Home

3Com 2000 TR Switch User Manual

Contents

1. LED Name Color State Indicates LED Name Color State Indicates reen witch an in odule are oper ull Duplex reen ull duplex link is on port con MGMT G ON Switch and TR in FE Modul Full Dupl G ON Full duplex link i On the front of ating normally On Mod figured for full duplex opera the Switch ule tion Green fast Software download taking place flashing green OFF Half duplex link is on Green slow The Switch and Than FE Module are Port Status Green ON A link is present on the Ether flashing initializing for example undergoing a Power On Self Test T TR in FE Mod net port ule Yellow The Switch failed its Power On Self Green OFF mean present on the Test POST TX Yellow ON The TR in FE port is transmit Yellow flash TR in FE Module failed its Power On On TR in FE Mod ting ing Self Test POST ule OFF Ne Saw IS the Switch OFF The TR in FE port is not trans P mitting frames Green ON ur port enabled and a link is RX Yellow ON The TR in FE port is receiving On front of the P i a TR in FE Mod frames 1 ule Switch oe flash au Besen but TR in FE port dis OFF The TR in FE port is not receiv 9 i ing incoming frames Yellow ON se i MDIX copper only Green ON RJ 45 configured as a cross Switch has not recognized the over TR in FE Module l f Yellow flash Green OFF RJ 45 configured as a static ing OFF The TR in FE Module has failed the Power On Self Test POST A lin
2. TR Port Setup Create User yc TR Port Stats TR Port Setup Traffic Statistics Bridge Setup Figure 4 1 VT100 Console Menu Map with I O Module Detail The LCD Console The SuperStack II Switch 2000 TR has an LCD console located on the front panel Use this console for read ing and setting the Switch and module parameters Refer to the SuperStack Il 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 The menus of the LCD module are circular Press Enter until the menu you wish to view appears For more information refer to Chapter 5 of the Switch 2000 TR User Guide that accompanies your switch To view the module status proceed as follows from the top LCD menu which displays the Switch 2000 TR banner Switch 2000 TR Enter 4 gt VO Module bh Module State EE HW Version w Figure 4 2 O Module LCD Menus The LCD Console 4 5 Press Enter to view the next level Press Down Arrow until Switch 2000 TR gt I O Module appears Press Enter VO Module gt Module Type appears Press Enter STATUS Module Type appears Press Down Arrow to scroll down through the I O Module menus Press Enter at any one of the following fields to view the information described bel
3. Environmental Specifications Environmental Requirements Operating Temperature Operating Humidity Standards Safety Agency Certifications Electromagnetic Emissions Agency Certification 0 to 50 C 32 to 122 F 10 to 95 relative humidity non con densing EN60068 IEC68 UL 1950 EN60950 CSA 22 2 No 950 ECMA 97 EN55022 Class B FCC Part 15 Class A C108 8 M1983 Class A EN 50082 1 IEC801 Parts 2 5 EN60555 Part 2 TR IN FE MODULE TECHNICAL 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 3Com supports multi mode fiber MMF PMD 62 5 125 mm for full duplex mode The maximum inter station distance including device to network connectors should not exceed 2 kilometers 1 25 miles For half duplex mode the cable length should not exceed 300 meters See the following table for cable specifications Specification Description Core Cladding Numerical aperture Maximum attenuation Modal bandwidth Maximum distance between nodes 62 5 um diameter 125 um diameter nominal 122 um minimum 128 um maximum 0 275 11 dB including 1 db allowed for reflection and dispersion penalties 500 MHz km 2 km 1 25 miles Specification APPENDIX C TR IN FE MODULE TECHNICAL SPECIFICATIONS Description Output power from transcei
4. SUPERSTACK Il SWITCH 2000 TR 3 TOKEN RING IN FAST ETHERNET MODULE For SuperStack Il Switch 2000 TR http www 3com com Part No 99045 Published October 1997 3Com Corporation m 5400 Bayfront Plaza m Santa Clara California m 95052 8154 3Com Corporation 1997 All rights reserved No part of this documentation may be reproduced in any form or by any means or used to make any derivative work such as translation transformation or adaptation without permission from 3Com Corporation 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change 3Com Corporation provides this documentation without warranty of any kind either implied or expressed including but not limited to the implied warranties of merchantability and fitness for a particular purpose 3Com may make improvements or changes in the product s and or the program s described in this documentation at any time UNITED STATES GOVERNMENT LEGENDS If you are a United States government agency then this documentation and the software described herein are provided to you subject to the following restricted rights For units of the Department of Defense Restricted Rights Legend Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii for restrict
5. Unit ID 6 Port ID TR 1 Frames Received 0 Octets Received 0 Frames Transmitted 0 Octets Transmitted 0 Multicast Frames 0 Line Errors 0 Broadcast Frames 0 Frames Forwarded 0 Cut thrus Received 0 Errors 0 Lost Frames 0 Abort Frames 0 Frame Size Analysis 18 to 63 Octets 0 8 64 to 127 Octets 0 8 128 to 255 Octets 0 8 256 to 511 Octets 0 8 512 to 1023 Octets 0 8 1024 to 2047 Octets 0 8 2048 to 4095 Octets 0 8 BT 4095 Octets 0 8 CLEAR SCREEN COUNTERS Figure 6 3 Sample TR Port Statistics Traffic Screen The Port Statistics screen displays the following fields Unit ID The identifying number of the unit you are viewing Port ID The identifying name of the port you are viewing Should read TR in FE 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 success fully received with a multicast destination address This number does not include frames directed to a broadcast address or frames received with errors Broadcast Frames The number of frames received that have a broadcast destination address This number does not include frames with errors Octets Received The number of octets received by the port including the MAC header and CR
6. limited in their application to you This warranty gives you specific legal rights which may vary depending on local law GOVERNING LAW This Limited Warranty shall be governed by the laws of the state of California 3Com Corporation 5400 Bayfront Plaza Santa Clara CA 95052 8145 408 764 5000 8 20 96
7. 950 SELV Safety Extra Low Voltage betrieben AngeschloBen werden k nnen nur Ger te die ebenfalls nach SELV betrieben werden Optische Sicherheitsmassnahmen Unter normalen Umstaenden besteht keine Gefahr durch die sen dende Lumineszenzdiode LED Es wird jedoch empfohlen diese LED wenn sie im Betrieb ist nie mals mittels irgenwelcher Art von Vergroesse rungsgeraeten zu betrachten Es ist ratsam mit dieser Glasfaser Sendeleitung und den Lictwellen leiter Enden keinen direkten Augenkontakt zu haben wenn sie im Betrieb sind B SCREEN ACCESS RIGHTS This appendix lists the security access level for access ing the TR in FE Module local management screens and lists the type of action performed for each secu rity level This appendix only covers screens specifically associ ated with TR in FE functionality See the user guide which accompanies your SuperStack Il Switch for additional screen access rights The general actions that can be performed by users for each of the security access levels is as follows Security Specialist read and write Manager read and write Monitor Secure Monitor read only The following table shows the access rights required for each of the ATM screens Screen Access level required TR in FE Port Setup Security Manager Monitor TR in FE VLAN Setup Security Manager TR in FE Port Statistics Security Manager Monitor B 2 APPENDIX B SCREEN ACCESS RIGHTS ete 2
8. LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER S OR ANY THIRD PERSON S MISUSE NEGLECT IMPROPER INSTALLATION OR TESTING UNAUTHORIZED ATTEMPTS TO REPAIR OR MODIFY OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OR OTHER HAZARD LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY WHETHER BASED IN CONTRACT OR TORT INCLUDING NEGLIGENCE FOR INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF REVENUE OR PROFITS LOSS OF BUSINESS LOSS OF INFORMATION OR DATA OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF ITS PRODUCTS EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIMITS ITS LIABILITY TO REPAIR REPLACEMENT OR REFUND OF THE 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
9. considered a n Internetworking product HARDWARE 3Com warrants its hardware products to be free from defects in workmanship and materials under normal use and service for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller Internetworking products One year Network adapters Lifetime Ethernet stackable hubs and Lifetime Unmanaged Ethernet fixed port repeaters One year if not registered Power supply and fans in the stackable hubs and One year unmanaged repeaters Other hardware products One year Spare parts and spares kits 90 days If a product does not operate as warranted above during the applicable warranty period 3Com shall at its option and expense repair the defective product or part deliver to Customer an equivalent product or part to replace the defective item or refund to Customer the purchase price paid for the defective product All products that are replaced will become the property of 3Com Replacement products may be new or reconditioned Any replaced or repaired product or part has a ninety 90 day warranty or the remainder of the initial warranty period whichever is longer 3Com shall not be responsible for any software firmware information or memory data of Customer contained in stored on or integrated with any products returned to 3Com for repair whether under warranty or not SOFTWARE 3Com warrants that the software programs licensed
