® SUPERSTACK II SWITCH 2000 TR TOKEN RING-IN-FAST ETHERNET MODULE For SuperStack II Switch 2000 TR http://www.3com.com/ Part No.
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Installation 3-2 Post-Installation Checks 3-3 LED Summary 3-3 Checking the Power Supply 3-4 Checking that the TR-in-FE Module is Installed Correctly 3-5 Checking the Physical Connections 3-5 Jumper Settings 3-6 ABOUT THIS GUIDE Introduction 1 Terminology 1 Finding Information in this Guide Conventions 2 1 2 OVERVIEW About the SuperStack II Switch 2000 TR TR-in-FE Module 1-1 TR-in-FE Benefits 1-2 Summary of TR-in-FE Module Features 1-3 Hardware 1-3 Software 1-3 2 INSTALLING AND SETTING UP THE MODULE Fo
TR VLAN Setup Screen 6 5-5 Returning Products for Repair MONITORING THE TR-IN-FE MODULE 3COM CORPORATION LIMITED WARRANTY TR-in-FE Module Statistics Map 6-1 Statistics Overview 6-2 Port Statistics (Traffic) 6-3 Clearing Screen Counters 6-4 A SAFETY INFORMATION Important Safety Information A-1 L’information de Sécurité Importante A-1 Wichtige Sicherheitsinformationen A-2 B SCREEN ACCESS RIGHTS C TR-IN-FE MODULE TECHNICAL SPECIFICATIONS Environmental Specifications C-1 TR-in-FE Cable Specification
ABOUT THIS GUIDE Introduction This guide provides the information needed to install and configure the SuperStack II Switch 2000 TR Token Ring-in-Fast Ethernet (TR-in-FE) Module. For more information about the switch itself, see the SuperStack II Switch 2000 TR User Guide. The SuperStack II Switch 2000 TR Token Ring-in-Fast Ethernet Module Guide is intended for use by network administrators responsible for installing and setting up networking equipment.
2 CHAPTER : ABOUT THIS GUIDE Finding Information in this Guide Conventions The following table shows you where to find specific information within this guide. Table 1 and Table 2 list icon and text conventions that are used throughout this guide.
1 OVERVIEW This chapter describes the major features and benefits of the SuperStack II Switch 2000 TR TR-in-FE Module, including: ■ About the SuperStack II Switch 2000 TR TR-in-FE Module ■ TR-in-FE Benefits ■ Summary of TR-in-FE Module Features About the SuperStack II Switch 2000 TR TR-in-FE Module The SuperStack II Switch 2000 TR TR-in-FE module combines Token Ring and Fast Ethernet (FE) for the purpose of utilizing FE as a backbone and method of high-speed server attachment for TR networks.
1-2 CHAPTER 1: OVERVIEW TR-in-FE Benefits Increasingly, Token Ring users are deploying switches to segment their networks and to increase available bandwidth to their workgroups. This has resulted in a demand for more server bandwidth as well as high-speed aggregation and switching. Previously, those users wanting their Token Ring server bandwidth increased beyond 32 Mbps faced limited options. They could add either FDDI or ATM downlinks to their Token Ring switches–options that proved costly and complex.
Summary of TR-in-FE Module Features Summary of TR-in-FE Module Features The following lists summarize the features of the SuperStack II Switch 2000 TR TR-in-FE module.
1-4 CHAPTER 1: OVERVIEW
2 TR-IN-FE CONCEPTS This chapter provides an introduction to Token Ring-in-Fast Ethernet concepts for users who are unfamiliar with this technology.
2-2 CHAPTER 2: TR-IN-FE CONCEPTS TR-in-FE Compared to Traditional Methods Traditional means of combining Token Ring, Ethernet, and Fast Ethernet include bridging and routing. With routing, frame forwarding decisions are made in software by looking into the network layer of each frame and modifying the frame to reflect the standard format of the media for which it is destined. Similarly, bridging between these media may be accomplished using Translational Bridging, sometimes referred to as SRTB or SRTG.
