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Cabletron Systems 42T, MICROMMAC COM Port Applications, LCD and LCD Display Button, Reset Button

Models: 42T MICROMMAC MICROMMAC-22T

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INTRODUCTION

numerous management devices and serve as their management data representative. The network management station then has to query only one management device, the MicroMMAC-T in DLM mode, to access management data for all management devices on the network.

Consult your network manager for DLM setup.

COM Port Applications

Both of the front panel COM ports are factory-conﬁgured to support Local Management connections. Select among conﬁguration options for Local Management, Uninterruptible Power Supplies (UPS), the Serial Line Internet Protocol (SLIP), and modems.

LCD and LCD Display Button

MicroMMAC-T’s front panel LCD used in conjunction with the LCD display button provides you with comprehensive system-level information such as power-up diagnostics, FLASH image revision levels, IP addresses, and error alerts. See Section 5.2 for more information.

Reset Button

The Reset button on the front panel initializes the processor when pressed. The information contained in NVRAM is retained after initialization. See Section 3.5 for more information.

MIB Support

The MicroMMAC-T provides access to the following Management Information Bases:

Standard MIBs

•MIB-2 (RFC 1231)

•IEEE RMON MIB (RFC 1271)

•RMON Extensions for Token Ring (RFC 1513)

Cabletron Enterprise MIBs

•Download

•MIB-II Extensions

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Cabletron Systems 42T, MICROMMAC-22T manual COM Port Applications, LCD and LCD Display Button, Reset Button, MIB Support