10. currently selected unit Port ID Identifies the currently selected port It should read TIF Link State Displays the current state of the unit The states include a Listening The state in which all ports placed while Spanning Tree configures the net work topology Ports remain in this state until the root bridge is selected This period should be long enough for a port to hear from all other ports on the switch a Learning The state in which ports receive data on the topology of the network for the purpose of learning the stations attached to the port If the port receives no information that would force it into the blocking state then it moves on to the forwarding state a Forwarding This state allows the port to per form standard switching and bridging func tions Packets are received and the port either forwards or discards them based on the address of the packet and the switch s address table Blocking In this state the port continues to receive data on the status of the network topol ogy but does not transmit them The port nei ther receives packets nor learns the addresses of stations for forwarding or receiving a Disabled The state in which Spanning Tree has been turned off Port is disabled by man agement a 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
11. le TR in FE Module m L installation et l enl vement de l unit doivent tre faits seulement par une personnel qualifi m Cette unit marche sous les conditions SELV Safety Extra Low Voltage conform ment IEC950 ces conditions sont maintenues seulement si le mat riel auquel elle est branch e est aussi en exploitation sous SELV m La s curit optique Il n y a pas de risques du Trans mit LED vu sous conditions normales Cependant il est recommand de ne pas regarder le mat riel avec l aide d une verre grossiant quand il est allum Il est aussi conseill que la port marqu A 2 APPENDIX A SAFETY INFORMATION Fibre TX et les cables fibre ne soient jamais WARNUNG Die Austastplatten der Downlink Mod regard s quand l unit est allum A ule oder Sendeempf nger Module nicht entfernen solange die Einheit ans Stromnetz angeschlossen ist ADVERTISSEMENT Ne pas enlever le Module Down link ou la plaque d occultation de module d metteur r cepteur avec le courant encore branch Wichtige Sicherheitsinformationen WARNUNG Warnungen enthalten Anweisungen die zur eigenen Sicherheit unbedingt zu beachten sind Bitte befolgen Sie alle Anweisungen sorgf ltig und genau Bitte unbedingt vor dem Einbauen des TR in FE Module Einheit die folgenden Sicherheitsanweisun gen durchlesen m Ein und Ausbau des Ger tes ist nur von Fachper sonal vorzunehmen m Das Ger t wird mit Sicherheits Kleinspannung nach IEC
12. of key strokes Correcting Text Entries Use Delete on a VT100 terminal or Backspace on a PC This key moves the cursor one space to the left Console Menu Map 4 3 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 Figure 4 1 provides a map of available O Module gt are using Telnet or a terminal emulation program you local management screens The O Module STEENS may find that some Control keys do not work the 275 shaded gray and appear when the TR in FE same or that they control other functions Refer to Module installed If these See do not appear the documentation that accompanies your Telnet or your TR in FE Module is not installed correctly terminal emulation software Console Menu Map Default Users The resident management console allows three default user types They cannot be deleted or altered by the network administrator Refer to Table 4 1 for default names and passwords Refer to Appendix B for a listing of screen access rights Table 4 1 Default User Names and Passwords Table 2 Default Name Password Access Level monitor monitor monitor manager manager manager security security security 4 4 CHAPTER 4 ACCESSING MANAGEMENT FEATURES Switch 2000 Switch 2000 Switch 2000 Main Banner Logon Main Menu Switch Pod Management Software Logoff Management ccess Upgrade 9 Levels Local Security
13. the individ ual port Ideally this figure should be below 60 which indicates that the port is responsible for a rea sonable 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 Frames Forwarded A running average of the pro portion of the received frames forwarded This value is expressed as a percentage of all received frames based on a sampling interval of 20 seconds Broadcast Frame Bandwidth A running average of the broadcast frame bandwidth This value is expressed as a percentage of theoretical maximum bandwidth availability based on a sampling interval of 20 seconds Error Frames This field displays a running average of the percentage of error frames with CRC errors and is based on a sampling interval of 20 seconds Traffic Statistics Select this category to view the Port Statistics Traffic screen See the next section Port Statistics Traffic 6 3 Port Statistics Traffic The TR Port Statistics Traffic screen provides a detailed display of statistics for the port you are view ing To view the Port Statistics screen proceed as fol lows from the TR Port Statistics screen Select TRAFFIC STATISTICS button in the lower left hand corner of the screen The TR Port Statistics screen appears See Figure 6 3 SuperStack 11 Switch 2000 TR Port Statistics Traffic
14. users wanting their Token Ring server band width increased beyond 32 Mbps faced limited options They could add either FDDI or ATM down links to their Token Ring switches options that proved costly and complex The Token Ring in Fast Ethernet TR in FE system offers a new simpler option at a much lower cost TR in FE offers improvement in the following areas m Scalability a TR switching a High speed technologies Wire speed performance m Flexibility High speed flexibility choice of D L technology Desktop flexibility TR Ethernet Common high speed infrastructure m Managability Simple to configure and administer m Cost effective TR in FE allows both Token Ring and Ethernet to share the same Fast Ethernet physical wiring infra structure and server base without impacting network performance TR in FE accomplishes this by introduc ing routing or Source Route to Transparent transla tional bridging Fast Ethernet is relatively well understood and easy to configure The TR in FE operates in both copper or fiber optic environments Additionally many tools exist to manage and administer Fast Ethernet due to its wide acceptance in the industry and its similarity to Ethernet TR in FE benefits those MIS managers most interested in m Preserving existing investments in TR infrastructure m Seeking low cost high speed connectivity m Combining Ethernet and Token Ring for common server access Fast Ethernet is less
15. you need to change the value of any of A the settings you may experience a temporary loss of Starlets E communication while the values are reset If you do not need to make any changes select the CANCEL button and not the OK button Selecting the OK Figure 5 2 I O Module Screen CONFIG button resets the device 9 To configure a module log on to the Switch 2000 TR 5 Press Return and proceed as follows 5 The Port Setup screen appears See Figure 5 3 1 Select SWITCH MANAGEMENT from the Main Menu 2 Press Space Bar and select O Module SuperStack 11 Switch 2000 TR Port Setup The I O Module screen appears The I O Module Unit 1D 1 1 allows you to view statistics and set up the RH NEN RPM iori TR in FE module See Figure 5 2 Meu ME ce Packet Size 21518 If the O Module option does not respond your ri ing 2 TR in FE module is not installed correctly Refer to Chapter 3 for information on installation 3 Enter the Unit ID of the unit with the module installed 4 Select SETUP bk BRIDGE CRNCEL Figure 5 3 Port Setup Screen The following fields are shown on the screen Unit ID ldentifies 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 dist
16. 1 Overview Chapter 2 TR in FE Concepts Chapter 3 Installing And Setting Up The Mod ule Appendix C TR in FE Module Technical Specifi cations Chapter 3 Installing And Setting Up The Mod ule Chapter 5 Configuring The TR in FE Module Appendix A Safety Information Chapter 4 Accessing Management Features Appendix B Screen Access Rights Chapter 6 Monitoring The TR in FE Module Appendix D Technical Support Conventions Table 1 and Table 2 list icon and text conventions that are used throughout this guide Table 1 Notice Icons Icon Type Description Information Important features or instructions Note Caution Alerts you to personal safety risks system A damage or loss of data Warning Risk of severe personal injury Table 2 Text Conventions Convention Description Screen This typeface is used to represent information as it display appears on the screen The words The word enter means type something and then Enter and press the Return or Enter key Do not press the Return or Enter key when an instruction simply says type Key names Key names appear in text in one of two ways m Referred to by their labels such as the Return key or the Escape key m Enclosed within brackets such as Return or Esc If you must press two or more keys simultaneously the key names are linked with a plus sign For example
