Management Options Web-based Management Interface SNMP-Based Management Managing User Accounts Command Line Console Interface through the Serial Port Connecting the Console Port (RS-232 DCE) First Time Connecting to the Switch Password Protection SNMP Settings IP Address Assignment Connecting Devices to the Switch Management Options This system may be managed out-of-band through the console port on the front panel or in-band using Telnet. The user may also choose the web-based management, accessible through 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 Microsoft® Internet Explorer (version 5.0). SNMP-Based Management You can manage the Switch with an SNMP-compatible console program. The Switch supports SNMP version 1.0, version 2.0 and version 3.0. The SNMP agent decodes the incoming SNMP messages and responds to requests with MIB objects stored in the database. The SNMP agent updates the MIB objects to generate statistics and counters. Connecting the Console Port (RS-232 DCE) 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 female DB-9 connector, implemented as a data terminal equipment (DTE) connection. To use the console port, you need the following equipment: · · A terminal or a computer with both a serial port and the ability to emulate a terminal. A null modem or crossover RS-232 cable with a female DB-9 connector for the console port on the Switch. 12 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual To connect a terminal to the console port: 1. Connect the female connector of the RS-232 cable directly to the console port on the Switch, and tighten the captive retaining screws. 2. Connect the other end of the cable to a terminal or to the serial connector of a computer running terminal emulation software. Set the terminal emulation software as follows: 3. Select the appropriate serial port (COM port 1 or COM port 2). 4. Set the data rate to 9600 baud. 5. Set the data format to 8 data bits, 1 stop bit, and no parity. 6. Set flow control to none. 7. Under Properties, select VT100 for Emulation mode. 8. Select Terminal keys for Function, Arrow, and Ctrl keys. Ensure that you select Terminal keys (not Windows keys). NOTE: When you use HyperTerminal with the Microsoft® Windows® 2000 operating system, ensure that you have Windows 2000 Service Pack 2 or later installed. Windows 2000 Service Pack 2 allows you to use arrow keys in HyperTerminal's VT100 emulation. See www.microsoft.com for information on Windows 2000 service packs. 9. 10. 11. After you have correctly set up the terminal, plug the power cable into the power receptacle on the back of the Switch. The boot sequence appears in the terminal. After the boot sequence completes, the console login screen displays. If you have not logged into the command line interface (CLI) program, press the Enter key at the User name and password prompts. There is no default user name and password for the Switch. The administrator must first create user names and passwords. If you have previously set up user accounts, log in and continue to configure the Switch. Enter the commands to complete your desired tasks. Many commands require administrator-level access privileges. Read the next section for more information on setting up user accounts. See the DES-3526 Command Line Interface Reference Manual on the documentation CD for a list of all commands and additional information on using the CLI. When you have completed your tasks, exit the session with the logout command or close the emulator program. 12. 13. Make sure the terminal or PC you are using to make this connection is configured to match these settings. If you are having problems making this connection on a PC, make sure the emulation is set to VT-100. You will be able to set the emulation by clicking on the File menu in you HyperTerminal window, clicking on Properties in the drop-down menu, and then clicking the Settings tab. This is where you will find the Emulation options. If you still do not see anything, try rebooting the Switch by disconnecting its power supply. Once connected to the console, the screen below will appear on your console screen. This is where the user will enter commands to perform all the available management functions. The Switch will prompt the user to enter a user name and a password. Upon the initial connection, there is no user name or password and therefore just press enter twice to access the command line interface. Figure 4- 1. Initial screen after first connection 13 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual First Time Connecting to the Switch The Switch supports user-based security that can allow you to prevent unauthorized users from accessing the Switch or changing its settings. This section tells how to log onto the Switch. NOTE: The passwords used to access the Switch are case-sensitive; therefore, "S" is not the same as "s." When you first connect to the Switch, you will be presented with the first login screen. NOTE: Press Ctrl+R to refresh the screen. This command can be used at any time to force the console program in the Switch to refresh the console screen. Press Enter in both the Username and Password fields. You will