Cabletron-systems MicroMMAC 24T MICROMMAC- Manuel d'utilisateur

MICROMMAC-22T/24T/42T/44T STACKABLE TOKEN RING INTELLIGENT HUBSUSER’S GUIDE

INTRODUCTION1-2 describes how to install a TPIM and concludes with installation check-out instructions.Chapter 4, Local Management , explains how to

TROUBLESHOOTING5-45.2.2 Alarm MessagesAlarm messages (Table 5-3) describe events that occur within the MicroMMAC-T. To view the Alarm Messages queue,

TROUBLESHOOTING5-55.2.3 Unsaved Initialization MessagesUnsaved intialization messages appear on the LCD as the event occurs, but are not saved in a b

TROUBLESHOOTING5-65.2.4 Saved System MessagesSaved System Message are device-related start-up or boot strap messages, BOOTP/TFTP host, or start-up er

TROUBLESHOOTING5-75.3 VIEWING POWER UP DIAGNOSTIC TESTSThe MicroMMAC-T runs from BootPROM comprehensive booting and diagnostic tests of the device wh

TROUBLESHOOTING5-8• retry• loopChoosing continue, or c, lets you proceed with the remainder of the diagnostic test. Choosing retry, or r, lets you rep

POWER SUPPLY CORDThe main cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorpo

INTRODUCTION1-3 Figure 1-2. Typical MicroMMAC-T Configuration Scenario All MicroMMAC-Ts are functionally and physically identical except for the numb

INTRODUCTION1-4 Active TCU Ports The active TCU ports regenerate, reshape, and filter the incoming signal, permitting UTP lobe cable lengths of up to

INTRODUCTION1-5 re-time all data. Cabletron offers a variety of TPIMs for RI/RO trunk connections as shown in Table 1-1. Ring Speed Switch Use the Ri

INTRODUCTION1-6 numerous management devices and serve as their management data representative. The network management station then has to query only

INTRODUCTION1-7 • Token Ring FNB (Flexible Network Bus)• DOT 5 Logical and Physical• UPS (Uninterruptible Power Supply)• Device• DLM (Distributed LAN

INTRODUCTION1-8 1.4 STACKABLE CAPABILITIES The MicroMMAC-T can be stacked with up to four HubSTACK STH series non-intelligent hubs as shown in Figur

INTRODUCTION1-9 Figure 1-3. Typical Stackable Configuration NOTE : Token Ring HubSTACK Interface cables, which are used to connect between the MicroM

INTRODUCTION1-10 . 1.5.1 SNA/WAN Integration The MicroSNAC add-on daughterboard provides two ports, both of which can be used to provide conversion

INTRODUCTION1-11 module. This feature complements the remote SNMP management and allows for quick hub configuration changes or checks. 1.8 RECOMMENDE

iii NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notic

2-1 CHAPTER 2REQUIREMENTS/SPECIFICATIONS Read this chapter prior to installing the MicroMMAC-T. It contains operating specifications and requirements

REQUIREMENTS/SPECIFICATIONS2-2 2.1.1 UTP Cable Specifications The MicroMMAC-22T and MicroMMAC-24T lobe ports and the TPIM-T2 support voice grade Unsh

REQUIREMENTS/SPECIFICATIONS2-3Maximum Lobe LengthsLobe length is the physical length of the cable connecting a station to its TCU port at the MicroMMA

REQUIREMENTS/SPECIFICATIONS2-42.1.2 STP Cable SpecificationsMicroMMACs 42T and 44T and TPIMs T1 and T4 support IBM Type 1, 2, 6, and 9 STP cabling as

REQUIREMENTS/SPECIFICATIONS2-5cable length for ring speeds of 4 and 16 Mbps. The cable lengths listed in Table 2-4 refer to total lengths made up of S

REQUIREMENTS/SPECIFICATIONS2-6Mixed Cable TypesIf multiple cable types exist in network, compensations must be made for the different cable attenuatio

REQUIREMENTS/SPECIFICATIONS2-7Fiber Optic Budget The fiber optic delay budget, which determines the fiber optic cable’s maximum length, should be calcul

REQUIREMENTS/SPECIFICATIONS2-8Fiber Optic Budget The fiber optic delay budget, which determines the fiber optic cable’s maximum length, should be calcul

REQUIREMENTS/SPECIFICATIONS2-9Other ConsiderationsIn addition to complying with the preceding cable specifications, the following recommendations shoul