17. 3Com Corporation 3ComFacts is a service mark of 3Com Corporation CompuServe is a registered trademark of CompuServe Inc Other brand and product names may be registered trademarks or trademarks of their respective holders Guide written by Ken Wisman ABOUT THIS GUIDE Introduction 1 Terminology 1 Finding Information in this Guide 2 Conventions 2 OVERVIEW About the SuperStack Il 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 TR IN FE CONCEPTS What is Token Ring in Fast Ethernet TR in FE 2 1 TR in FE Compared to Traditional Methods 2 2 3Com Token Ring in Fast Ethernet System 2 2 Token Ring in Fast Ethernet Module 2 2 How TR in FE Works 2 3 Tunneling 2 5 Requirements 2 5 Token Ring Frames 2 5 Virtual LANs VLANS 2 7 What isa VLAN 2 7 Advantages of VLAN 2 7 Port Based Distribution 2 7 INSTALLING AND SETTING UP THE MODULE Following Safety Information 3 1 Pre installation Procedure 3 1 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 ACCESSING MANAGEMENT FEATURES VT100 Console 4 1 Choice Field 4 1 Entry Field 4 1 Button 4 2 List Boxes 4 2 Key Board Shortcuts 4 2 Correcting Text Entries 4 2 Default Users 4 3 Console Menu Map 4 3 Th
18. C Octet counters are accurate to the nearest 256 byte bound ary Octets Transmitted The number of octets trans mitted by the port including the MAC header and CRC Octet counters are accurate to the nearest 256 byte boundary Jam Counts Frames Forwarded The total number of frames received by this port and then forwarded to their des tination address Cut thrus Received The total number of cut thru packets received on the port Errors Total of both line errors CRCs and lost frames Frame Size Analysis A series of counters that rep resent the composition of the traffic on the Switch 2000 TR The counters display the percentage of packets categorized by received length as represented by the following octet parameters m 18 to 63 octets m 64to 127 octets m 128 to 255 octets m 256 to 511 octets m 512 to 1023 octets 1024 to 2047 octets 2048 to 4095 octets m Packets greater than 4095 octets Clearing Screen Counters To make it easier to note the changes in statistic val ues you can reset the value of statistics shown on the screen to zero Resetting the values shown on the screen does not reset the statistic values stored on the device Select the CLEAR SCREEN COUNTERS button to reset the counters on the screen to zero A ete e e You must read the following safety information before carrying out any component installation or removal or any maintenance procedures This info
19. MA number will be returned to the sender unopened at the sender s expense To obtain an RMA number call or fax Outside Europe Country Telephone Number Fax Number U S and Canada 800 876 3266 option2 408 764 7120 Europe 31 30 60 29900 option 5 44 1442 275822 1 408 492 1790 1 408 764 7290 U S and Canada D 4 APPENDIX D TECHNICAL SUPPORT Numbers 3Com Bulletin Board Service 3ComBBS D 1 3Com sales offices D 3 3ComFacts D 2 3ComForum D 2 F Fax service See 3ComFacts Forwarding description of 6 2 Frames Forwarded description of 6 3 A Automatic logout 4 7 Installing the TR in FE Module 3 1 B Bandwidth Calculation C 1 Blocking description of 6 2 BRIDGE SETUP Setting Bridge Parameters 5 3 Broadcast Frame Bandwidth description of 6 3 Bulletin board service D 1 L Learning description of 6 2 LEDs Summary 3 3 Listening definition of 6 2 Logging off 4 7 Cables Technical Specification C 1 Cautions in text 2 Clearing screen counters 6 4 CompuServe D 2 Connections Troubleshooting 3 5 Conventions in text 2 Current Utilization description of 6 3 D Default Users management console 4 3 Disabled description of 6 2 E Environmental Specifications C 1 Error Frames description of 6 3 M Manual Finding information 2 N Network supplier support D 2 Notice conventions 1 On line technical services D 1 Passwords De
20. Press Ctrl Alt Del Words in Bold text denotes key features bold OVERVIEW This chapter describes the major features and benefits of the SuperStack II Switch 2000 TR TR in FE Module About the SuperStack II Switch 2000 TR including TR in FE Module f l The SuperStack Il Switch 2000 TR TR in FE module m About the SuperStack II Switch 2000 TR TR in FE combines Token Ring and Fast Ethernet FE for the Module purpose of utilizing FE as a backbone and method of m TR in FE Benefits high speed server attachment for TR networks TR in FE complements ATM and FDDI methods of high speed integration by providing an option to help TR users evolve their network s core infrastructure while preserving their existing equipment and appli cations Summary of TR in FE Module Features TR in FE uses Fast Ethernet to transport natively for matted Token Ring frames Both source route and transparent TR frame addressing information is main tained through the FE infrastructure This allows stan dard TR workstations and servers to use the fast transport without modification or special FE servers to communicate to the native TR community 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
21. alization use a default user name and password to match your access requirements We recommend that you use the default user security so that you can access all functions The defaults are shown in Table 4 3 m f you have been assigned a user name access level and password type in these details Table 4 3 Default Users User Name Default Access Level Password monitor monitor monitor this user can view but not change all manageable parameters manager manager manager this user can access and change the operational parameters but not special secu rity features security security security this user can access and change all manageable parameters Logging Off 4 7 When you have logged on the Main Menu screen displays as shown in Figure 4 4 Logging Off If you accessed the facility using a Telnet session or 5 Select task or logoff modem the connection closes automatically If not 1 Select the LOGOFF option from the bottom of the SCom SuperStack Il Switch 2000 TR Hain Menu Main Menu SWITCH MANAGEMENT 2 Press Return QUICK SETUP USER ACCESS LEVELS STATUS Rii dot 5 MANAGEMENT SETUP SOFTWARE UPGRADE utomatic Logou INITIALIZE RESET uL There is a built in security timeout on the VT100 inter face If you do not press any keys for three minutes a message warns you that the inactivity timer is about to expire If you do not press a key within 10 seconds the timer will expir
22. an end station on an 802 3 subnetwork The VLAN Identifier VID field uniquely identifies the VLAN to which a frame belongs See the next section Virtual LANs VLANS for a complete explanation of VLANs and the VLAN Identifier also known as VLAN ID or VID The Route Control field is added to the frame to carry TR specific information such as Transparent or SR information The payload is TR spe cific in content Once the tunneling process is complete the com bined Token Ring in Fast Ethernet frame resembles the frame shown in Figure 2 4 simplified The pro cess is reversed to de encapsulate the frame Header Information for Ethernet Token Ring E TR Frames sS Payload N osa TPID TC LEN RONTL RDs User Data IpaolFcs Key cDA Canonical Destination Address Field cSA Canonical Source Address Field TPID Tag Protocol Identifier Field TCI Tag Control Information Field which includes User Priority TR encap VLAN ID LEN Length in octets of RCNTL RDs User Data Fields RCNTL Route Control Field RDs Route Descriptor 0 n from the original frame PAD Ethernet frames must be at least 64 bytes in length FCS Frame Check Sequence Figure 2 4 Token Ring in Fast Ethernet Frame Virtual LANs VLANS What is a VLAN A VLAN is defined as a group of location and topol ogy independent devices that communicate as though they were on the same physical LAN This means that they are not res
23. bes the number of routing descriptions allowed in All Route Explorer ARE or Spanning Tree Explorer STE frames This is also referred to as hop count limit since it limits the number of rings a packet can traverse STE Mode This value determines how this port responds when presented with Spanning Tree Explorer STE packets Set the field accordingly by pressing the Space Bar a Disabled Indicates that the port will not accept or propagate STE packets and any pack ets received will be discarded a Forced Indicates that the port will always accept and propagate STE packets a Auto Span tndicates that the port will accept and propagate STE packets when its Spanning Tree state is forwarding 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 SuperStack Il Switch 2000 TR VLAN Info Setup VLAN ID 11 I ULAN Name IULRN 1 1 802 14 VLAN Id 1 1 Hex FFFF disabled APPLY CANCEL L Figure 5 4 TR VLAN Info Setup Screen 4 Select the VLAN that you wish to configure Enter the number associated with the VLAN in the VLAN ID field Setting Up a VLAN 5 5 you mus