be given access to the command prompt DES-3526:4# shown below: There is no initial username or password. Leave the Username and Password fields blank. Figure 4- 2. Command Prompt NOTE: The first user automatically gets Administrator level privileges. It is recommended to create at least one Admin-level user account for the Switch. Password Protection The DES-3526 does not have a default user name and password. One of the first tasks when settings 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. After your initial login, define new passwords for both default user names to prevent unauthorized access to the Switch, and record the passwords for future reference. To create an administrator-level account for the Switch, do the following: · · · · At the CLI login prompt, enter create account admin followed by the and press the Enter key. You will be asked to provide a password. Type the used for the administrator account being created and press the Enter key. You will be prompted to enter the same password again to verify it. Type the same password and press the Enter key. Successful creation of the new administrator account will be verified by a Success message. 14 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual NOTE: Passwords are case sensitive. User names and passwords can be up to 15 characters in length. The sample below illustrates a successful creation of a new administrator-level account with the user name "newmanager". DES-3526:4#create account admin newmanager Command: create account admin newmanager Enter a case-sensitive new password:******** Enter the new password again for confirmation:******** Success. DES-3526:4# NOTICE: CLI configuration commands only modify the running configuration file and are not saved when the Switch is rebooted. To save all your configuration changes in nonvolatile storage, you must use the save command to copy the running configuration file to the startup configuration. 15 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual SNMP Settings Simple Network Management Protocol (SNMP) is an OSI Layer 7 (Application Layer) designed specifically for managing and monitoring network devices. SNMP enables network management stations to read and modify the settings of gateways, routers, switches, and other network devices. Use SNMP to configure system features for proper operation, monitor performance and detect potential problems in the Switch, switch group or network. Managed devices that support SNMP include software (referred to as an agent), which runs locally on the device. A defined set of variables (managed objects) is maintained by the SNMP agent and used to manage the device. These objects are defined in a Management Information Base (MIB), which provides a standard presentation of the information controlled by the on-board SNMP agent. SNMP defines both the format of the MIB specifications and the protocol used to access this information over the network. The DES-3526 supports SNMP versions 1, 2c, and 3. You can specify which version of 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. In SNMP v.1 and v.2, user authentication is accomplished using 'community strings', which function like passwords. The remote user SNMP application and the Switch SNMP must use the same community string. SNMP packets from any station that has not been authenticated are ignored (dropped). The default community strings for the Switch used for SNMP v.1 and v.2 management access are: · · public - Allows authorized management stations to retrieve MIB objects. private - Allows authorized management stations to retrieve and modify MIB objects. SNMP v.3 uses a more sophisticated authentication process that is separated into two parts. The first part is to maintain a list of users and their attributes that are allowed to act as SNMP managers. The second part describes what each user on that list can do as an SNMP manager. The Switch allows groups of users to be listed and configured with a shared set of privileges. The SNMP version may also be set for a listed group of SNMP managers. Thus, you may create a group of SNMP managers that are allowed to view read-only information or receive traps using SNMP v.1 while assigning a higher level of security to another group, granting read/write privileges using SNMP v.3. Using SNMP v.3 individual users or groups of SNMP managers can be allowed to perform or be restricted from performing specific SNMP management functions. The functions allowed or restricted are defined using the Object Identifier (OID) associated with a specific MIB. An additional layer of security is available for SNMP v.3 in that SNMP messages may be encrypted. To read more about how to configure SNMP v.3 settings for the Switch read the section entitled Management. Traps Traps are messages that alert network personnel of events that occur on the Switch. The events can be as serious as a reboot (someone accidentally turned OFF the Switch), or less serious like a port status change. The Switch generates traps and sends them to the trap recipient (or network manager). Typical traps include trap messages for Authentication Failure, Topology Change and Broadcast\Multicast Storm. MIBs The Switch in the Management Information Base (MIB) stores management and counter information. The Switch uses the standard MIB-II Management Information Base module. Consequently, values for MIB objects can be retrieved from any SNMPbased network management software. In addition to the standard MIB-II, the Switch also supports its own proprietary enterprise MIB as an extended Management Information Base. Specifying the MIB Object Identifier may also retrieve the proprietary MIB. MIB values can be either read-only or read-write. 