REQUIREMENTS/SPECIFICATIONS2-10Local ManagementBoth COM 1 and COM 2 ports are factory-configured to support Local Management access by an actual or emu

NOTICEiv 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

REQUIREMENTS/SPECIFICATIONS2-11Figure 2-3. TPIM-T1 PinoutsTPIM-T2TPIM-T2 provides an RJ45 connector that supports UTP cabling. Figure 2-4 shows pinou

REQUIREMENTS/SPECIFICATIONS2-12Figure 2-5. TPIM-T4 PinoutsTPIM-F2TPIM-F2, shown in Figure 2-6, provides an ST connector that supports Multimode fiber

REQUIREMENTS/SPECIFICATIONS2-13.TPIM-F3TPIM-F3, shown in Figure 2-7, is an ST connector that supports Single Mode fiber Optic cabling.Figure 2-7. The

REQUIREMENTS/SPECIFICATIONS2-14NOTE: Transmitter Power decreases as temperatures rise and increases as temperatures fall. Use the Output Power Coeffici

REQUIREMENTS/SPECIFICATIONS2-15to the average power measurement to correctly compare the average power values measured to the values listed above (i.e

REQUIREMENTS/SPECIFICATIONS2-16Non-operating Temperature: -30° to +90°COperating Humidity: 5 to 95% (non-condensing)2.5.3 SafetyThis unit meets the s

3-1CHAPTER 3INSTALLATIONThis chapter outlines MicroMMAC-T installation and network connection procedures. Be sure that the network meets the guidelin

INSTALLATION3-2Figure 3-1. Attaching the Strain Relief Bracket3.3 INSTALLING THE MicroMMAC-TThe MicroMMAC-T can be rack-mounted, wall-mounted, or pl

INSTALLATION3-32. Using the four cover screws removed in step 1, attach the rack-mounting brackets to each end of the MicroMMAC-T. Figure 3-2. Instal

INSTALLATION3-4Figure 3-4. Wall-Mounting the MicroMMAC-T2. Select a wall location within seven feet of a power outlet for the MicroMMAC-T.WARNING: Wh

NOTICEv CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT IMPORTANT: Before utilizing this product, carefully read this License Agreement.This docum

INSTALLATION3-53.3.3 Free-Standing InstallationFor a free-standing shelf or table top installation, locate the MicroMMAC-T, as shown in Figure 3-5, w

INSTALLATION3-6To reset the MicroMMAC-T:Insert a small pointed-tip object (e.g., ballpoint pen) into the recessed reset button hole, press the button

INSTALLATION3-7Figure 3-7. The Ring Speed Switch3.7 SETTING THE NVRAM SWITCHFigure 3-8 shows the location of the NVRAM Reset Switch. It can be reach

INSTALLATION3-82. Press the MicroMMAC-T’s Reset button.Once the module is reset, use the factory-default settings or enter new parameters. The MicroMM

INSTALLATION3-9RJ45 Plug to RJ45 Plug(at TCU) (at device port)Pin 3 (Receive -) . . . . . . . . . to. . . . Pin 3 (Transmit -)Pin 4 (Tr

INSTALLATION3-10Figure 3-10. UTP Configuration ExamplePunchdownBlockWIRING CLOSETOFFICEToken RingStationToken RingNetwork Interface CardWallJackUTPLob

INSTALLATION3-11Figure 3-11. STP Configuration ExampleTo attach a lobe segment to a MicroMMAC-T network port:1. Insert the RJ45 connector from each tw

INSTALLATION3-122. The associated Port Status LED lights green when the station boots up. If the LED doesn’t light, perform the following steps:a. Che

INSTALLATION3-133.9.1 Setting Phantom and RI/RO SwitchesThe Phantom Switch (shown in Figure 3-13) enables the port to “autowrap” if a trunk cable fai

INSTALLATION3-14Figure 3-13. The Phantom and RI/RO Switches3.9.2 TPIM InstallationTo install a TPIM, perform the following steps:CAUTION: Observe al

NOTICEvi 2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, WIT

INSTALLATION3-15Figure 3-14. Installing a TPIM3.9.3 Connecting STP SegmentsUse TPIM-T1 to connect STP segments. Before connecting a segment to the T

INSTALLATION3-16Figure 3-15. The TPIM-T12. Check that the LNK LED on the TPIM lights green. If the LED is red or is not lighted, perform each of the