24. cles from 3Com s award winning technical journal and more Country Telephone Country Telephone Number Number 3ComForum on CompuServe Australia 800 123853 Netherlands 06 0228049 3ComForum is a CompuServe based service contain Belgum 0800 71279 Norway 800 11062 ing patches software drivers and technical articles Denmark 800 17319 Portugal 0505 442607 about all 3Com products as well as a messaging sec Finland 98 001 4444 Rueda 956 0815 tion for peer support To use 3ComForum you need a Moscow only Compuserve account France 05 90 81 58 Spain 900 964445 To use 3ComForum Germany 0130 8180 63 Sweden 020 792954 Italy 1678 99085 U K 0800 626403 1 Log on to CompuServe 2 Enter go threecom Support from Your Network Supplier If additional assistance is required contact your net work supplier Many suppliers are authorized 3Com service partners qualified to provide a variety of ser 3 Press Return to see the 3ComForum main menu 3ComFacts Automated Fax Service 3Com Corporations interactive fax service vices including network planning installation hard diagrams and troubleshooting instructions on 3Com services products 24 hours a day seven days a week When you contact your network supplier for assis Call 3ComFacts using your touch tone telephone tance have the following information ready International access numbers are Diagnostic error messages m A list of system hardware and soft
25. d Down keys 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 a Statistics Overview Port Statistics Traffic MONITORING THE TR IN FE MODULE TR in FE Module Statistics Map Figure 6 1 shows the screen map Monitoring screens are shaded gray VO Module Figure 6 1 Status Screen Map TR Port Stats Traffic Statistics TR Port Setup CHAPTER 6 MONITORING THE TR IN FE MODULE Statistics Overview The TR Port Statistics screen provides a top level sum mary of TR in FE Port statistics You can use the sum mary 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 Enter the Unit ID number of the unit you wish to view Select the STATISTICS button The TR Port Statistics screen appears See Figure 6 2 SCom SuperStack Il Switch 2000 TR Port Statistics Unit ID 1 Port ID TIF Link State Broken Current Utilization 8 Frames Forwarded 0 Broadcast Frame Bandwidth 0 Error Frames 0 TRAFFIC STATISTICS Figure 6 2 TR Port Statistics Screen The figures shown for each statistic on this screen include TR in FE management traffic and normal Token Ring traffic The Port Statistics screen displays the following fields Unit ID Identifies the
26. d Service 3ComBBS Japan up to 14400 bps 81 3 3345 7266 m World Wide Web site Mexico up to 28800 bps 52 5 520 7835 3ComForum on CompuServe P R of China up to 14400 bps 86 10 684 92351 m 3ComFacts automated fax service Singapore upto 100bps 102 3324 3633 Taiwan up to 14400 bps 886 2 377 5840 3Com Bulletin Board Service U K up to 28800 bps 44 1442 278278 3ComBBS contains patches software and drivers for U S up to 28800 bps 1 408 980 8204 all 3Com products as well as technical articles This service is available via modem or ISDN seven days a Access by ISDN week 24 hours a day ISDN users can dial in to 3ComBBS using a digital Access by Modem modem for fast access up to 56 Kbps To access To reach the service by modem set your modem to 8 AC OBES EL data bits no parity and 1 stop bit Call the telephone 408 654 2703 number nearest you World Wide Web Site country Pata Rat Telephone Number Access the latest networking information on 3Com s Australia up to 14400 bps 61 2 9955 2073 World Wide Web site by entering our URL into your Brazil up to 14400 bps 55 11 547 9666 Internet browser France up to 14400 bps 33 1 69 86 69 54 http www 3Com com D 2 APPENDIX D TECHNICAL SUPPORT This service features news and information about Local access numbers are available within the follow 3Com products customer service and support ing countries 3Com s latest news releases selected arti
27. e LCD Console 4 5 Logging On 4 6 Logging Off 4 7 Automatic Logout 4 7 CONFIGURING THE TR IN FE MODULE TR in FE Module Configuration Map 5 1 Setting Up a Module 5 2 Bridge Parameters 5 3 Spanning Tree 5 3 Source Routing 5 4 Setting Up a VLAN 5 5 TR VLAN Info Setup Screen 5 5 TR VLAN Setup Screen 5 5 MONITORING THE TR IN FE MODULE TR in FE Module Statistics Map 6 1 Statistics Overview 6 2 Port Statistics Traffic 6 3 Clearing Screen Counters 6 4 Returning Products for Repair D 3 SAFETY INFORMATION Important Safety Information A 1 L information de S curit Importante A 1 Wichtige Sicherheitsinformationen 2 SCREEN ACCESS RIGHTS TR IN FE MODULE TECHNICAL SPECIFICATIONS Environmental Specifications C 1 TR in FE Cable Specification C 1 Does the Cable Provide Sufficient Bandwidth C 2 Example C 2 TECHNICAL SUPPORT Online Technical Services D 1 3Com Bulletin Board Service D 1 Access by Modem D 1 Access by ISDN D 1 World Wide Web Site D 1 3ComForum on CompuServe D 2 3ComFacts Automated Fax Service D 2 Support from Your Network Supplier D 2 Support from 3Com D 3 3COM CORPORATION LIMITED WARRANTY ABOUT THIS GUIDE Introduction This guide provides the information needed to install and configure the SuperStack Il Switch 2000 TR Token Ring in Fast Ethernet TR in FE Module For more information about the switch itself see the SuperStack Il Switch 2000 TR User Guide SuperS
28. e and the screen will be locked All displayed data continues to update When you next Figure 4 4 Main Screen press a key the display changes to the Auto Logout screen The Auto Logout screen prompts you to enter your password again If the password is correctly entered the screen that was active when the timer expired is re displayed If you make a mistake entering your password you will be returned to the Logon screen 4 8 CHAPTER 4 ACCESSING MANAGEMENT FEATURES This chapter describes how to configure the TR in FE Module including Module Configuration Map Setting Up a Module Setting Up a VLAN Figure 5 1 shows the TR in FE Configuration Menu Map CONFIGURING THE TR IN FE MODULE 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 VO Module Figure 5 1 Module TR in FE Configuration Map TR Port Stats Traffic Statistics TR Port Setup Bridge Setup 5 2 CHAPTER 5 CONFIGURING THE TR IN FE MODULE Setting Up a Module SuperStack 11 Switch 2000 TR Management The Module Configuration Screen displays the set tings used by the TR in FE Module to communicate with other devices on the network Management Level 41 0 Modules Unit ID 1 It is unlikely that you will need to change the value of I these settings once they have been set CAUTION If
29. e to reassemble the original TR frame Source routing from Token Ring to Ethernet and back to Token Ring should be supported m VLAN identification information Tagging requires the addition of a tag header to each frame This header is inserted immediately following the Destination Address DA Source Address SA Token Ring Frames and if present the Routing Information Field RIF If Figure 2 3 shows a simplified drawing of a Token Ring the source and destination media differ tagging the frame frame may involve translation or encapsulation of the frame remainder Tagging also requires re computa tion of the Frame Check Sequence FCS which are extra characters added to frames for error control purposes CHAPTER 2 TR IN FE CONCEPTS The Tag Header carries a Tag Protocol Identifier TPID that identifies the frame as a Tagged Frame The Header also carries Tag Control Information which consists of the following fields User Priority m TR encap m VLAN Identifier VID The User Priority field allows the tagged frame to carry user priority information across bridged LANs where individual LAN segments may not be able to signal for priority information An 802 3 Ethernet rep resents such a segment The primary purpose of the TR encap flag is to permit tunneling of Tagged Frames between two 802 5 LAN segments across a VLAN tagged region It also allows an end station on an 802 5 subnetwork to communi cate with
30. ed Rights in Technical Data and Computer Software clause at 48 52 227 7013 3Com Corporation 5400 Bayfront Plaza Santa Clara California 95052 8145 For civilian agencies Restricted Rights Legend Use reproduction or disclosure is subject to restrictions set forth in subparagraph a through d of the Commercial Computer Software Restricted Rights Clause at 48 52 227 19 and the limitations set forth in 3Com Corporation s standard commercial agreement for the software Unpublished rights reserved under the copyright laws of the United States If there is any software on removable media described in this documentation it is furnished under a license agreement included with the product as a separate document in the hard copy documentation or on the removable media in a directory file named LICENSE TXT If you are unable to locate a copy please contact 3Com and a copy will be provided to you Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com AccessBuilder Boundary Routing CardFacts LanScanner LinkBuilder NETBuilder NETBuilder Il NetFacts Parallel Tasking ViewBuilder EtherDisk EtherLink EtherLink Plus EtherLink Il SmartAgent SuperStack Il TokenLink TokenLink Plus TokenDisk and Transcend are registered trademarks of 3Com Corporation 3TECH CacheCard FDDILink FMS NetProbe and Star Tek are trademarks of
