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Cabletron Systems TRBMIM-T User Manual

Token ring bridge/management module
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BOOKTITLE2 OPTIONAL
TRBMIM-T
TOKEN RING BRIDGE/MANAGEMENT MODULE
USER'S GUIDE

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  • Page 1 BOOKTITLE2 OPTIONAL TRBMIM-T TOKEN RING BRIDGE/MANAGEMENT MODULE USER’S GUIDE...
  • Page 3 Printed in the United States of America Order Number: 9031496-01 July 1996 EMME, EMM-E6, SPECTRUM, TRMM, TRMMIM, TRBMIM, and TRBMIM-T are registered trademarks, and TPIM is a trademark of Cabletron Systems, Inc. All other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies.
  • Page 4 NOTICE FCC NOTICE This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
  • Page 5 CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT IMPORTANT: Before utilizing this product, carefully read this License Agreement. This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron software program (the “Program”) contained in this package.
  • Page 6 NOTICE UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its suppliers.
  • Page 7 DECLARATION OF CONFORMITY Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: European Representative Name: European Representative Address: Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC Equipment Type/Environment: Networking Equipment, for use in a Commercial or Light Industrial Environment. We the undersigned, hereby declare that the equipment packaged with this notice conforms to the above directives.
  • Page 8 NOTICE...

  • Page 9: Table Of Contents

    General Specifications... 2-10 2.6.1 Safety... 2-10 2.6.2 Electromagnetic Compatibility (EMC) ... 2-10 2.6.3 Port Specifications ... 2-10 2.6.4 Physical Specifications ... 2-10 2.6.5 Environmental Specifications... 2-11 CHAPTER 3 INSTALLATION Unpacking And Handling The TRBMIM-T ... 3-1 Installing The TRBMIM-T... 3-1 CONTENTS...
  • Page 10 Monitoring The Initialization Process ...5-6 5.2.1 Monitoring With The Power Up Diagnostic Screen ...5-6 5.2.2 Monitoring With LEDs...5-8 Troubleshooting Checklist...5-8 5.3.1 Checking The TRBMIM-T...5-8 5.3.2 Checking The Entire Ring ...5-10 APPENDIX A TPIM SPECIFICATIONS TPIM-T1/T2/T4 Pinouts... A-1 TPIM-F2/F3 Specifications... A-2...

  • Page 11: Chapter 1 Introduction

    Welcome to the TRBMIM-T Token Ring Bridge/Management Module User’s Guide. This manual describes TRBMIM-T (see Figure 1-1) capabilities and features, operating specifications, and configuration, installation, and troubleshooting procedures. Users of the TRBMIM-T should have a basic working knowledge of the IEEE 802.5 standard for Token Ring networks, Token Ring network physical components, and source-route bridging concepts.

  • Page 12: Document Conventions

    The bridge symbol is used in illustrations to indicate bridged Token Rings. 1.2 GETTING HELP If you need assistance installing or using the TRBMIM-T, or if you have any questions, comments, or suggestions concerning this manual, contact Cabletron Systems Technical Support:...

  • Page 13: Using This Manual

    Chapter 3, Installation, describes how to install the TRBMIM-T into an MMAC. Chapter 4, Establishing the Bridge Connection, describes how to setup the front-panel bridge Station port and establish the physical bridge connection between Token Rings.

  • Page 14: Trbmim-T Overview

    MMAC where the TRBMIM-T is installed or supported by another MMAC or standalone hub. See Chapter 4 for information on how to set up the bridge Station port and establish the physical bridge connection between rings.
  • Page 15 Out-of-band connection to the front-panel RS-232 Console port to a VT-series terminal or a PC running a VT-series emulation program In-band Telnet connection from any TCP/IP - based node linked to the TRBMIM-T • Selectable operating modes: Bridge/Management for bridging and ring management...

  • Page 16: Describing Bridge-Only Mode Capabilities

    Bridging Token Rings In The Same MMAC Figure 1-2 illustrates how the TRBMIM-T can be used to bridge Ring 1 and Ring 2 in the same MMAC. In this configuration the TRBMIM-T’s FNB port is connected to Ring 2. Its front-panel bridge Station port is connected to Ring 1 via cable to any lobe port on any MIM on Ring 1.
  • Page 17 INTRODUCTION Bridging Token Rings In Separate MMACs Figure 1-3 illustrates how the TRBMIM-T can be used to bridge Ring 1 in one MMAC and Ring 2 in another MMAC. In this configuration the TRBMIM-T’s FNB port is connected to Ring 1. Its front-panel bridge Station port is connected to Ring 2 via cable to any lobe port on any MIM on Ring 2.