Contents

MICROMMAC-22T/24T/42T/44T STACKABLE TOKEN RING INTELLIGENT HUBS USER’S GUIDECopyright March 1996 by Cabletron Systems, Inc VCCI NOTICE FCC NOTICEDOC NOTICE CABLETRON SOFTWARE PROGRAM LICENSE EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITYCABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT UNITED STATES GOVERNMENT RESTRICTED RIGHTS CHAPTER 3 INSTALLATION CONTENTSCHAPTER 2 REQUIREMENTS/SPECIFICATIONS CHAPTER 1 INTRODUCTIONCHAPTER 5 TROUBLESHOOTING CHAPTER 4 LOCAL MANAGEMENT5.2.4 Saved System Messages 5.3 VIEWING POWER UP DIAGNOSTIC TESTS CONTENTSDISPLAY RESET 1.1 CONTENTS OVERVIEWCHAPTER INTRODUCTION Figure 1-1. The MicroMMAC-T1.2 MicroMMAC-T OVERVIEW INTRODUCTIONFigure 1-2. Typical MicroMMAC-T Conﬁguration Scenario 1.3 MicroMMAC-T FEATURESTelnet Active TCU Ports Cable Signal PolaritySpeed Fault Protection Local ManagementLANVIEW LEDs Ring Speed SwitchFlash EEPROM Cabletron’s Distributed LAN Monitor ModeLCD and LCD Display Button Reset ButtonCOM Port Applications MIB SupportRMON MIB Support 1.4 STACKABLE CAPABILITIES Table 1-2. RMON MIB RFC 1271/1513 Support Cont1.5 BRIDGING/ROUTING CAPABILITIES Figure 1-3. Typical Stackable Conﬁguration1.7 TELNET CAPABILITIES 1.5.1 SNA/WAN Integration1.6 REMOTE MANAGEMENT CAPABILITIES Local Area Networks, Token Ring Access Method, IEEE Standard 802.5 1.8 RECOMMENDED READING1.9 GETTING HELP Commercial Building Wiring Standard, EIA/TIA-568CHAPTER REQUIREMENTS/SPECIFICATIONS 2.1 CABLE SPECIFICATIONS2.1.1 UTP Cable Speciﬁcations Attenuation and ImpedanceMaximum Number of Stations Maximum Lobe LengthsType 3 Media Filters Maximum Lobe Lengths 2.1.2 STP Cable SpeciﬁcationsAttenuation and Impedance Table 2-3. STP Cable SpeciﬁcationsTable 2-4. STP Maximum Lobe Lengths Maximum Trunk LengthsMaximum Number of Stations Table 2-5. STP Maximum Drive Distance2187.2 yards. However, IEEE The maximum allowable ﬁberoptic cable length is 2 km 802.5 speciﬁcations allow for aMaximum Trunk Lengths 2.1.4 Single Mode Fiber Optic Cable SpeciﬁcationsFiber Optic Budget AttenuationCrosstalk 2.2 CABLE RECOMMENDATIONS/TROUBLESHOOTINGFiber Optic Budget Noise2.3 COM PORT SPECIFICATIONS Local Management 2.4 TPIM SPECIFICATIONSBooting/Diagnostics SLIPTPIM-T2 TPIM-T4NOTE Transmitter power and receive sensitivity levels, shown in TPIM-F2TPIM-F2 Speciﬁcations REQUIREMENTS/SPECIFICATIONSTPIM-F3 ParameterWhen measuring power levels with an Average Power Meter, add 3 dBm Table 2-9. TPIM-F3 Speciﬁcations2.5.2 Environmental Requirements 2.5 GENERAL SPECIFICATIONS2.5.1 Power Supply Requirements 2.5.4 Physical 2.5.3 SafetyService 2.5.53.2 ATTACHING THE STRAIN RELIEF BRACKET CHAPTER INSTALLATION3.1 UNPACKING THE MicroMMAC-T INSTALLATION 3.3 INSTALLING THE MicroMMAC-T3.3.1 Rack-Mounting the MicroMMAC-T Figure 3-3. Installing the MicroMMAC-T in a 19-inch Rack 3.3.2 Wall-Mounting the MicroMMAC-TFigure 3-2. Installing of Rack-Mount Brackets Figure 3-4. Wall-Mounting the MicroMMAC-T Molly Screw Anchors Molly Screws Bracket Screws Wall Mounting Bracket3.5 RESETTING THE MICROMMAC-T 3.3.3 Free-Standing Installation3.4 CONNECTING TO A POWER SOURCE Figure 3-5. Free-Standing InstallationTo change the ring speed 3.6 SETTING THE RING SPEEDTo reset the MicroMMAC-T 3.7 SETTING THE NVRAM SWITCH To restore MicroMMAC-T parameters to the factory defaults3.8 CONNECTING LOBE PORT CABLING NOTE Clearing and resetting NVAM does not reset the date and timeat TCU INSTALLATIONRJ45 Plug at device port3-10 INSTALLATIONFigure 3-10. UTP Conﬁguration Example Lobe CableFigure 3-11. STP Conﬁguration Example INSTALLATIONTo attach a lobe segment to a MicroMMAC-T network port Figure 3-12. MicroMMAC-T Network Ports3.9 INSTALLING TPIM MODULES 3.9.1 Setting Phantom and RI/RO Switches Table 3-1. Pinout Cross-Reference for TPIMs ContCAUTION Observe all static precautions while handling TPIMs 3.9.2 TPIM InstallationTo install a TPIM, perform the following steps 3.9.3 Connecting STP Segments To connect a TPIM-T1 to a Twisted Pair Segment3.9.4 Connecting Twisted Pair Segments To connect a segment to a TPIM-T2/-T43.9.5 Connecting Fiber Optic Link Segments Figure 3-16. The TPIM-T2/-T4To connect a ﬁber optic link segment to