16 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual 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. You can change the default Switch IP address to meet the specification of your networking address scheme. The Switch is also assigned a unique MAC address by the factory. This MAC address cannot be changed, and can be found by entering the command "show switch" into the command line interface, as shown below. Figure 4- 3. Show switch command The Switch's MAC address can also be found from the Web management program on the Switch Information (Basic Settings) window on the Configuration menu. The IP address for the Switch must be set before it can be managed with the Web-based manager. The Switch IP address can be automatically set using BOOTP or DHCP protocols, in which case the actual address assigned to the Switch must be known. The IP address may be set using the Command Line Interface (CLI) over the console serial port as follows: Starting at the command line prompt, enter the commands config ipif System ipaddress xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy Where the x's represent the IP address to be assigned to the IP interface named System and the y's represent the corresponding subnet mask. Alternatively, you can enter config ipif System ipaddress xxx.xxx.xxx.xxx/z. Where the x's represent the IP address to be assigned to the IP interface named System and the z represents the corresponding number of subnets in CIDR notation. The IP interface named System on the Switch can be assigned an IP address and subnet mask, and then be used to connect a management station to the Switch's Telnet or Web-based management agent. 17 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Figure 4- 4. Assigning the Switch an IP Address In the above example, the Switch was assigned an IP address of 10.41.44.254 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. Connecting Devices to the Switch After you assign IP addresses to the Switch, you can connect devices to the Switch. To connect a device to an SFP transceiver port: · · · Use your cabling requirements to select an appropriate SFP transceiver type. Insert the SFP transceiver (sold separately) into the SFP transceiver slot. Use the appropriate network cabling to connect a device to the connectors on the SFP transceiver. NOTICE: When the SFP transceiver acquires a link, the associated integrated 10/100/1000BASE-T port is disabled. 18 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Section 5 Web-based Switch Configuration Introduction Login to Web manager Web-Based User Interface Basic Setup Reboot Basic Switch Setup Network Management Switch Utilities Network Monitoring IGMP Snooping Status Introduction All software functions of the DES-3526 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 Opera, 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. The Web-based management module and the Console program (and Telnet) are different ways to access the same internal switching software and configure it. Thus, all settings encountered in web-based management are the same as those found in the console program. Login to Web Manager To begin managing your Switch, simply run the browser you have installed on your computer and point it to the IP address you have defined for the device. The URL in the address bar should read something like: http://123.123.123.123, where the numbers 123 represent the IP address of the Switch. NOTE: The Factory default IP address for the Switch is 10.90.90.90. In the page that opens, click on the Login to make a setup button: Figure 5- 1. Login hyperlink This opens the management module's user authentication window, as seen below. 19 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Figure 5- 2. Enter Network Password window Leave both the User Name field and the Password field blank and click OK. This will open the Web-based user interface. The Switch management features available in the web-based manager are explained below. Web-based User Interface The user interface provides access to various Switch configuration and management screens, allows you to view performance statistics, and permits you to graphically monitor the system status. Areas of the User Interface The figure below shows the user interface. The user interface is divided into three distinct areas as described in the table. Area 2 Area 3 Area 1 Figure 5- 3. Main Web-Manager page Area Area 1 Function 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 a graphical near real-time image of the front panel of the Switch. This area displays the Switch's ports and