31. ed proof of purchase to 3Com s Corporate Service Center or to an Authorized 3Com Service Center during the applicable warranty period Standard warranty service for software products may be obtained by telephoning 3Com s Corporate Service Center or an Authorized 3Com Service Center within the warranty period Products returned to 3Com s Corporate Service Center must be pre authorized by 3Com with a Return Material Authorization RMA number marked on the outside of the package and sent prepaid insured and packaged appropriately for safe shipment The repaired or replaced item will be shipped to Customer at 3Com s expense not later than thirty 30 days after receipt of the defective product by 3Com WARRANTIES EXCLUSIVE F A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE CUSTOMER S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION TO THE FULL EXTENT ALLOWED BY LAW THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES TERMS OR CONDITIONS EXPRESS OR IMPLIED EITHER IN FACT OR BY OPERATION OF LAW STATUTORY OR OTHERWISE INCLUDING WARRANTIES TERMS OR CONDITIONS OF ERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND SATISFACTORY QUALITY 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE NSTALLATION MAINTENANCE OR USE OF ITS PRODUCTS 3COM SHALL NOT BE
32. er for a 1 km 0 625 miles distance Your cable must have a Modal bandwidth of 500 MHz which allows the cable to support end to end band width of 250 MHz at the maximum 2 km 1 25 miles distance To check that the bandwidth of your fiber is within an acceptable range Divide the amount of bandwidth available according to the fiber specification by the total length of fiber km If the result is lower than 250 MHz the link may be prone to bit errors You should shorten the length of the fiber or use a different fiber until the result of the calculation reaches 250 MHz Example A cable with modal bandwidth of 500 MHz km will have 250 MHz of bandwidth at 2 km 1 25 miles 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 band width of 155 MHz would be required TR in FE Cable Specification C 4 APPENDIX C TR IN FE MODULE TECHNICAL SPECIFICATIONS D TECHNICAL SUPPORT eee Online Technical Services Country Data Rate Telephone Number 3Com offers worldwide product support seven days a Germany ae week 24 hours a day through the following online Hong Kong upto 14400 bps 852 2537 5608 systems Italy fee required up to 14400 bps 39 2 273 00680 3Com Bulletin Boar
33. ernet specifi cations See Appendix C 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 precau tions You can configure the TR in FE module to operate as MDI default or MDIX Follow the rules and proce dure below See Figure 3 2 m MODI If TR in FE module is connected to another switch with an MDIX port m MDIX IIf TR in FE module is connected to an end station or server The MDIX setting provides a crossover the MDI set ting does not A crossover cable can be used to connect two MDI or two MDIX ports together oe eee Por configured as MDI default Port configured as MDIX Figure 3 2 TR in FE Module Jumper Settings The menu driven user interface built into the device is known as the VT100 or Local Management interface 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 m The VT100 Console Console Menu Map m The LCD Console m Logging On m Logging Off The manual that acc
34. es parties de l unit ou faire le travail d entretien D brancher la pi ce de raccordement d alimentation WARNUNG Bevor Sie Ein oder Ausbau des Ger tes vornehmen butte lessen Sie die Anweisungen in Appendix A genau durch Das Ger t darf nicht ans Stromnetz angeschlossen sein CAUTION Only hold the TR in FE Module by the edges to avoid damage from static Do not touch the top or bottom of the circuit board Pre installation Procedure Before installing the TR in FE Module familiarize your self with the module and the Switch into which it will be installed CHAPTER 3 INSTALLING AND SETTING UP THE MODULE Installation This section explains how to install the TR in FE Module into a SuperStack Il Switch 2000 TR device Installation is similar for all devices compatible with the TR in FE Module CAUTION Always follow Electro Static Discharge ESD procedures when installing an I O Module If the Switch is connected to the network turn off the power and disconnect the switch from the main power supply and the network Place the Switch on a flat clean hard work surface Locate and remove the blanking plate that covers the switch Module slot See Figure 3 1 Retain the blank ing plate and the screws for future use To locate the slot where the TR in FE Module resides refer to the manual that accompanies your device Use the guide rails within the Switch slot to align the TR in FE Module The location o
35. expensive than other options such as FDDI and ATM Using FE the price per port for server attachment is 2096 that of ATM and FDDI TR switching allows the install base of TR equipment and its configuration to remain intact and operational while allowing for an upgrade to higher performance through microsegmentation and interfaces to higher speed technologies TR in FE represents one option for integrating Fast Ethernet into the TR switched environment Summary of TR in FE Module Features The following lists summarize the features of the SuperStack Il Switch 2000 TR TR in FE module Hardware Multimode fiber attachment using duplex connec tors or copper cable attachment using standard RJ 45 Full duplex operation Flow control LEDs to indicate link integrity and link activity Compliance with FCC Class A CISPR and CE 4544 byte frame size for improved performance Easy jumper setting for crossover switch copper version only Software m Software configurable hardware m 16 VLAN hardware support IEEE 802 1q compatible Frame size limiter of 1500 bytes for standard infra structure Summary of TR in FE Module Features 1 4 CHAPTER 1 OVERVIEW TR IN FE CONCEPTS This chapter provides an introduction to Token Ring in Fast Ethernet concepts for users who are unfamiliar with this technology The following sec tions cover m What is Token Ring in Fast Ethernet TR in FE m TR in FE Com
36. f the guide rails and the correct positioning of the plate is shown in Figure 3 1 Slide the TR in FE Module into the slot without touch ing the top or bottom of the circuit board which positions upside down on the plate Ensure that the module is pushed fully into the unit Use the thumb screws attached to the TR in FE Module to fix the module firmly into place Connect the cable to the TR in FE port m For fiber 3Com supports multi mode fiber 50 125 um and an SCduplex connector The gt 10 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 m For copper 3Com supports Category 5 type UTP cable at distances up to 100 m for both half and full duplex For more on cable specifications see Appendix C Module Technical Specifications Connect the cable to the module Connect the Rx connector to the port s Tx socket Connect the Tx connector to the port s Rx socket Do the same at the other end of the connection m For fiber Each end of the fiber cable has a trans mit Tx and receive Rx connector m For copper A crossover cable may be required for operation which requires a jumper setting on the module See Jumper Settings in this chapter Connect the downlink port to a Fast Ethernet repeater server or switch If you plan r
37. fault passwords 4 6 Port Configuration 5 2 Port Statistics Broadcast Frame Bandwidth 6 3 Current Utilization 6 3 Error Frames 6 3 Frames Forwarded 6 3 Link State Blocking 6 2 Disabled 6 2 Forwarding 6 2 Learning 6 2 Listening 6 2 Traffic Statistics 6 3 Port Statistics Traffic 6 3 Broadcasts Received 6 4 Cut thrus Received 6 4 Errors 6 4 Frame Size Analysis 6 4 Frames Forwarded 6 4 Frames Received 6 4 Frames Transmitted 6 4 Multicasts Received 6 4 Octets Received 6 4 Octets Transmitted 6 4 Port ID 6 3 Post installation checks 3 3 Power supply 3 4 R Returning products for repair D 3 5 Safety information 3 1 English A 1 French A 1 German A 2 Screen access rights B 1 Statistics Clearing screen counters 6 4 Screen map 6 1 T Technical Specifications Bandwidth calculation C 2 Cabling C 1 Environment C 1 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 Switch 2000 TR Token Ring in Fast Ethernet Module is
38. for more informa tion It is strongly recommended that you do not alter these settings Bridge Parameters This section describes how to set bridge parameters for the TR in FE Spanning Tree Spanning Tree is an algorithm designed to eliminate loops in networks The algorithm detects and logically prohibits redundant paths by placing some bridge ports in the blocking state so that only one route exits between any two LANs and therefore any two sta tions After Spanning Tree eliminates redundant paths the network reconfigures and stabilizes Any time the network topology changes the algorithm automatically relearns the new configuration and adjusts the bridge ports accordingly This guarantees that all stations are connected m Priority Priority determines the choice of port when the Switch 2000 TR has two ports connected to the same LAN creating a loop 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 m 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 NOTE It is always recommended that in the case of a loop formed with a low speed port the high