How TR-in-FE Works 2-3 How TR-in-FE Works Figure 2-1 shows a diagram of a basic TR-in-FE system. The illustration depicts three Switch 2000 TRs interfacing with a Switch 3000 through the Token Ring-in-Fast Ethernet Module. In this example, the Switch 3000 acts as an 800 Mbps point of aggregation for this system with multiple FDX Fast Ethernet pipes feeding it.
2-4 CHAPTER 2: TR-IN-FE CONCEPTS ssis r Cha uilde CoreB et thern Fast E r e Serv tack uperS X 000 T itch 1 II Sw Dir witch II S Stack r Supe et thern Fast E s r e Serv g n Rin Toke s r e v r Se Supe TX 3000 itch R II Sw ch 2000 T m k c it te rSta Supe tack II Sw ower Sys P rS Supe edundant II R k c ta S r Figure 2-2 Large scale example of a TR-in-FE configuration.
Tunneling 2-5 Tunneling Token Ring Header Information This section describes tunneling, the method by which Token Ring frames are encapsulated (embedded) within Ethernet frames. Frames are sets of bits that form an elementary block of data to be sent over a communications channel. A frame contains its own control information, including the transmission address and data for error detection.
2-6 CHAPTER 2: TR-IN-FE CONCEPTS The Tag Header carries a Tag Protocol Identifier (TPID) that identifies the frame as a Tagged Frame.
Virtual LANs (VLANS) Virtual LANs (VLANS) What is a VLAN A VLAN is defined as a group of location- and topology- independent devices that communicate as though they were on the same physical LAN. This means that they are not restricted by the hardware that physically connects them, and segments are defined by flexible user groups created by the user.
2-8 CHAPTER 2: TR-IN-FE CONCEPTS
3 INSTALLING AND SETTING UP THE MODULE This chapter includes important safety and configuration information, including: ■ Following Safety Information ■ Pre-installation Procedure ■ Installation ■ Post-Installation Checks Following Safety Information WARNING:Before installing or removing any components of a device, or carrying out any maintenance work, you must read the safety information provided in Appendix A, “Safety Information” of this guide. Disconnect the device from the main power supply.
3-2 CHAPTER 3: INSTALLING AND SETTING UP THE MODULE maximum inter-station distance (including device-to-network connectors) should not exceed two kilometers (1.25 miles) for full duplex. For half duplex, the maximum inter-station distance should not exceed 300 meters. Installation This section explains how to install the TR-in-FE Module into a SuperStack II Switch 2000 TR device. Installation is similar for all devices compatible with the TR-in-FE Module.
Post-Installation Checks Token Ring-in-Fast Ethernet Module Rx Far End Status Tx Link Status Rx 3-3 3C510630 Tx Reset Console Port 9600,8,1,N Figure 3-1 Installing the TR-in-FE Module Post-Installation Checks This section describes the LEDs and basic checks used to verify your installation, and to ensure that the Switch and TR-in-FE Module operate correctly. LED Summary This section describes the LEDs that provide status and troubleshooting information.
3-4 CHAPTER 3: INSTALLING AND SETTING UP THE MODULE Table 3-1 Front Panel LEDs on the Switch 2000 TR LED Name Color/State MGMT Green ON (On the front of the Switch) Green fast flashing Indicates LED Name Color/State Indicates Switch and TR-in-FE Module are operating normally. Full Duplex Green ON Full duplex link is on (port configured for full duplex operation). Software download taking place. The Switch and TR-in-FE Module are initializing (for example, undergoing a Power On Self Test).
Post-Installation Checks a Check that the power supply is plugged into the device using a power outlet that is known to be working or that the RPS is powered. b Check that the main power supply switch on the wall is set to the ON position. c Check and, if necessary, change the fuse on the Switch or plug. See the user guide that accompanies your Switch device for details about fuses. d Replace the power cable with a cable known to be working. e Contact 3Com Technical Support.
3-6 CHAPTER 3: INSTALLING AND SETTING UP THE MODULE h Check that your cable meets Fast Ethernet specifi- cations. See Appendix C. i Replace the cable, and check the Link Status LED again. j Contact 3Com Technical Support; see “Support from 3Com”, in Appendix D. Jumper Settings The Module can be easily damaged by electrostatic discharge. Before handling the module, please observe safety and electrostatic discharge precautions. You can configure the TR-in-FE module to operate as MDI (default) or MDIX.
