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Cabletron Systems TRMM User Manual

Local management
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TRMM/TRMMIM LOCAL MANAGEMENT
USER'S GUIDE

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  • Page 1 TRMM/TRMMIM LOCAL MANAGEMENT USER’S GUIDE...
  • Page 2 Cabletron Systems Inc., P.O. Box 5005, Rochester, NH 03866-5005 All Rights Reserved Printed in the United States of America Order Number: 9030293-02 March 1996 Token Ring/LM, ETWMIM, SNACMIN-12, TRMM, TRMMIM, TRBMIM, TRMIM-12, TRMIM-10R, TRMIM-22, TRMIM-20R, TRMIM-22A, TRMIM-24A, TRRMIM-A, TRRMIM-2A, TRRMIM-4A,TRMIM-42A, TRMIM-44A, LANVIEW, Remote LANVIEW/Windows, SPECTRUM, and MMAC are trademarks of Cabletron Systems Inc.
  • Page 3 NOTICE CABLETRON SOFTWARE PROGRAM LICENSE LICENSE. You have the right to use only the one (1) copy of the Program provided in this package subject to the terms and conditions of this License Agreement. You may not copy, reproduce or transmit any part of the Program except as permitted by the Copyright Act of the United States or as authorized in writing by Cabletron.

  • Page 4: United States Government Restricted Rights

    NOTICE LIMITATION OF IMPLIED WARRANTEES IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. 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 5: Table Of Contents

    CHAPTER 1 INTRODUCTION USING THIS MANUAL ......1-1 GETTING HELP....... . . 1-2 TOKEN RING MANAGEMENT MODULES .
  • Page 6 CONTENTS 4.2.1 SNMP COMMUNITY NAMES Screen Fields..4-10 4.2.2 Editing the Community Name Field ... 4-11 4.2.3 Exiting the SNMP Community Names Screen. . . 4-12 THE SNMP TRAPS SCREEN ..... 4-12 4.3.1 SNMP TRAPS Screen Fields.
  • Page 7 CHAPTER 7 THE SNMP TOOLS SCREEN SNMP TOOLS SCREEN FIELDS ....7-1 GETTING AND SETTING VARIABLES....7-4 SCROLLING THROUGH MIB VARIABLES.

  • Page 8: Chapter 1 Introduction

    Welcome to the TRMM/TRMMIM Local Management User’s Guide. This manual serves as a simple reference guide for using TRMM/TRMMIM Local Management (LM) to configure and monitor the token ring network. This manual reflects Release Version 3.00.00 of the TRMM/TRMMIM firmware image.

  • Page 9: Getting Help

    1.2 GETTING HELP If you need additional support related to Token Ring/LM for the TRMM/TRMMIM, or if you have any questions, comments, or suggestions regarding this manual, contact Cabletron Systems’ Technical Support. Before calling, please have the following information ready: •...
  • Page 10 The TRMM resides in the management (first) slot of the MMAC chassis. It is designed to manage a full chassis of token ring interface modules. The TRMMIM also provides the same management functions as the TRMM to an additional ring from any mid-chassis slot. Both modules can...

  • Page 11: Related Manuals

    Cabletron Systems’ Multi Media Access Center Overview and Set Up Guide. Cabletron Systems’ TRMM/TRMMIM Token Ring Management Module Installation Guide. 1.5 RECOMMENDED READING We recommend the following publications if you need more information to understand or implement a token ring network.

  • Page 12: Chapter 2 Accessing Local Management

    LM sessions. The TRMM/TRMMIM also supports single in-band Telnet sessions with LM. Using the TRMM/TRMMIM IP address, Telnet to the module to establish the connection. NOTE: Modem setup and attachment procedures for accessing LM are fully described in the “TRMM/TRMMIM Token Ring Management...

  • Page 13: Vt200 Or Vt300 Series Terminal Setup

    ACCESSING LOCAL MANAGEMENT 2.1.1 VT200 or VT300 Series Terminal Setup If you have a VT200™ or VT300™ series terminal, press F3 to access the Setup Directory. Table 2-1 lists the setup requirements for the management terminal. Table 2-1. Terminal Setup Requirements Menu Display Setup: General Setup:...

  • Page 14: Configuring The Terminal Cable

    Local management can be accessed by direct connection to a management terminal by using the RS232 cable and one of the three conversion connectors shipped with the TRMM/TRMMIM. Two converters are labeled according to the type of terminal (VT Series and PC) they can be used with.

  • Page 15: Connecting The Console Cable To A Terminal

    PCs, as applicable) to the RS232 COMM port on the terminal. 2.3 ACCESSING LOCAL MANAGEMENT The TRMM/TRMMIM supports only one LM session (from either a management terminal, modem, or Telnet) at a time. See Section 2.3.1 for information about LM access restrictions.

  • Page 16: More Information

    When you enter the correct password, the MAIN MENU appears as shown in Figure 2-3, indicating that Local Management is ready for operation. ACCESSING LOCAL MANAGEMENT TRMM LOCAL MANAGEMENT Cabletron Systems, Incorporated P.O.Box 5005 Rochester, NH 03867-5005...