expansion modules, showing port activity, duplex mode, or flow control, depending on the specified mode. Various areas of the graphic can be selected for performing management functions, including port configuration. Presents switch information based on your selection and the entry of configuration data. Area 2 Area 3 20 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual 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 window is displayed. Enter a user name and password to access the Switch's management mode. Below is a list and description of the main folders available in the web interface: Configurations ­ Contains windows concerning configurations for IP Address, Switch Information, Advanced Settings, Port Configuration, IGMP, Spanning Tree, Forwarding Filtering, VLANs, Port Bandwidth, SNTP Settings, Port Security, QoS, MAC Notification, LACP, Access Profile Table, System Log Servers, PAE Access Entity, and Layer 3 IP Networking. Security Management ­ Contains windows concerning configurations for Security IP, User Accounts, Access Authentication Control (TACACS), Secure Sockets Layer (SSL), Secure Shell (SSH), and SNMP V3. Monitoring ­ Contains windows concerning monitoring the Switch, pertaining to Port Utilization, CPU Utilization, Packets, Errors Size, MAC Address, IGMP Snooping Group, IGMP Snooping Forwarding, VLAN Status, Router Port, Port Access Control and Layer 3 Feature. Maintenance ­ Contains windows concerning configurations and information about Switch maintenance, including TFTP Services, Switch History, Ping Test, Save Changes, Reboot Services, and Logout. Single IP Management ­ Contains windows concerning information on Single IP Management, including SIM Settings, Topology, and Firmware/Configuration downloads. NOTE: Be sure to configure the user name and password in the User Accounts menu before connecting the Switch to the greater network. 21 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Section 6 Configuring the Switch Switch Information IP Address Advanced Settings Port Configuration Port Description Port Mirroring Link Aggregation LACP Port Setting MAC Notification IGMP Spanning Tree Forward Filtering VLANs Traffic Control Port Security QoS System Log Servers SNTP Settings Access Profile Table Port Access Entity IP-Mac Binding Limited IP Multicast Range 22 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Switch Information The subsections below describe how to change some of the basic settings for the Switch such as changing IP settings and assigning user names and passwords for management access privileges, as well as how to save the changes and restart the Switch. Click the Switch Information link in the Configuration menu. Figure 6- 1. Switch Information (Basic Settings) window The Switch Information (Basic Settings) window shows the Switch's MAC Address (assigned by the factory and unchangeable), the Boot PROM, Firmware Version, and Hardware Version. This information is helpful to keep track of PROM and firmware updates and to obtain the Switch's MAC address for entry into another network device's address table, if necessary. The user may also enter a System Name, System Location and System Contact to aid in defining the Switch, to the user's preference. IP Address The IP Address 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 DES-3526 Command Line Interface Manual or return to Section 4 of this manual for more information. To change IP settings using the web manager you must access the IP Address menu located in the Configuration folder. To configure the Switch's IP address: Open the Configuration folder and click the IP Address menu link. The web manager will display the Switch's current IP settings in the IP configuration menu, as seen below. Figure 6- 2. IP Address Settings window 23 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual To manually assign the Switch's IP address, subnet mask, and default gateway address: 1. Select Manual from the Get IP From drop-down menu. 2. Enter the appropriate IP Address and Subnet Mask. 3. If you want to access the Switch from a different subnet from the one it is installed on, enter the IP address of the Default Gateway. If you will manage the Switch from the subnet on which it is installed, you can leave the default address (0.0.0.0) in this field. 4. If no VLANs have been previously configured on the Switch, you can use the default VLAN Name. The default VLAN contains all of the Switch ports as members. If VLANs have been previously configured on the Switch, you will need to enter the VLAN ID of the VLAN that contains the port connected to the management station that will access the Switch. The Switch will allow management access from stations with the same VID listed here. NOTE: The Switch's factory default IP address is 10.90.90.90 with a subnet mask of 255.0.0.0 and a default gateway of 0.0.0.0. To use the BOOTP or DHCP protocols to assign the Switch an IP address, subnet mask, and default gateway address. Use the Get IP From pull-down menu to choose from BOOTP or DHCP. This selects how the Switch will be assigned an IP address on the next reboot. NOTE: If you enable the AutoConfig, the