4 ACCESSING MANAGEMENT FEATURES The menu-driven user interface built into the device is known as the VT100 or Local Management interface. The VT100 management interface has a forms-based structure with pre-defined security levels, enabling access to be restricted to particular users. This chapter provides information on the following: The VT100 Console This section describes the screen conventions used in the Switch 2000 TR VT100 console interface.
4-2 CHAPTER 4: ACCESSING MANAGEMENT FEATURES Text enclosed in square brackets on the screen indicates a text entry field. This field may be text, numeric data, or hexadecimal data. Password fields are hidden; the text you type is not shown on the screen. In some cases an Entry field has a default entry. To change the default value, simply type in a new value for this field and the default entry will be erased. Press [Down Arrow] or [Return] to move on to the next field.
Console Menu Map and deletes a character. To delete more than one character, press the key once for each character. Check carefully before using the Control keys. If you are using Telnet or a terminal emulation program you may find that some Control keys do not work the same or that they control other functions. Refer to the documentation that accompanies your Telnet or terminal emulation software. Default Users The resident management console allows three default user types.
4-4 CHAPTER 4: ACCESSING MANAGEMENT FEATURES Switch 2000 Main Banner Switch 2000 Logon Switch 2000 Main Menu Quick Setup User Access Levels Status Stack Bridge Setup Local Security Fault Log Unit TR Port Setup Switch Management Port VLAN VLAN Info Setup Statistics TR Port Stats Traffic Statistics Setup Create User Traps Delete Users Serial Port Edit User Bridge I/O Module Management Setup Setup TR Port Setup Bridge Setup Figure 4-1 VT100 Console Menu Map with I/O Module Detail
The LCD Console 1 Press [Enter] to view the next level. The LCD Console The SuperStack II Switch 2000 TR has an LCD console located on the front panel. Use this console for reading and setting the Switch and module parameters. Refer to the “SuperStack II Switch 2000 TR User Guide” for a menu map and for specific information and uses of the console. The console provides a quick method for viewing the type of module in the Switch as well as the hardware and software versions of the module. See Figure 4-2.
4-6 CHAPTER 4: ACCESSING MANAGEMENT FEATURES If your terminal is already set up with these values, the Main Banner appears as soon as power-up is complete. Logging On 1 Connect your terminal to the Console port on the rear panel of the Switch 2000 TR using a cross-over cable for a serial line connection. Refer to the Switch 2000 TR User Guide for more information.
Logging Off When you have logged on, the Main Menu screen displays, as shown in Figure 4-4. 5 Select task or logoff. 4-7 Logging Off If you accessed the facility using a Telnet session or modem, the connection closes automatically. If not: 1 Select the LOGOFF option from the bottom of the Main Menu. 2 Press [Return]. Automatic Logout Figure 4-4 Main Screen There is a built-in security timeout on the VT100 interface.
4-8 CHAPTER 4: ACCESSING MANAGEMENT FEATURES
5 CONFIGURING THE TR-IN-FE MODULE This chapter describes how to configure the TR-in-FE Module, including: ■ TR-in-FE Module Configuration Map ■ Setting Up a Module ■ Setting Up a VLAN Figure 5-1 shows the TR-in-FE Configuration Menu Map. TR-in-FE Module Configuration Map The following map displays the path of the TR-in-FE Port Configuration screens. Configuration screens are shaded gray.
5-2 CHAPTER 5: CONFIGURING THE TR-IN-FE MODULE Setting Up a Module The Module Configuration Screen displays the settings used by the TR-in-FE Module to communicate with other devices on the network. It is unlikely that you will need to change the value of these settings once they have been set. CAUTION: If you need to change the value of any of the settings, you may experience a temporary loss of communication while the values are reset.
Setting Up a Module The following fields are shown on the screen: Unit ID—Identifies the currently selected Switch unit. Port ID—Displays the current module type. It should read TIF. Admin. State—This field allows you to *Enable* or *Disable* the TR-in-FE port. Internal Priority—This field allows you to distribute the available bandwidth among the ports. *High* priority ports are given priority access to internal resources, taking priority over *Normal* priority ports.