  • Page 18: Describing Bridge/Management Mode Capabilities

    4 Mbps or 16 Mbps ring speeds and linked to the backbone via either twisted pair copper or fiber media. In this configuration each TRBMIM-T’s FNB port is connected to a common FNB ring in the MMAC. Each TRBMIM-T’s front-panel bridge Station port is connected to a separate ring via cable to any lobe port on any MIM on each ring.
  • Page 19 Management Functionality In The MMAC When configured for operation as a combination Bridge/Management module and installed in any MIM slot in the MMAC, the TRBMIM-T automatically bisects the FNB backplane. This creates a new FNB ring, supporting Token Ring stations connected to the media interface modules inserted to the left of the TRBMIM-T.

  • Page 20: Monitoring And Troubleshooting Systems

    TRBMIM-T in the Bridge-Only mode is recommended. 1.4.3 Monitoring And Troubleshooting Systems LANVIEW LEDs, located on the TRBMIM-T front panel, provide an at-a-glance method of monitoring the module’s operational status. LEDs indicate, for example, whether the module is operating correctly and the ring operating speed.

  • Page 21: System Safeguards

    1.4.5 Management Access This section describes TRBMIM-T management resources. Local Management (LM) LM is the management agent in TRBMIM-T that provides multiple applications for controlling and monitoring all functional aspects of the TRBMIM-T and its host Token Ring network. INTRODUCTION...
  • Page 22 Local Management applications. Remote Management Support The TRBMIM-T is an SNMP-compliant device that can be remotely managed by any of the products available from Cabletron Systems line of SPECTRUM remote management applications. SNMP support is provided by the MIB groups listed in Table 1-1.

  • Page 23: Ip Address Auto-Configuration

    1.4.6 IP Address Auto-Configuration If the TRBMIM-T does not have an IP address when it is powered up, it automatically transmits up to seven BootP requests for an IP address from any BootP server on the network that can provide it. Causative conditions include: •...

  • Page 24: Related Manuals

    Specifically Routed Frame (SRF) containing both route information and the data for the destination station. See the TRBMIM/TRBMIM-T Local Management User’s Guide for information about working with the Bridge Setup application used to establish SR bridging parameters.

  • Page 25: Recommended Reading

    INTRODUCTION 1.7 RECOMMENDED READING The following publications are recommended if more information is required on designing and implementing a Token Ring network. Local Area Networks, IEEE Standard 802.5 Token Ring Access Method And Physical Layer Specifications Commercial Building Wiring Standard, TIA/EIA-568A Standard 1-15...
  • Page 26 INTRODUCTION 1-16...

  • Page 27: Chapter 2 Requirements And Specifications

    Failure to follow specified operational guidelines could result in poor network performance. 2.1 MMAC REQUIREMENTS Any MMAC into which a TRBMIM-T is installed must be equipped with a Cabletron Systems Flexible Network Bus (FNB) backplane. The FNB serves as the communication medium for modules in the MMAC.

  • Page 28: Bridge/Management Mode Requirements

    REQUIREMENTS AND SPECIFICATIONS MIM Slots MMAC-M3FNB/-3FNB 2.3 BRIDGE/MANAGEMENT MODE REQUIREMENTS To operate in the Bridge/Management mode, the TRBMIM-T must be used in conjunction with either of the following management modules installed in the management slot in the MMAC: • TRMM – Token Ring Management Module •...

  • Page 29: Port Specifications

    Station Port The Station port serves as the external bridge port on the TRBMIM-T. You can install any of the Token Ring Port Interface Modules (TPIMs) listed in Table 2-1 in the Station-port receptacle, enabling you set up the port for connection to MIMs equipped with either twisted-pair or fiber-optic lobe ports.
  • Page 30 Appendix B for information about media specifications. Console Port You can connect a management terminal to the RS-232C female DB9 console port on the TRBMIM-T to access Local Management. See the TRBMIM/TRBMIM-T Local Management User’s Guide for information on setting up the management-terminal connection and using Local Management.

  • Page 31: Lanview Leds

    Front-panel LANVIEW LEDs together with the LNK LED on the TPIM installed in the TRBMIM-T provide an at-a-glance means of determining the operational status of the TRBMIM-T and the Token Ring network. LEDs convey information about the following system conditions and events: •...