Get IP From setting will automatically become DHCP. The IP Address Settings options are: Parameter BOOTP Description The Switch will send out a BOOTP broadcast request when it is powered up. The BOOTP protocol allows IP addresses, network masks, and default gateways to be assigned by a central BOOTP server. If this option is set, the Switch will first look for a BOOTP server to provide it with this information before using the default or previously entered settings. The Switch will send out a DHCP broadcast request when it is powered up. The DHCP protocol allows IP addresses, network masks, and default gateways to be assigned by a DHCP server. If this option is set, the Switch will first look for a DHCP server to provide it with this information before using the default or previously entered settings. Allows the entry of an IP address, Subnet Mask, and a Default Gateway for the Switch. These fields should be of the form xxx.xxx.xxx.xxx, where each xxx is a number (represented in decimal form) between 0 and 255. This address should be a unique address on the network assigned for use by the network administrator. A Bitmask that determines the extent of the subnet that the Switch is on. Should be of the form xxx.xxx.xxx.xxx, where each xxx is a number (represented in decimal) between 0 and 255. The value should be 255.0.0.0 for a Class A network, 255.255.0.0 for a Class B network, and 255.255.255.0 for a Class C network, but custom subnet masks are allowed. IP address that determines where packets with a destination address outside the current subnet should be sent. This is usually the address of a router or a host acting as an IP gateway. If your network is not part of an intranet, or you do not want the Switch to be accessible outside your local network, you can leave this field unchanged. This allows the entry of a VLAN Name from which a management station will be allowed to manage the Switch using TCP/IP (in-band via web manager or Telnet). Management stations that are on VLANs other than the one entered here will not be able to manage the Switch in-band unless their IP addresses are entered in the Security IP Management menu. If VLANs have not yet been configured for the Switch, the default VLAN contains all of the Switch's ports. There are no entries in the Security IP Management table, by default, so any management station that can connect to the Switch can access the Switch until a management VLAN is specified or Management Station IP Addresses are assigned. This allows the user to enable or disable the Admin State for the IP interface, by the using the pulldown menu. Disabling this feature will render all remote management inoperable, and thus the only way to configure the Switch will be to use the Console port for the Command Line Interface. 24 DHCP Manual Subnet Mask Default Gateway VLAN Name Admin State xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Auto Config State When autoconfig is enabled, the Switch is instructed to get a configuration file via TFTP, and it becomes a DHCP client automatically. The configuration file will be loaded upon booting up. In order to use Auto Config, the DHCP server must be set up to deliver the TFTP server IP address and configuration file name information in the DHCP reply packet. The TFTP server must be running and have the requested configuration file stored in its base directory when the request is received from the Switch. Consult the DHCP server and/or TFTP server software instructions for information on loading a configuration file for use by a client. (Also see the section titled Upload Configuration for instructions on uploading a configuration to a TFTP server. If the Switch is unable to complete the autoconfiguration process the previously saved configuration file present in Switch memory will be loaded. Click Apply to let your changes take effect. 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. You can change the default Switch IP address to meet the specification of your networking address scheme. The IP address for the Switch must be set before it can be managed with the Web-based manager. The Switch IP address can be automatically set using BOOTP or DHCP protocols, in which case the actual address assigned to the Switch must be known. The IP address may be set using the Command Line Interface (CLI) over the console serial port as follows: · Starting at the command line prompt, enter the commands config ipif System ipaddress xxx.xxx.xxx.xxx/ yyy.yyy.yyy.yyy. Where the x's represent the IP address to be assigned to the IP interface named System and the y's represent the corresponding subnet mask. Alternatively, you can enter config ipif System ipaddress xxx.xxx.xxx.xxx/z. Where the x's represent the IP address to be assigned to the IP interface named System and the z represents the corresponding number of subnets in CIDR notation. · The IP interface named System on the Switch can be assigned an IP address and subnet mask which can then be used to connect a management station to the Switch's Telnet or Web-based management agent. 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 agent using the above IP address to connect to the Switch. 