INSTALLATION3-17Figure 3-16. The TPIM-T2/-T42. Check that the LNK LED on the TPIM lights green. If the LED lights red or is not lit, perform each of

INSTALLATION3-18• The physical communication link consists of two strands of fiber optic cabling. The Transmit strand (TX) at one end connects to the R

INSTALLATION3-19a. Check that the device at the other end of the link has power.b. Verify that the fiber strands are properly “crossed-over” between th

4-1CHAPTER 4LOCAL MANAGEMENTThis chapter explains how to set up a management terminal and a modem to access MicroMMAC-T’s Local Management (LM). It a

LOCAL MANAGEMENT4-2Cabletron supplies an RJ45 Cable Kit with the MicroMMAC-T. This kit includes a UTP console cable with RJ45 connectors on each end.

LOCAL MANAGEMENT4-3When you have finished attaching and setting up the terminal, you can access Local Management.4.1.3 Modem Cable Configuration and Se

LOCAL MANAGEMENT4-4MicroMMAC-T’s COM 2 port. Figure 4-2 shows the pinout for a cable with an RJ45 connector at the MicroMMAC-T end of the cable.Figure

LOCAL MANAGEMENT4-5Figure 4-3. MicroMMAC-T Local Management Screen2. Enter the Password (the factory default password is the Return key) and then pre

vii CONTENTS CHAPTER 1 INTRODUCTION 1.1 CONTENTS OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . .1-11.2 MicroMMAC-T OVERVIEW . . . . . .

LOCAL MANAGEMENT4-64.2.2 Accessing Local Management from a Modem1. Turn on the modem. The modem must be set for Auto Answer and Data Carrier Detect m

LOCAL MANAGEMENT4-7Figure 4-4. Local Management MENU Screens HierarchyNOTE: Local Management automatically disconnects after 15 minutes of keyboard i

LOCAL MANAGEMENT4-8(or other procedures where they are described) when working with LM screens:1. Use the Tab key or arrow keys to highlight the param

LOCAL MANAGEMENT4-94.3.2 The SYSTEM LEVEL ScreenThe SYSTEM LEVEL Screen (Figure 4-5) displays and lets you set the following parameters:• IP Address,

LOCAL MANAGEMENT4-101. Highlight the System Date field.2. Type the date into the field in a MM/DD/YY format and then press the Return key.3. If the form

LOCAL MANAGEMENT4-113. Press the Return key. The new value appears in the IP Address field. 4. If the IP Address is correct, highlight the SAVE command

LOCAL MANAGEMENT4-12The “SAVED” message appears on the screen indicating that your changes have been saved to memory.The MicroMMAC-T will then do a so

LOCAL MANAGEMENT4-13ABRP locates the problem and corrects it, the MicroMMAC-T generates traps to provide the network’s designated remote management st

LOCAL MANAGEMENT4-142. Toggle between ENABLED and DISABLED to make your selection.3. Highlight the SAVE command and then press the Return key.The “SAV

LOCAL MANAGEMENT4-15serve two purposes: they act as passwords to Local Management (LM) and control SNMP management access to the MicroMMAC-T. You cont

CONTENTS viii 3.5 RESETTING THE MICROMMAC-T. . . . . . . . . . . . . . . . . . 3-53.6 SETTING THE RING SPEED . . . . . . . . . . . . . . . . . . . .

LOCAL MANAGEMENT4-16Community Name This field displays designated user names. Access PolicyThis field displays the access privileges accorded to each co

LOCAL MANAGEMENT4-17Figure 4-7. SNMP TRAPS ScreenThe following sections discuss the fields on the SNMP TRAPS Screen and provide instructions for using

LOCAL MANAGEMENT4-183. Press the Return key. If the format is invalid, the “INVALID IP FORMAT” message appears. Re-type the Trap Destination IP addres

LOCAL MANAGEMENT4-19Figure 4-8. RING SECURITY ScreenOnly stations on the ring’s allowed list can enter the ring. The MicroMMAC-T retains this allowed

LOCAL MANAGEMENT4-20In Alarm/Remove mode, the MicroMMAC-T sends a “Remove MAC Frame Command” to new stations attempting to enter the ring. A trap sent

LOCAL MANAGEMENT4-21it sends a trap to the NMS informing it that the station could not be removed. The station must then be physically removed from th

LOCAL MANAGEMENT4-222. Highlight the SAVE/EXECUTE command and then press the Return key.Viewing the Revised Allowed List 1. Highlight the RETURN comma