39. from it will perform in substantial conformance to the program specifications therefor for a period of ninety 90 days from the date of purchase from 3Com or its Authorized Reseller 3Com warrants the media containing software against failure during the warranty period No updates are provided 3Com s sole obligation with respect to this express warranty shall be at 3Com s discretion to refund the purchase price paid by Customer for any defective software products or to replace any defective media with software which substantially conforms to 3Com s applicable published specifications Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials 3Com makes no warranty or representation that its software products will work in combination with any hardware or applications software products provided by third parties that the operation of the software products will be uninterrupted or error free or that all defects in the 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 STANDARD WARRANTY SERVICE Standard warranty service for hardware products may be obtained by delivering the defective product accompanied by a copy of the dat
40. g standards and requires that FE server connections and Switch 2000 TR Downlink Modules are 3Com products Once approved TR in FE will be able to be integrated with other vendors FE switching infrastructure may be from any vendor 3Com Token Ring in Fast Ethernet System The 3Com Token Ring in Fast Ethernet includes m SuperStack Il Switch 2000 TR m SuperStack Il Switch 2000 TR Token Ring in Fast Ethernet Module m Fast Ethernet Switch SuperStack Il Switch 3000 m 3Com Fast Ethernet network interface cards NIC Token Ring in Fast Ethernet Module This slide in module provides a 200 Mbps Full duplex Fast Ethernet interface which enables the Switch 2000 TR to become part of a Fast Ethernet switched infrastructure This module allows wire speed trans mission of Token Ring in Fast Ethernet frames Fast Ethernet can be used to connect Token Ring clients to Fast Ethernet servers or as an aggregation point for multiple Token Ring switched connections How TR in FE Works Figure 2 1 shows a diagram of a basic TR in FE sys tem 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 aggrega tion for this system with multiple FDX Fast Ethernet pipes feeding it Traffic that enters a port on the Token Ring switch and that is not destined for another port on the same switch is directed at the TR i
41. itch uses a port based approach to VLAN functionality This approach allows bridges to classify all received tagged and untagged frames as belong ing to a particular VLAN NOTE In port based VLAN operation the VLAN clas sification of an untagged frame is implicitly deter mined and bases on the port of arrival of the frame This facility requires association of a VLAN ID with each of the bridge s ports Only received frames lack ing an explicit VLAN ID are subject to this impilcit clas sification Using the port based approach a specific VLAN ID is associated with each bridge port This VLAN ID known as a Port VLAN Idendtifier PVID provides the VLAN classification for frames received through that port This value may be manager configured 2 8 CHAPTER 2 TR IN FE CONCEPTS This chapter includes important safety and configura tion information including m Following Safety Information Pre installation Procedure m Installation m Post Installation Checks INSTALLING AND SETTING UP THE MODULE Following Safety Information WARNING Before installing or removing nents 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 AVERTISSEMENT II faut lire les notices de s curit dans l appendice A de ce guide avant d installer ou d enlever l
42. k is not present on the TR in FE port The following table describes the LED functions on the TR in FE Module Checking the Power Supply connector Check the MGMT LED on the Switch If the MGMT LED is not lit there is a power supply problem Try the following troubleshooting procedures restarting the Switch after each step 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 Check and if necessary change the fuse on the Switch or plug See the user guide that accompa nies your Switch device for details about fuses Replace the power cable with a cable known to be working e Contact 3Com Technical Support Checking that the TR in FE Module is Installed Correctly Power up the Switch and check that the Downlink Status LED on the front of the Switch is lit Green If the MGMT LED is not lit Green remove and then re install the TR in FE module You can confirm that the TR in FE Module is installed correctly by accessing the local management screens or the LCD panel If the TR in FE Module is installed correctly the TR in FE Configuration option appears in the Main Menu If the TR in FE Configuration option does not appear It could be that the TR in FE Module is still initializing If the TR in FE Module is still initializing the MGMT LED fla
43. n FE Module Subse quently the module puts a Fast Ethernet wrapper see Tunneling section below on the native Token Ring frame and forwards the modified packet as a Fast Ethernet frame to the Switch 3000 The Switch 3000 handles the frame as it would any other FE frame and forwards it to the appropriate port If the destination address is another TR end sta tion located on another switch the destination TR in FE Module strips the frame of the Fast Ethernet information and sends the native TR frame to the appropriate destination port If the destination is a Fast Ethernet attached server the Fast Ethernet NIC with a TR in FE driver interprets the frame before pro viding it to upper level applications The fact that the application communicates using TR in FE is transpar ent to the user How TR in FE Works 2 3 erstat EE E pol yon 2000 TR 5 Stack pet pe amt E pu Fiber cast Ene Copper Figure 2 1 A Simple Token Ring in Fast Ethernet Configuration Figure 2 2 illustrates another example of Token Ring in Fast Ethernet but one on a scale more exem plary of what a real user configuration looks like as part of an integrated system 2 4 CHAPTER 2 TR IN FE CONCEPTS ex erstat ae ue n Figure 2 2 Large scale example of a TR in FE configuration Tunneling 2 5 Tunneling y M Token Ring Header Information This secti
44. ompanies your SuperStack Il Switch 2000 TR describes accessing and navigating local screens ACCESSING MANAGEMENT FEATURES The VT100 Console This section describes the screen conventions used in the Switch 2000 TR VT100 console interface The VT100 interface allows you to set and or view these switch parameters m P and associated addresses and management Port personality speed and state Bridge type bridge number and Spanning Tree state m Switch 2000 TR status and hardware and software version numbers Choice Field Example display text Text enclosed with asterisks is a list from which you can select one option Press Space to cycle through the options When your choice is highlighted press Down Arrow or Return to move to the next field Refer to Figure 4 1 VT100 Console Menu Map with Module Detail Entry Field Example display text CHAPTER 4 ACCESSING MANAGEMENT FEATURES Text enclosed in square brackets on the screen indi cates 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 Button Example display OK Text for button is always shown in uppercase lette
45. on describes tunneling the method by P which Token Ring frames are encapsulated embed i Payload ded within Ethernet frames nSA RIF optional User Data FCS Frames are sets of bits that form an elementary block i 1 Key of data to be sent Over a communications channel A TUM cas TERN EEE EEE COH frame contains its own control information including FC Frame Control Field Address Field the transmission address and data for error detection PO Ee ole CARO Dastination eee Address Field FCS Frame Check Sequence This header information makes certain that the frames arrive with their payload user data intact and at the right destination Simply put what tunneling does is to take a Token Ring frame and embed it into an Ethernet frame to be sent over a Fast Ethernet net work Figure 2 3 Token Ring Frame The Token Ring frame must be specially tagged when preparing it for embedding inside the Ethernet frame Tagging allows Ethernet frame to carry Requirements The tunneling scheme must be compatible with Fast a User priority information over media types other Ethernet networks so that a mix of Ethernet 802 3 wise unable to signal priority information and the Ethernet Token Ring E TR frames may reside Token Ring data in native format 802 5 over on the same segment without interference It is also non 802 5 media important that any end station server bridge router be abl