25 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Advanced Settings The Switch Information (Advanced Settings) window contains the main settings for all major functions for the Switch. To view the Advanced Settings window, click its link in the Configuration folder. This will enable the following window to be viewed and configured. Figure 6- 3. Switch Information (Advanced Settings) window Parameter Serial Port Auto Logout Time MAC Address Aging Time Description Select the logout time used for the console interface. This automatically logs the user out after an idle period of time, as defined. Choose from the following options: 2 Minutes, 5 Minutes, 10 Minutes, 15 Minutes or Never. The default setting is 10 minutes. This field specifies the length of time a learned MAC Address will remain in the forwarding table without being accessed (that is, how long a learned MAC Address is allowed to remain idle). To change this, type in a different value representing the MAC address age-out time in seconds. The MAC Address Aging Time can be set to any value between 10 and 1,000,000 seconds. The default setting is 300 seconds. 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 window under the IGMP folder. Use this pull-down menu to enable or disable GVRP on the Switch. Telnet configuration is Enabled by default. If you do not want to allow configuration of the system through Telnet choose Disabled. The TCP port number. TCP ports are numbered between 1 and 65535. The "well-known" TCP port for the Telnet protocol is 23. Web-based management is Enabled by default. If you choose to disable this by selecting Disabled, you will lose the ability to configure the system through the web interface as soon as these settings are applied. The TCP port number currently being utilized by the Switch to connect to the web interface. The "well-known" TCP port for the Web interface is 80. 26 IGMP Snooping GVRP Status Telnet Status TCP Port Number (165535) Web Status Web TCP Port Number xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Link Aggregation Algorithm The algorithm that the Switch uses to balance the load across the ports that make up the port trunk group is defined by this definition. Choose MAC Source, MAC Destination, MAC Src & Dest, IP Source, IP Destination or IP Src & Dest (See the Link Aggregation section of this manual). Remote monitoring (RMON) of the Switch is Enabled or Disabled here. MAC Address may enable by port or the Switch's 802.1x function; the default is Disabled. This field must be enabled to view and configure certain windows for 802.1x. More information regarding 802.1x, its functions and implementation can be found later in this section, under the Port Access Entity folder. Port-Based 802.1x specifies that ports configured for 802.1x are initialized based on the port number only and are subject to any authorization parameters configured. MAC-based Authorization specifies that ports configured for 802.1x are initialized based on the port number and the MAC address of the computer being authorized and are then subject to any authorization parameters configured. The user may use the pull-down menu to choose between radius eap and radius pap for the 802.1x authentication protocol on the Switch. The default setting is radius eap. This field will enable or disable Asymmetric VLANs on the Switch. The default is Disabled. Enables or disables Syslog State; default is Disabled. RMON Status 802.1x Status 802.1x Authentication Protocol Asymmetric VLAN Syslog Global State Click Apply to implement changes made. NOTE: When the Asymmetric VLAN function is Disabled, the user must change the VLAN setting on the Switch to its default configurations. 27 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Port Configurations This section contains information for configuring various attributes and properties for individual physical ports, including port speed and flow control. Clicking on Port Configurations in the Configuration menu will display the following window for the user: Figure 6- 4. Port Configuration window To configure switch ports: 1. Choose the port or sequential range of ports using the From...To... port pull-down menus. 2. Use the remaining pull-down menus to configure the parameters described below: Parameter State Speed/Duplex Description Toggle the State field to either enable or disable a given port or group of ports. Toggle the Speed/Duplex field to either select the speed and duplex/half-duplex state of the port. Auto denotes auto-negotiation between 10 and 100 Mbps devices, in full- or half-duplex. The Auto setting allows the port to automatically determine the fastest settings the device the port is connected to can handle, and then to use those settings. The other options are Auto, 10M/Half, 10M/Full, 100M/Half and 100M/Full. There is no automatic adjustment of port settings with any option other than Auto. 