5-4 CHAPTER 5: CONFIGURING THE TR-IN-FE MODULE Ports with a lower value have a higher priority and will be blocked only after ports with a higher value and a lower priority have been blocked. ■ Path Cost—Path cost determines the amount of overhead required to forward packets to the root through this port. The higher the path cost, the less likely Spanning Tree will use a port for forwarding. The lower the cost, the more likely Spanning Tree will use a port for forwarding.
Setting Up a VLAN Setting Up a VLAN This section describes how to extend VLANs into the TR-in-FE network. A TR-in-FE port can be in one or more (up to 16) VLANs. TR VLAN Info Setup Screen To set up a TR-in-FE VLAN, proceed as follows from the main menu: 1 Use the [Space Bar] to scroll to VLAN. 2 Select VLAN INFO. 3 Press [Return]. The VLAN Info Setup screen appears. See Figure 5-4. 5-5 Each time you complete the entry fields for a VLAN you must select APPLY to invoke the changes.
5-6 CHAPTER 5: CONFIGURING THE TR-IN-FE MODULE Figure 5-5 VLAN Setup Screen 4 Scroll the VLAN list using the [Up and Down] keys.
6 MONITORING THE TR-IN-FE MODULE This chapter describes how to monitor the status and performance of your TR-in-FE Module and explains the meaning of the statistics. ■ TR-in-FE Module Statistics Map ■ Statistics Overview ■ Port Statistics (Traffic) TR-in-FE Module Statistics Map Figure 6-1 shows the screen map. Monitoring screens are shaded gray.
6-2 CHAPTER 6: MONITORING THE TR-IN-FE MODULE Statistics Overview The TR Port Statistics screen provides a top level summary of TR-in-FE Port statistics. You can use the summary to estimate the amount of traffic on your network backbone, and to check the health of the incoming connection. To view the summary, proceed as follows from the I/O Module menu: Unit ID—Identifies the currently selected unit. Port ID—Identifies the currently selected port. It should read TIF.
Port Statistics (Traffic) ■ Broken—No cable attached. Current Utilization—The percentage of bandwidth usage for the port you are currently viewing. This value indicates the general traffic level on the individual port. Ideally, this figure should be below 60%, which indicates that the port is responsible for a reasonable amount of traffic relative to the entire ring. High utilization values suggest that you should adjust the network topology by reducing load on that port through segmentation.
6-4 CHAPTER 6: MONITORING THE TR-IN-FE MODULE Frames Received—The total number of frames that have been received by the port including frames with errors. Frames Transmitted—The total number of frames transmitted by the port, including frames with errors. Multicasts Frames—The number of frames successfully received with a multicast destination address. This number does not include frames directed to a broadcast address or frames received with errors.
A SAFETY INFORMATION on. It is advisable that the fiber TX port and fiber cable ends are never viewed directly when powered on. You must read the following safety information before carrying out any component installation or removal, or any maintenance procedures. This information should be read in conjunction with the safety information supplied with the Switch. WARNING: Do not remove the downlink module or transceiver module blanking plate with the power still connected.
A-2 APPENDIX A: SAFETY INFORMATION Fibre TX et les cables fibre ne soient jamais regardés quand l’unité est allumé. ADVERTISSEMENT:Ne pas enlever le Module Downlink ou la plaque d'occultation de module d'émetteur-récepteur avec le courant encore branché. Wichtige Sicherheitsinformationen WARNUNG: Warnungen enthalten Anweisungen, die zur eigenen Sicherheit unbedingt zu beachten sind. Bitte befolgen Sie alle Anweisungen sorgfältig und genau.
B SCREEN ACCESS RIGHTS This appendix lists the security access level for accessing the TR-in-FE Module local management screens, and lists the type of action performed for each security level. This appendix only covers screens specifically associated with TR-in-FE functionality. See the user guide which accompanies your SuperStack II Switch for additional screen access rights.