46. ow Press Down Arrow to move through the circular menus Module Type module type m Module State current state of module UP DOWN m HW Version current version of hardware CHAPTER 4 ACCESSING MANAGEMENT FEATURES 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 The Console port automatically detects the line speed baud rate and uses the following default settings auto baud m 8 character size data bits m 1 stop bit m no parity Character size stop bit flow control and parity values cannot be changed Press Return two or more times until the Switch 2000 Main Banner appears shown in Figure 4 3 SuperStack Il Switch 2000 TR 5555 M H TTTTT CCCC H H 22222 00000 00000 00000 5 WoW H l T H H2 20 00 00 0 sss 1 T c HHHHHH 22 0 00 00 0 WoW H l T H H 2 0 00 00 0 1 T 5 5555 WH WH CCCC H H 22222 00000 00000 00000 Press Enter to Continue Figure 4 3 Main Banner If your terminal is already set up with these values the Main Banner appears as soon as power up is complete Press Return to display the Logon screen at the Main Banner Type in your user name and password Note that they are both case sensitive m f you are logging on for the first time after instal lation or initi
47. pared to Traditional Methods m 3Com Token Ring in Fast Ethernet System m How TR in FE Works m Tunneling m Virtual LANs VLANS What is Token Ring in Fast Ethernet TR in FE Token Ring in Fast Ethernet is a 3Com developed technology that encapsulates Token Ring frames in Fast Ethernet frames Bridging the gap between Token Ring and Ethernet this technology offers a more cost effective integration than traditional bridg ing and routing and allows Token Ring users to expand their bandwidth while preserving their TR infrastructure Using Token Ring in Fast Ethernet technology Fast Ethernet can be used as a cost effective and scalable aggregation point for multiple Token Ring switch con nections In addition because both Token Ring and Ethernet technologies can coexist in the same Fast Ethernet infrastructure both can share to less costly Fast Ethernet connections Through a process known as tunneling see the Tunneling section below TR in FE uses Fast Ether net to transport natively formatted Token Ring frames This means that both source route and trans parent TR frames addressing information is main tained through Fast Ethernet FE so that it may be interpreted and utilized by either a destination Token Ring TR switch or FE server 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
48. ribute the available bandwidth among the ports High pri ority ports are given priority access to internal resources taking priority over Normal priority ports Full Duplex The TR in FE Module works with either a Full Duplex or Half Duplex mode of operation The Full Duplex field allows you to Enable or Disable Full Duplex mode Disabling Full Duplex automatically puts the TR in FE Module in Half Duplex mode Max Packet Size This field allows you two choices for setting the maximum packet size a 1518 Use this value in traditional Fast Ethernet environments a 4544 Use this value for larger packets when configured with a SuperStack II Switch 3000 Jamming Mode This field allows you to restrict the amount of packet loss allowable when configured with conventional switches Jamming provides a vari able parameter for determining the number of colli sions This feature is most helpful in networks using lots of repeaters Choose from J6 through J13 where Setting Up a Module 5 3 J6 indicates the least amount of effort by the port to back off collisions A value of J13 indicates more effort on the port This feature is reserved for quali fied and knowledgeable network managers VLAN Enable Mask This field allows you to restrict or allow for membership in specific VLAN groups Each bit in the two byte field represents a VLAN denomination from 1 to 16 in hexadecimal Refer to Setting Up a VLAN on page 5 5
49. rmation should be read in conjunction with the safety information supplied with the Switch SAFETY INFORMATION Important Safety Information WARNING Warnings contain directions that you must follow for your personal safety Follow all instructions carefully Please read the following safety information thor oughly in conjunction with the safety information supplied with the Switch before installing the TR in FE Module m Installation and removal of the module must be carried out by qualified personnel only This module operates under SELV Safety Extra Low Voltage conditions according to IEC 950 the con ditions of which are maintained only if the equip ment to which it is installed is also operational under SELV Optical Safety Under normal viewing conditions there is no hazard from the Transmit LED It is rec ommended however that the LED is not viewed through any magnifying device while it is powered on It is advisable that the fiber TX port and fiber cable ends are never viewed directly when pow ered on WARNING Do not remove the downlink module or transceiver module blanking plate with the power still connected L information de S curit Importante ADVERTISSEMENT Les avertissements contiennent les directions que vous devez suivre pour votre s cu rit personnelle Suivez toutes les directives avec soin Veuillez lire fond l information de la s curit suiva nte avant d installer
50. routing frame forwarding decisions are made in soft ware 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 This is necessary with non routable protocols like SNA and Netbios This type of bridging deals with all the differences between Token Ring and Ethernet frame formats such as Address fields m Variable length source route fields Functional address to multicast address mapping NetBuilder provides both routing and SRTG function ality The decisions are again made in software and the result is conversion of the source frame to a stan dard destination frame format The benefit of the tra ditional means listed above is that all frames are converted from media to media using standard frame formats which allows for simple mixing and match ing of products from multiple vendors The downside is that these bridges and routers are typically slow expensive and more difficult to manage than switch products TR in FE technology works not by providing frame conversion but by using the Fast Ethernet as a trans port for the Token Ring frames This means that every frame does not need to be parsed deeply nor does source route to transparent frame mapping need to happen Presently TR in FE is based on developin
51. rs Buttons carry out actions For example OK or CAN CEL To select a button move the cursor to the button and press Return List Boxes Example display monitor manager or security A list box allows you to select one or more items from a list These keys allow you to select from a list m Return moves the cursor to the next field Car ries out a button action m Space Bar moves through a text list for a field Use it to highlight the item or value you want m Down Arrow moves down a list item by item and starts over again at the top m Ctrl U moves the cursor one screen up the list box m Ctrl D moves the cursor one page down the list box Key Board Shortcuts Here are some shortcuts you can use to navigate within the console screens m Tab Moves from one field on a form to the next on any screen without making a change m Return Moves you to the next form field after you have made an entry m Left Arrow Moves you to the previous field the screen or the previous character in an editable field m Right Arrow Moves you to the next field on the screen or the next character in an editable field m Ctrl RJ Refreshes the screen m Ctrl B Moves the cursor to the next button m Ctrl P Returns to the previous screen m Ctrl N Moves to the next screen after imple menting current screen settings m Ctrl K Displays list
52. shes GREEN Post Installation Checks 3 5 Checking the Physical Connections This section assumes that the TR in FE Module is cor rectly installed Check that the Link Status LED on the TR in FE Module is lit GREEN If the LED is not lit there is a problem with the physical connection Follow the troubleshooting information below a Ensure that both devices are powered up and that the ports at both ends of the link are enabled b Ensure that the cable is securely connected to the port at both ends of the link If using fiber check each end of the cable to ensure that each of the fiber connectors is correctly connected If your cable connectors can be reversed you may need to reverse the TX and RX cable connectors at one end of the link If using copper the TX and RX pairs may need to be swapped This requires changing the jumper setting on the module See Jumper Settings e Ensure that the fiber connection is not broken Some cable connectors have been designed so that they cannot be fitted incorrectly Never use excessive force to connect cables f If you are running full duplex make certain that the Fast Ethernet switch supports this mode A repeater will not support full duplex whereas a switch such as the SuperStack 3000 will g Remove any objects obstructing the cable and straighten out any kinks in the cable CHAPTER 3 INSTALLING AND SETTING UP THE MODULE h Check that your cable meets Fast Eth