  • Page 32: Using The Reset Button

    Token Ring installation using LEDs. 2.4.3 Using The Reset Button The Reset button is used to reset, or restart, the TRBMIM-T. During the reset process the TRBMIM-T runs various system-initialization tests. When you reset the TRBMIM-T you temporarily stop it from performing any management and bridging functions until the reset process has been completed.

  • Page 33: Dip Switch Settings

    Avoid contact with other board components. Selecting The Operational Mode (SW1 – Switch 2) Use Switch 2 on SW1 to select the operational mode for the TRBMIM-T. • The SW1 – Switch 2 default setting is ON for the Bridge-Only mode.
  • Page 34 REQUIREMENTS AND SPECIFICATIONS Battery Backup Jumper DISABLED 1 2 3 4 5 6 7 8 Figure 2-5 Default Dip Switch and Jumper Settings Table 2-2 Switch Settings Description Switchblock SW 1 (firmware settings) Switch 2 ON = Bridge-Only mode OFF = Bridge/Management mode Switches 1, 3, 4, 5, 6, 7, &...

  • Page 35: Jumper Settings

    Use JP6 to enable or disable the backup battery. The battery supplies power to NVRAM and the real time clock and calender when the TRBMIM-T is not installed in and drawing power from the MMAC and also when the TRBMIM-T is being reset in the MMAC.

  • Page 36: General Specifications

    To internally assert CTS, place the JP5 jumper over pins 2 and 3. Use this setting if your modem requires CTS. 2.6 GENERAL SPECIFICATIONS This section lists various TRBMIM-T specifications. 2.6.1 Safety This unit meets the safety requirements of UL 1950, CSA C22.2 No. 950, and EN 60950, IEC950, and 73/23/EEC.

  • Page 37: Environmental Specifications

    2.6.5 Environmental Specifications Operating Temperature: Storage Temperature: Relative Humidity: REQUIREMENTS AND SPECIFICATIONS 5 to 40 C -30 to 90 C 5% to 95% non-condensing 2-11...
  • Page 38 REQUIREMENTS AND SPECIFICATIONS 2-12...

  • Page 39: Chapter 3 Installation

    1. Carefully remove the TRBMIM-T from the shipping box. Save the box and packing materials for possible repackaging and shipment. 2. Leave the TRBMIM-T in the protective bag until you are ready to configure and install it. If you remove the TRBMIM-T from the bag, set it on top of the bag in a dry, static-free, and dust-free area until you are ready to install.
  • Page 40 INSTALLATION The TRBMIM-T can be installed into any MMAC MIM slot, as described in Section 2.1. Perform the following tasks before you install the TRBMIM-T: • Specify the ring speed for the FNB and bridge Station port interfaces • Specify the operational mode (Bridge-Only or Bridge/Management) •...
  • Page 41 2. Align the TRBMIM-T in the top and bottom module slots in the MMAC and slide it in, as shown in Figure 3-2, until you feel the backplane connectors on the TRBMIM-T firmly insert into the FNB backplane connector sockets.
  • Page 42 INSTALLATION...

  • Page 43: Chapter 4 Establishing The Bridge Connection

    ESTABLISHING THE BRIDGE CONNECTION This section describes how to setup and establish the physical bridge connection between the TRBMIM-T Station port and a lobe port on another ring. See the TRBMIM/TRBMIM-T Local Management User’s Guide for information on configuring source-route bridging parameters.
  • Page 44 TPIM-F3 as shown in Figure 4-2 to determine functional compatibility with the TRBMIM-T. To configure TPIMs for use with the TRBMIM-T use a blunt, narrow-tipped instrument such as a screwdriver to move switches to the positions specified in Figure 4-2.

  • Page 45: Installing A Tpim

    4.1.2 Installing A TPIM All Cabletron TPIMs are “hot swappable.” You do not have to NOTE power down or remove the TRBMIM-T to install a TPIM. To install a TPIM: 1. Remove the self-fastening faceplate covering the TPIM/Station receptacle. 2. Slide the TPIM all the way into the TPIM slot, as shown in Figure 4-3, until you feel the TPIM-slot connection pins insert securely into the TPIM connection sockets.

  • Page 46: Connecting Twisted Pair Cable

    4.2 CONNECTING TWISTED PAIR CABLE This section describes how to connect shielded and unshielded twisted pair cable to the TRBMIM-T Station port. It also describes how to check the status of the connection using the LNK LED. Use the TPIM-T1 to connect an STP cable segment with a DB9 connector as shown in Figure 4-4.
  • Page 47 1. Check that the device at the other end of the connection has power and that the lobe port to which the TRBMIM-T is connected is enabled. 2. Verify that the connectors are pinned properly.