LOCAL MANAGEMENT4-234.3.6 The DEVICE STATISTICS ScreenThe DEVICE STATISTICS screen (Figure 4-9) displays ring information, isolating errors, and non-

LOCAL MANAGEMENT4-24• TOTAL: This mode automatically displays statistics describing network performance since the last power-up.Selecting the Device S

LOCAL MANAGEMENT4-25KBytes ReceivedThis field displays the sum in kilobytes of frames received by the MicroMMAC-T.Errors ReceivedThis field displays the

CONTENTS ix 5.2.4 Saved System Messages. . . . . . . . . . . . . . . . . . . . 5-65.3 VIEWING POWER UP DIAGNOSTIC TESTS . . . . . . . . . .5-7

LOCAL MANAGEMENT4-26occurs when stations enter or leave the ring with the absence of phantom current.This error can also indicate a problem with the r

LOCAL MANAGEMENT4-27• Closed -- Indicates that the management station has closed the adapter•Normal -- Indicates the ring is running with no problems,

LOCAL MANAGEMENT4-28Frame Copied ErrorsThis field displays the total number of Frame Copied Errors. These errors occur when a station finds a frame with

LOCAL MANAGEMENT4-29• OPERATIONAL (Figure 4-10) -- Lets you monitor the operational status of the Token Ring network• ADMINISTRATIVE (Figure 4-11) --

LOCAL MANAGEMENT4-30VFNB screen configurations for Bypassed modules are described as follows:• Bypassed (|--B--|): The MicroMMAC-T is in the bypass mod

LOCAL MANAGEMENT4-312. Toggle to a screen mode selection, or press a for ADMINISTRATIVE, o for Operational, or r for RING OUT ENABLE, and then press t

LOCAL MANAGEMENT4-32• ENB (Enabled): The port is enabled and allows an attached station to enter the ring.• BYP (Bypassed): The port is disabled and t

LOCAL MANAGEMENT4-33Using the ADMINISTRATIVE Mode Screen In addition to displaying the operational status of ring ports, the ADMINISTRATIVE mode scree

LOCAL MANAGEMENT4-342. Toggle between ON and OFF, make your selection, and then press the Return key.Enabled ports provide access for other stations i

LOCAL MANAGEMENT4-35Figure 4-12. CHASSIS STATUS VIEW (RING OUT ENABLE) ScreenTo switch to and from STN and RO:1. Highlight the port-status field showi

1-1 CHAPTER 1INTRODUCTION Welcome to the Cabletron Systems MicroMMAC-22T/-24T/-42T/-44T Stackable Token Ring Intelligent Hub User’s Guide . This ma

LOCAL MANAGEMENT4-36Figure 4-13. COMPONENT STATUS VIEW Screen4.3.9 The MIB NAVIGATOR ScreenThe MIB NAVIGATOR screen (Figure 4-14) provides the MIB N

LOCAL MANAGEMENT4-37Figure 4-14. MIB Navigator ScreenThe following sections define MIB commands and describe how to get help on using them.To access a

LOCAL MANAGEMENT4-38Navigational commandsNavigational commands allow you to access and manage MIB objects for the device. MIB Commands are described a

LOCAL MANAGEMENT4-39nextThis command shows the next leaf in a path.pwdThis command displays the full path name of the directory in which you are worki

LOCAL MANAGEMENT4-40pingThis command let you generate an outbound ping request.snmp branchThis command lets you query another SNMP device.snmpgetThis

LOCAL MANAGEMENT4-41Figure 4-15. The FLASH DOWNLOAD ScreenThe following sections discuss the fields on the FLASH DOWNLOAD screen and provide instructi

LOCAL MANAGEMENT4-42The Reboot after Download field appears by default when the RUNTIME method is used. If YES is selected, the MicroMMAC-T will automa

5-1CHAPTER 5TROUBLESHOOTINGThis chapter describes and explains how to use LANVIEW LEDs and the Liquid Crystal Display (LCD) to troubleshoot physical

TROUBLESHOOTING5-25.2 USING THE LCD DISPLAYThe MicroMMAC-T is equipped with an LCD and a LCD display button as shown in Figure 5-1. Figure 5-1. LCD

TROUBLESHOOTING5-35.2.1 Static System MessagesStatic System messages (Table 5-2) display MicroMMAC-T configuration information. To view them, press an