53. speed ports do not block The switch automatically provides this function with default settings port speed is part of the spanning tree calculations Be aware of this if the spanning tree values are modified m Fast Fwd Frames are forwarded as soon as the destination address is received and verified Source Routing Source Routing is a method of allowing a ring station node on a Token Ring network to communicate with another ring station on a different ring intercon nected by bridges The source ring station which is the node initiating the communication is responsible for dynamically determining and then maintaining information about the route to the destination ring station A route is simply the path a packet takes through a source route bridged network from the source ring station to the destination ring station In the case of TR in FE a virtual LAN ID must be assigned to the FE cloud This allows Source Routing to proceed as though the FE media supported TR natively The entire FE transparently forwarded cloud appears as a single ring and hence a single hop to attached TR endstations This also allows FE servers to participate in source routing m Attached Lan Id A unique number that identi fies the segment to which the port connects This value can be set between 0 and FFF 0 4095 A value of FFFF 65535 indicates that no segment number has been assigned to this port a Route Desc This value descri
54. t select APPLY to invoke the changes As soon as you select a different VLAN using the VLAN field any edits not already applied are lost Each time you complete the entry fields for a VLAN Included in this screen are the following fields m VLAN Name Name assigned to identify each up to 16 VLANs m 802 1q VLAN ID A 12 bit ID used to identify a particular frames for routing across FE media This ID defines which frames should be received and forwarded to a VLAN via the TR in FE module If TR ports on separate boxes are to be connected via TR in FE then this parameter must be identically configured on both boxes By default all TR ports are assigned to VLAN 1 and the 802 1q VLAN ID is identical to the VLAN number assigned to the box TR VLAN Setup Screen Use this screen to assign VLANs to the TR in FE port and to associate a backbone port the place to which unknown unicasts are forwarded with each VLAN To set up proceed as follows from the I O Module menu 1 Use the Space Bar to scroll to VLAN 2 Select SETUP 3 Press Return The VLAN Info Setup screen appears See Figure 5 5 5 6 CHAPTER 5 CONFIGURING THE TR IN FE MODULE SuperStack Il Switch 2000 TR VLAN Setup Port Tupe ULAN Membership 2 3 4 5 6 7 8 9 10 Unit ID 11 Port ID 4TR 1 ULRN ID 1 Backbone Port No APPLY CANCEL Figure 5 5 VLAN Setup Screen 4 Scroll the VLAN list using the Up an
55. tack II Switch 2000 TR Token Ring in Fast Ethernet Module Guide is intended for use by net work administrators responsible for installing and setting up networking equipment It assumes a basic working knowledge of Local Area Networks Token Ring Networks and Ethernet Basic TR in FE con cepts are explained within this guide The Release Notes shipped with the TR in FE Module may contain information that updates or overrides information in this guide You should always follow the information in the Release Notes if it is differ ent from the information given in this guide Terminology In this manual the term TR in FE Module is used when referring to the SuperStack Il Switch 2000 TR Token Ring in Fast Ethernet Module The device into which the TR in FE Module is fitted is known simply as the Switch An example of a Switch is 3Com s SuperStack Il Switch 2000 TR This type of switch is often referred to as an edge device edge switch or boundary switch Name used in guide Includes Switch 2000 TR SuperStack Il Switch 2000 TR Finding Information in this Guide The following table shows you where to find spe cific information within this guide Task Location Learning features benefits and con cepts Planning your net work Installing the TR in FE Module Accessing screens Monitoring the Module Getting Technical Support Chapter 1 Overview Chapter 2 TR in FE Concepts Chapter
56. tricted by the hardware that physically connects them and segments are defined by flexible user groups created by the user For example with VLANS the user can define a net work according to Department Groups A VLAN could be created for the Marketing Department another VLAN for the Finance Department and still another for the Devel opment Department Hierarchical Groups A VLAN could be created for directors another for managers and still another for general staff Usage Groups A VLAN could be created for Email users another for multimedia users and so on Advantages of VLAN All 802 media and shared media support VLANs In addition implementing VLANs m Eases the change of devices Helps control broadcast traffic m Provides extra security Virtual LANs VLANS 2 7 VLANs facilitate the administration of logical groups of stations that can communicate as though they were on the same LAN VLANs also facilitate moves adds and changes of members of logical groups Traffic between VLANs is firewalled This limits the propagation of multicast and broadcast traffic between VLANs Each distinct VLAN is uniquely identified throughout the bridged LAN A consistent representation of a VLAN exists across a VLAN fabric including FE and ATM This means that the shared VLAN knowledge of a particular packet remains the same as the packet travels from one point to another Port Based Distribution gt The sw
57. unning full duplex ensure that the other end of the link supports it A repeater will not support full duplex whereas a Switch such as the SuperStack 3000 will NOTE The Fast Ethernet switch does not have to bea SuperStack Il 3000 However due to the 30005 capa bility of handling frame sizes larger than 1500 bytes as well as its cost efficiency the 3000 is the switch of preference for anchoring the system Power up the switch The link status LED turns green once a valid connection is made Post Installation Checks 3 3 SERIAL NO Token Ring in Fast Ethernet Module x Rx FarEndStatus Tx linkStaus LOTO 0h 1 S o Console Port 96008 1 N 3510630 9 9 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 m LEDs on the Switch are described in Table 3 1 m LEDs on the TR in FE Module are described in Table 3 2 3 4 CHAPTER 3 INSTALLING AND SETTING UP THE MODULE Table 3 1 Front Panel LEDs on the Switch 2000 TR Table 3 2 LEDs on the TR in FE Module Panel
58. ver 20 dB minimum Receiver power 14 db maximum 31 dB minimum sensitivity 14 dB maximum sensitivity Maximum attenuation includes attenuation and the loss induced by other components such as connec tors splices and the mating of unlike fiber types Although some 2 km 1 25 miles cables have a total attenuation of less than 11 0 dB the 2 km 1 25 miles inter station distance must be maintained to comply with modal bandwidth requirements The maximum attenuation value in this table is based on a cable diameter of 62 5 80 or 100 um The following table shows alternative Multi Mode fiber types that can be used Core mm Cladding mm Numerical Aperture 50 125 0 20 50 125 0 22 85 125 0 28 100 140 0 29 If you are using fiber with a diameter of 50 um and have 3Com equipment at both ends of the link sub stitute 8 0 dB for the maximum attenuation If 3Com equipment is only at one end substitute 6 0 dB for the maximum attenuation value If you are using equipment at the end of the link from a vendor other than 3Com you must perform a sepa rate loss budget analysis Contact the vendor s for values to use in your analysis Does the Cable Provide Sufficient Bandwidth Bandwidth for multi mode fiber is referred to as modal bandwidth because it varies with the modal field or core diameter of the fiber Modal bandwidth is specified in units of MHz km which indicates the amount of bandwidth supported by the fib
59. ware including Country Telephone 24 Number revision levels U K 44 1442 278279 m Details about recent configuration changes if U S 1 408 727 7021 applicable If you are unable to contact your network supplier see the following section on how to contact 3Com Support from 3Com If you are unable to receive support from your net work supplier technical support contracts are avail able from 3Com In the U S and Canada call 800 876 3266 for cus tomer service If you are outside the U S and Canada contact your local 3Com sales office to find your authorized service provider Country Telephone Number Australia 1 800 678 515 Belgium 0800 71429 Brazil 55 11 546 0869 Canada 416 498 3266 Denmark 800 17309 Finland 0800 113153 France 05 917959 Germany 0130 821502 Hong Kong 852 2501 1111 Ireland 1 800 553117 Italy 1678 79489 Japan 81 3 3345 7251 Mexico 525 520 7841 Support from 3Com D 3 Country Telephone Number Netherlands 06 0227788 Norway 800 11376 Singapore 65 538 9368 South Africa 27 11 807 4397 Spain 900 983125 Sweden 020 795482 Taiwan 886 2 577 4352 United Arab Emirates 971 4 349049 U K 0800 966197 U S 1 408 492 1790 These numbers are toll free Returning Products for Repair A product sent directly to 3Com for repair must first be assigned a Return Materials Authorization RMA number A product sent to 3Com without an R

Download Pdf Manuals

Related Search

Related Contents

L09Lfr (French news)    Operating Instructions  GE JBS08PIC User's Manual  SRD-470KDN  Radica Games I7005 User's Manual    Manual de instrucciones  DISTAR SERVICE MANUAL  全ページ一括表示（PDFファイル：8719KB）  

Copyright © All rights reserved. Failed to retrieve file