  • Page 48: Connecting Fiber Optic Cable

    ESTABLISHING THE BRIDGE CONNECTION 4.3 CONNECTING FIBER OPTIC CABLE Use the TPIM-F2/ F3 to connect fiber optic cable. When connecting a fiber optic link segment to the TPIM-F2 or TPIM-F3 consider the following: • Fiber optic link segments with ST connectors attach to ST ports much like BNC connectors attach to BNC ports.
  • Page 49 TRBMIM-T is connected is enabled. 2. Verify that the fiber strands are properly “crossed-over” between the ports on the TRBMIM-T and on the fiber optic device at the other end of the connection.
  • Page 50 ESTABLISHING THE BRIDGE CONNECTION...

  • Page 51: Chapter 5 Monitoring And Troubleshooting

    This chapter describes LANVIEW LED functions and color codes and how to use LEDs to monitor and troubleshoot the operational status of the TRBMIM-T. It also describes how to monitor the system start-up, or initialization, process using the Power Up Diagnostic screen. The chapter concludes with a troubleshooting checklist.

  • Page 52: Describing System Leds

    Solid Red Flashing Red Try reinserting the TRBMIM-T in the MMAC or resetting the TRBMIM-T to resolve the problem indicated by a solid red ERR LED. If that does not resolve the problem, call Cabletron Systems Technical Support Department for assistance.

  • Page 53: Describing Fnb Leds

    There are no MIMs to the left of the TRBMIM-T. • The MIM to the TRBMIM-T’s left is running at a different ring speed. See the TRBMIM/TRBMIM-T Local Management User’s Guide for information about configuring logical FNB connections in the MMAC for the TRBMIM/TRBMIM-T.
  • Page 54 • There are no MIMs to the right of the TRBMIM-T. • The MIM to the TRBMIM-T’s right is running at a different ring speed. See the TRBMIM/TRBMIM-T Local Management User’s Guide for information about configuring FNB connections in the MMAC.

  • Page 55: Describing Stn Leds

    5.1.3 Describing STN LEDs STN LEDs convey information about the status of the bridge Station port. 16 Mb (Ring Speed) The 16 Mb LED indicates the ring speed for the bridge Station port: Solid Yellow For information about specifying the bridge Station-port ring speed, see Section 2.5.1.

  • Page 56: Monitoring The Initialization Process

    Solid Green Solid Red (TPIM-T1/T2/T4 only) (TPIM-F2/F3 only) 5.2 MONITORING THE INITIALIZATION PROCESS You can use the following TRBMIM-T resources to monitor the initialization, or power up, process: • Power Up Diagnostic screen • LED cycle The Power Up Diagnostic screen displays TRBMIM-T diagnostic activities occurring during the power up process that you can view from your management terminal.
  • Page 57 To view the test, connect your management terminal, or PC, to the TRBMIM-T Console port prior to power up or reset. See the TRBMIM/TRBMIM-T Local Management User’s Guide for information about connecting the management terminal. Responding To A Power Up Error Message Figure 5-1 shows the Power Up Diagnostic screen displaying an example test-information sequence with an error message and response options.

  • Page 58: Monitoring With Leds

    TRBMIM-T and the Token Ring network. 5.3.1 Checking The TRBMIM-T Check to see if the TRBMIM-T is passing traffic (using a Ping utility for example). If it is not, check the following: •...
  • Page 59 Its FNB ring speed is different from the ring speed for the FNB ring into which it is trying to insert. Make sure the FNB ring speed for the TRBMIM-T is set to run at the same ring speed as the FNB ring. See Section 2.5.1 for information on setting the TRBMIM-T FNB ring speed.

  • Page 60: Checking The Entire Ring

    5.3.2 Checking The Entire Ring If the TRBMIM-T appears to be functioning properly and traffic is not passing through the bridge, then the problem may be somewhere else within the network. Verify the items on the following checklist to help isolate the problem.
  • Page 61 For example: Ethernet MIMs must be grouped together. Token Ring MIMs must be grouped together. See Section 3.2 for information about installation guidelines for the TRBMIM-T. FDDI MIMs must be grouped together. • Ensure that the maximum lobe cable lengths specified for the media types used in the installation and also the maximum number of stations supported are not exceeded.
  • Page 62 MONITORING AND TROUBLESHOOTING 5-12...