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. The default is Disabled. Enable or disable MAC address learning for the selected ports. When Enabled, destination and source MAC addresses are automatically listed in the forwarding table. When learning is Disabled, MAC addresses must be manually entered into the forwarding table. This is sometimes done for reasons of security or efficiency. See the section on Forwarding/Filtering for information on entering MAC addresses into the forwarding table. The default setting is Disabled. Flow Control Learn Click Apply to implement the new settings on the Switch. 28 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Port Description The DES-3526 supports a port description feature where the user may name various ports on the Switch. To assign names to various ports, click the Port Description on the Configuration menu: Figure 6- 5. Port Description Setting window Use the From and To pull down menu to choose a port or range of ports to describe, and then enter a description of the port(s). Click Apply to set the descriptions in the Port Description Table. 29 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Port Mirroring The Switch allows you to copy frames transmitted and received on a port and redirect the copies to another port. You can attach a monitoring device to the mirrored port, such as a sniffer or an RMON probe, to view details about the packets passing through the first port. This is useful for network monitoring and troubleshooting purposes. To view the Port Mirroring window, click Port Mirroring in the Configuration folder. Figure 6- 6. Setup Port Mirroring window To configure a mirror port: · · · Select the Source Port from where you want to copy frames and the Target Port, which receives the copies from the source port. Select the Source Direction, Ingress, Egress, or Both and change the Status drop-down menu to Enabled. Click Apply to let the changes take effect. 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. The port you are copying frames from should always support an equal or lower speed than the port to which you are sending the copies. Also, the target port for the mirroring cannot be a member of a trunk group. Please note a target port and a source port cannot be the same port. 30 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Link Aggregation Understanding Port Trunk Groups Port trunk groups are used to combine a number of ports together to make a single high-bandwidth data pipeline. The DES-3526 supports up to six port trunk groups with 2 to 8 ports in each group. A potential bit rate of 8000 Mbps can be achieved. Figure 6- 7. Example of Port Trunk Group The Switch treats all ports in a trunk group as a single port. Data transmitted to a specific host (destination address) will always be transmitted over the same port in a trunk group. This allows packets in a data stream to arrive in the same order they were sent. NOTE: If any ports within the trunk group become disconnected, packets intended for the disconnected port will be load shared among the other unlinked ports of the link aggregation group. 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. Link aggregation is most commonly used to link a bandwidth intensive network device or devices, such as a server, to the backbone of a network. The Switch allows the creation of up to six link aggregation groups, each group consisting of 2 to 8 links (ports). The aggregated links must be contiguous (they must have sequential port numbers) except the two (optional) Gigabit ports, which can only belong to a single link aggregation group. All of the ports in the group must be members of the same VLAN, and their STP status, static multicast, traffic control; traffic segmentation and 802.1p default priority configurations must be identical. Port locking, port mirroring and 802.1X must not be enabled on the trunk group. Further, the aggregated links must all be of the same speed and should be configured as full duplex. The Master Port of the group is to be configured by the user, and all configuration options, including the VLAN configuration that can be applied to the Master Port, are applied to the entire link aggregation group. Load balancing is automatically applied to the ports in the aggregated group, and a link failure within the group causes the network traffic to be directed to the remaining links in the group. The Spanning Tree Protocol will treat a link aggregation group as a single link, on the switch level. On the port level, the STP will use the port parameters of the Master Port in the calculation of port cost and in determining the state of the link aggregation group. If two redundant link aggregation groups are configured on the Switch, STP will block one entire group; in the same way STP will block a single port that has a redundant link. To configure port trunking, click on the Link Aggregation hyperlink in the Configuration folder to bring up the following window: 31 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Figure 6- 8. Port Link Aggregation Group window To configure port trunk groups, click the Add button to add a new trunk group and use the Link Aggregation Settings window (see example below) to set up trunk groups. To modify a port trunk group, click the Modify button corresponding to the entry you wish to alter. To delete a port trunk group, click the corresponding X