the TPIM-F2 /-F3 Figure 3-17. The TPIM-F2/-F33.10 CHECKING THE INSTALLATION To check MicroMMAC-T installationUse Local Management to Do the Following CHAPTER LOCAL MANAGEMENT4.1 MANAGEMENT TERMINAL REQUIREMENTS To attach a management terminal to the MicroMMAC-T 4.1.2 Management Terminal Setup Parameters4.1.1 Attaching the Management Terminal 4.1.3 Modem Cable Conﬁguration and Setup Table 4-1. Terminal Settings for LM Terminal4.2 ACCESSING LOCAL MANAGEMENT To access Local Management4.2.1 Accessing Local Management via Telnet Figure 4-3. MicroMMAC-T Local Management ScreenSETUP MENU Screen 4.2.2 Accessing Local Management from a Modem4.3 USING LOCAL MANAGEMENT MAIN MENU ScreenSETUP MENU STATUS MENU DEVICE STATISTICS MIB NAVIGATOR EXIT 4.3.1 Working with Local Management ScreensSetting or Modifying Local Management Screen Fields SETUP MENUExiting a Local Management Screen Exiting Your Local Management Session4.3.2 The SYSTEM LEVEL Screen Setting the System DateSetting the System Time Setting the Host IP AddressModifying the Subnet Mask To modify the Subnet MaskSetting Automatic Beacon Recovery Process ABRP Fields Setting the Default GatewayTo set the Default Gateway NOTE ARBP is supported only by Cabletron productsTo set the Beacon Recovery ﬁeld To set the Number of Retries ﬁeld 4.3.3 The SNMP COMMUNITY NAMES ScreenSetting COM 1 and COM 2 Applications To set the Retry Interval ﬁeldRead-Write The user can view all LM ﬁelds and can edit all but the Community Name 4.3.4 The SNMP TRAPS ScreenAccess Policy Editing the Community Name ﬁeldTrap Destination Enable TrapsSetting SNMP Traps Trap Community Name4.3.5 The RING SECURITY Screen You can select from two modes of ring security Alarm Only Security Mode STATION ADDRESSStn Edit NOTE The NMS receives each station added trap once onlyPREVIOUSSCREEN SAVE/EXECUTENEXTSCREEN RETURNDeleting Stations from the STATION ADDRESS Allowed List Viewing the Revised Allowed ListAdding Stations to the STATION ADDRESS Allowed List NOTE You cannot delete the Micro-MMAC-T address from the list4.3.6 The DEVICE STATISTICS Screen DEVICE STATISTICSSelecting the Device Statistics Counter Mode Using the ACCUMULATIVE Counter ModeSetting the Refresh Field Frames ReceivedLine Errors Errors ReceivedISOLATING ERRORS Burst ErrorsInternal Errors AC ErrorsAbort Transmit Errors RING INFORMATIONLost Frame Errors Ports EnabledNON-ISOLATING ERRORS Ring NumberRcvr Congestion Errors 4.3.7 The CHASSIS STATUS VIEW ScreenFrame Copied Errors Token ErrorsVirtual Flexible Network Bus VFNB ModePort Status NEXT ENABLE ALL PORTS ADMINISTRATIVE mode onlyScreen Mode Status PREVIOUSReturn key Setting the REFRESH FieldUsing the OPERATIONAL Mode Screen To display the status of ports To display the status of RI/RO ports, BRIMs, or the MicroSNAC deviceUsing the ADMINISTRATIVE Mode Screen To enable and disable select portsTo bypass all ports on a module To enable all ports for all modulesUsing the RING OUT ENABLE Mode Screen To reconnect a module to the token ring4.3.8 The COMPONENT STATUS Screen To switch to and from STN and RO4.3.9 The MIB NAVIGATOR Screen Figure 4-13. COMPONENT STATUS VIEW ScreenTo escape from the MIB NAVIGATOR screen To access a list of MIB commandsTo get help on speciﬁc commands bran tree Built-In commandsnext whoamisnmp branch 4.3.10 The FLASH DOWNLOAD Screenping snmpgetDownload Method ﬁeld To chose the RUNTIME methodFlash Image Server IP To choose the BOOTPROM method2. Toggle from RUNTIME to BOOTPROM using the spacebar Flash Image File NameCHAPTER TROUBLESHOOTING 5.1 USING LANVIEW LEDs5.2 USING THE LCD DISPLAY 5.2.1 Static System Messages Table 5-2. Static System MessagesTable 5-3. Alarm Messages 5.2.2 Alarm MessagesTROUBLESHOOTING DisplayedTable 5-4. Unsaved Failure or Error Messages 5.2.3 Unsaved Initialization MessagesTable 5-3. Alarm Messages Cont Table 5-6. Saved System Messages 5.2.4 Saved System MessagesTable 5-5. Normal Unsaved Initialization Messages Responding to Error Messages 5.3 VIEWING POWER UP DIAGNOSTIC TESTSNOTE The LCD displays the following message whenever the POWER To execute a response option To return to Local ManagementSPANISH POWER SUPPLY CORDGERMAN FRENCH