  • Page 63: Tpim-T1/T2/T4 Pinouts

    TPIM SPECIFICATIONS This Appendix describes performance specifications for Cabletron Systems TPIMs. A.1 TPIM-T1/T2/T4 PINOUTS Figure A-1 illustrates TPIM-T1/T2/T4 pinouts for station application. TPIM-T1 1. Receive + 2. Ground 3. +5V at 250mA 4. Ground 5.Transmit - 6. Receive - 7. Ground 8.

  • Page 64: Tpim-F2/F3 Specifications

    TPIM SPECIFICATIONS A.2 TPIM-F2/F3 SPECIFICATIONS The TPIM-F2 supports Multimode fiber optic cabling, and the TPIM-F3 supports Single mode fiber optic cabling. TPIM-F2 The TPIM-F2 is designed to operate with 50/125 m, 62.5/125 m, and 100/140 m fiber optic cable. Table A-1 lists receiver sensitivity parameters for the TPIM-F2, and Table A-2 lists transmitter output power parameters for the TPIM-F2.
  • Page 65 Table A-3 TPIM-F3 Specifications Parameter Transmitter Peak Wave Length Spectral Width Rise Time Fall Time Transmitter Average Power Receiver Spectral Response Receiver Sensitivity Bit Error Rate: Better than 10 Transmitter power and receive sensitivity levels, shown in Table A-1, Table A-3, and Table A-3 are Peak Power Levels after optical overshoot. A Peak Power Meter must be used to correctly compare the values given to those measured on any particular port.
  • Page 66 TPIM SPECIFICATIONS...

  • Page 67: Unshielded Twisted Pair (Utp

    MEDIA SPECIFICATIONS This Appendix describes design and performance specifications for each of the media types used with the TRBMIM-T. B.1 UNSHIELDED TWISTED PAIR (UTP) A UTP segment consists of four pairs of 24 AWG solid wire for data or voice communication and is typically used to wire cable runs within building walls.

  • Page 68: Shielded Twisted Pair (Stp

    MEDIA SPECIFICATIONS Table B-1 UTP Performance Specifications EIA/TIA Electrical Category Impedance Cat. 3 Cat. 4 Cat. 5 B.2 SHIELDED TWISTED PAIR (STP) STP cable has a metallic shielded wrapped around the twisted pairs to protect the cable from intrusive and unwanted interference from outside sources.

  • Page 69: Fiber Optic

    Table B-2 STP Cable Specifications Types Frequency 4 MHz 1 & 2 16 MHz 4 MHz 6 & 9 16 MHz B.3 FIBER OPTIC A fiber optic cable is composed of a drawn fiber of pure glass, enveloped within a another layer of glass called cladding. Around the fiber (core and cladding) are wrapped multiple layers of reinforced matter that protect the fiber.
  • Page 70 MEDIA SPECIFICATIONS Table B-4 Single Tolerance For Single-Mode Fiber Optic Cable Cable Type Allowable Attentuation Single Mode 10.0 dB or less 8/125-12/125 m Typical Signal Attenuation Rate: < 0.5 dB/km Attenuation Testing Fiber optic cable must be tested with an attenuation test set adjusted for an 850 nm wavelength for Multimode and 1300 for Single Mode.
  • Page 71 Flash EEPROM 1-5 Flexible Network Bus (FNB) 2-1 FNB LEDs 16 Mb (Ring Speed) 5-3 LWRP (Left Wrap) 5-3 NSRT (Inserted) 5-4 RWRP (Right Wrap) 5-4 Handling the TRBMIM-T 3-1 Help from Cabletron Technical Support Department 1-2 "Hot swappable" 3-1 IX-1...
  • Page 72 INDEX IBM LAN NET Manager 1-4 Installation TPIM 4-3 TRBMIM-T in MMAC 3-1 to 3-3 IP address, auto-configuration 1-13 JP5 Jumper 2-10 JP6 Jumper 2-9 Jumper settings battery backup 2-9 Clear to Send (CTS) 2-10 LANVIEW LEDs describing 5-1 to 5-6...
  • Page 73 TRMM 2-2 TRMM-2/-4, restricted use with TRBMIM-T 2-2 Troubleshooting checklist 5-8 to 5-11 when connecting fiber segments 4-7 when connecting twisted-pair segments 4-5 Unpacking the TRBMIM-T 3-1 Unshielded Twisted Pair (UTP) connecting to Station port 4-5 specifications B-1 INDEX IX-3...
  • Page 74 INDEX IX-4...

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