under the Delete heading in the Current Link Aggregation Group Entries table. Figure 6- 9. Link Aggregation Settings window ­ Add Figure 6- 10. Link Aggregation Settings window - Modify The user-changeable parameters are as follows: 32 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual Parameter Group ID State Description Select an ID number for the group, between 1 and 6. Trunk groups can be toggled between Enabled and Disabled. This is used to turn a port trunking group on or off. This is useful for diagnostics, to quickly isolate a bandwidth intensive network device or to have an absolute backup aggregation group that is not under automatic control. Choose the Master Port for the trunk group using the pull-down menu. Choose the members of a trunked group. Up to eight ports per group can be assigned to a group. A trunking group must designate one port to allow transmission of broadcasts and unknown unicasts. Shows the port that is currently forwarding packets. This pull-down menu allows you to select between Static and LACP (Link Aggregation Control Protocol). LACP allows for the automatic detection of links in a Port Trunking Group. Master Port Member Ports Flooding Port Active Port Type After setting the previous parameters, click Apply to allow your changes to be implemented. Successfully created trunk groups will be show in the Current Link Aggregation Group Entries table as seen in Figure 6-8. 33 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual LACP Port Setting The LACP Port Setting window is used in conjunction with the Link Aggregation window to create port trunking groups on the Switch. Using the following window, the user may set which ports will be active and passive in processing and sending LACP control frames. Figure 6- 11. LACP Port Settings window The user may set the following parameters: Parameter From/To Mode Description A consecutive group of ports may be configured starting with the selected port. Active - Active LACP ports are capable of processing and sending LACP control frames. This allows LACP compliant devices to negotiate the aggregated link so the group may be changed dynamically as needs require. In order to utilize the ability to change an aggregated port group, that is, to add or subtract ports from the group, at least one of the participating devices must designate LACP ports as active. Both devices must support LACP. Passive - LACP ports that are designated as passive cannot initially send LACP control frames. In order to allow the linked port group to negotiate adjustments and make changes dynamically, one end of the connection must have "active" LACP ports (see above). After setting the previous parameters, click Apply to allow your changes to be implemented. The LACP Port Table shows which ports are active and/or passive. 34 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual MAC Notification MAC Notification is used to monitor MAC addresses learned and entered into the forwarding database. MAC Notification Global Settings To globally set MAC notification on the Switch, open the following window by opening the MAC Notification folder and clicking the MAC Notification Global Settings link: Figure 6- 12. MAC Notification Global Settings window The following parameters may be modified: Parameter State Interval (sec) History size Description Enable or disable MAC notification globally on the Switch The time in seconds between notifications. The maximum number of entries listed in the history log used for notification. Up to 500 entries can be specified. 35 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual MAC Notification Port Settings To change MAC notification settings for a port or group of ports on the Switch, click Port Settings in the MAC Notification folder, which will display the following window: Figure 6- 13. MAC Notification Port Settings window The following parameters may be set: Parameter From...To State Description Select a port or group of ports to enable for MAC notification using the pull-down menus. Enable MAC Notification for the ports selected using the pull-down menu. Click Apply to implement changes made. 36 xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual IGMP Internet Group Management Protocol (IGMP) snooping allows the Switch to recognize IGMP queries and reports sent between network stations or devices and an IGMP host. When enabled for IGMP snooping, the Switch can open or close a port to a specific device based on IGMP messages passing through the Switch. 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 link in the Configuration folder. 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. The Switch monitors IGMP messages and discontinues forwarding multicast packets when there are no longer hosts requesting that they continue. IGMP Snooping Use the Current IGMP Snooping Group Entries window to view IGMP Snooping settings. To modify the settings, click the Modify button of the VLAN ID you want to change. Figure 6- 14. Current IGMP Snooping Group Entries window Clicking the Modify button will open the IGMP Snooping Settings window, shown below: Figure 6- 15. IGMP Snooping Settings window 37