B-2 APPENDIX B: SCREEN ACCESS RIGHTS
C TR-IN-FE MODULE TECHNICAL SPECIFICATIONS Environmental Specifications TR-in-FE Cable Specification The TR-in-FE cable you connect to the TR-in-FE Module must conform to the Multi-Mode Fiber (MMF-PMD) standard defined by ANSI x.3-166-1992. Environmental Requirements Operating Temperature 0 to 50˚ C (32 to 122˚F) Operating Humidity 10 to 95% relative humidity, non-condensing Standards EN60068 (IEC68) 3Com supports multi-mode fiber (MMF-PMD) 62.5/125 mm for full duplex mode.
C-2 APPENDIX C: TR-IN-FE MODULE TECHNICAL SPECIFICATIONS Specification Description Output power (from transceiver) -20 dB minimum -14 db maximum Receiver power -31 dB minimum sensitivity -14 dB maximum sensitivity If you are using equipment at the end of the link from a vendor other than 3Com, you must perform a separate loss budget analysis. Contact the vendor(s) for values to use in your analysis.
TR-in-FE Cable Specification The same cable would have a 500 MHz of bandwidth at 1 km (0.625 miles). A fiber cable with a bandwidth specification of 200 MHz.km would have only 100 MHz of bandwidth at 2 km (1.25 miles), which would not support TR-in-FE. In this case, another type of fiber which has a bandwidth of 155 MHz would be required.
C-4 APPENDIX C: TR-IN-FE MODULE TECHNICAL SPECIFICATIONS
D TECHNICAL SUPPORT Online Technical Services 3Com offers worldwide product support seven days a week, 24 hours a day, through the following online systems: Country Data Rate Telephone Number Germany up to 28800 bps (49) (89) 627 32 188 Hong Kong up to 14400 bps (852) 2537 5608 Italy (fee required) up to 14400 bps (39) (2) 273 00680 up to 14400 bps (81) (3) 3345 7266 ■ 3Com Bulletin Board Service (3ComBBS) Japan ■ World Wide Web site Mexico up to 28800 bps (52) (5) 520 7835 ■ 3ComF
D-2 APPENDIX D: TECHNICAL SUPPORT This service features news and information about 3Com products, customer service and support, 3Com’s latest news releases, selected articles from 3TECH™ (3Com’s award-winning technical journal) and more.
Support from 3Com If you are unable to contact your network supplier, see the following section on how to contact 3Com. Country Telephone Number * Support from 3Com D-3 Netherlands 06 0227788 Norway* 800 11376 Singapore (65) 538 9368 If you are unable to receive support from your network supplier, technical support contracts are available from 3Com. South Africa (27) (11) 807 4397 Spain* 900 983125 Sweden* 020 795482 In the U.S. and Canada, call (800) 876-3266 for customer service.
D-4 APPENDIX D: TECHNICAL SUPPORT
1 Numbers F 3Com Bulletin Board Service (3ComBBS) D-1 3Com sales offices D-3 3ComFacts D-2 3ComForum D-2 Fax service.
2 Terminology 1 Traffic Statistics, description of 6-3 TR-in-FE Concepts 2-1 Statistics 6-1 TR-in-FE Module Installing 3-1 Power supply 3-4 TR-in-FE Port Configuration 5-2 Troubleshooting Using LEDs 3-3 U User guide Finding information 2 Users Default users 4-6 Screen access rights B-1 V VT100 Console Button 4-2 Choice Field 4-1 Correcting Text Entries 4-2 Entry Field 4-1 Keyboard Shortcuts 4-2 List Boxes 4-2 W Warnings in text 2
3Com Corporation LIMITED WARRANTY For purposes of this warranty, the SuperStack II Switch 2000 TR Token Ring-in-Fast Ethernet Module is considered a(n) Internetworking product. HARDWARE software products will be corrected. For any third-party products listed in the 3Com software product documentation or specifications as being compatible, 3Com will make reasonable efforts to provide compatibility, except where the noncompatibility is caused by a “bug” or defect in the third party’s product.
PURCHASE PRICE PAID, AT 3COM’S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE. Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers, so the above limitations and exclusions may be limited in their application to you.