  • Page 17: Lm Access Restrictions

    Figure 2-3. Local Management MAIN MENU Screen NOTE: To view POWER UP DIAGNOSTIC tests, power on the TRMM/TRMMIM after first establishing the terminal connection. 2.3.1 LM Access Restrictions The module can support only one LM session at a time, regardless of the methods being used to access it.
  • Page 18 Disconnecting other user. Please wait ... Figure 2-4. Option to Disconnect Current User Screen However, the first user disconnected since the TRMM/TRMMIM has been reset will receive an invitation to reconnect only once. If the first user who was disconnected bumps the other user out to reconnect and then gets bumped out again, the first user will have to first re-attach the management terminal to the module to become eligible to reconnect to LM.

  • Page 19: Chapter 3 Using Local Management

    USING LOCAL MANAGEMENT This chapter describes how to work with LM screen fields. It also discusses the function of each available selection from the MAIN MENU Screen. 3.1 WORKING WITH LM SCREEN FIELDS LM screens contain the following types of fields: •...

  • Page 20: The Main Menu Screen

    • SNMP COMMUNITY NAMES – This screen allows you to specify the SNMP Community Names which will be granted access to the TRMM/TRMMIM, as well as the level accorded each name (Read Only, Read-Write, Super-user). • SNMP TRAPS – As an SNMP device, the TRMM/TRMMIM can authenticate an SNMP request and issue traps correspondingly.
  • Page 21 This option accesses another menu screen – the DEVICE STATUS menu screen. There are two screens available from this menu that allow you to view the TRMM/TRMMIM’s status. These include: • CHASSIS STATUS VIEW - This selection lets you view the configuration, ring speed, and type of each token ring board currently inserted in the MMAC;...

  • Page 22: Chapter 4 The Device Setup Menu

    System Date and Time, SNMP Agent IP address and Subnet Mask, Beacon recovery parameters, and a Locally Administered FNB MAC Address). • The SNMP Community Names used to access the TRMM/TRMMIM through local or remote management. • The IP addresses of network management workstations to which the TRMM/TRMMIM will issue traps.

  • Page 23: The System Level Screen

    THE DEVICE SETUP MENU TRMM LOCAL MANAGEMENT Figure 4-1. The DEVICE SETUP Menu 4.1 THE SYSTEM LEVEL SCREEN The SYSTEM LEVEL screen, shown in Figure 4-2, displays the TRMM/TRMMIM’s MAC address and allows you to set the following parameters: • IP Address •...

  • Page 24: System Date

    Locally Administered: SAVE Figure 4-2. The SYSTEM LEVEL Screen 4.1.1 System Date This field displays the date currently set at the TRMM/TRMMIM. To edit this field: 1. Highlight the field. 2. Type in the date using the mm/dd/yy format. 3. Press Enter. If the date is valid, the “OK” message appears.

  • Page 25: System Time

    THE DEVICE SETUP MENU 4.1.2 System Time This field displays the time currently set at the TRMM/TRMMIM. To edit this field: 1. Highlight the field. 2. Type in the time using the hh:mm:ss (24-hour) format. 3. Press Enter. If the time is valid, the “OK” message appears.

  • Page 26: Subnet Mask

    (as specified by the device’s IP routing table). You will need to set the subnet mask field if your TRMM/TRMMIM is on a subnetwork and will be issuing SNMP traps. The subnet mask determines which side of a router the receiving workstations are on.

  • Page 27: Enable Beacon Recovery

    While the two ports are undergoing the standard beaconing process, the TRMM/TRMMIM checks to see if a port between the two failing ports is physically linked to the MMAC without being mapped as part of a ring network (e.g., someone inserted a device into the ring that was non-token...

  • Page 28: Number Of Retries

    TRMM/TRMMIM begins a second process based on a physical search of the hub. During the second step, the TRMM/TRMMIM individually bypasses each module to isolate the one with the fault (as evidenced by ring recovery on bypass).

  • Page 29: Retry Interval

    4.1.8 FNB MAC Address This field displays both the Physical and Locally Administered Media Access Control addresses, which identify the TRMM/TRMMIM at the physical layer of a Token Ring network. Physical This read-only field reflects a “globally administered address” – that is, the 6-byte address hard-coded into the TRMM/TRMMIM.

  • Page 30: The Snmp Community Names Screen

    Management and they serve as a security means to control SNMP management access to the TRMM/TRMMIM. You control access to the TRMM/TRMMIM by establishing up to three levels of security authorization (Read Only, Read-Write, and Super-user). If you have Super-user access, you can change the existing passwords by changing the community names.

  • Page 31: Snmp Community Names Screen Fields

    The following sections briefly describe each field on the SNMP COMMUNITY NAMES screen and instruct you on how to use them. 4.2.1 SNMP COMMUNITY NAMES Screen Fields Component Name This field displays the TRMM/TRMMIM Chassis Manager and corresponding community names. 4-10 Flash Image Version:...

  • Page 32: Editing The Community Name Field

    Community Name This field displays the user-defined name through which a user can open the local management interface with the TRMM/TRMMIM, and the inherent level of access associated with that password. Access Policy This field indicates the access status accorded each community name. Any community name declared here acts as a password to Local Management.

  • Page 33: Exiting The Snmp Community Names Screen

    4.3 THE SNMP TRAPS SCREEN The SNMP TRAPS Screen allows you to designate which remote management stations will receive trap alarms from the TRMM/TRMMIM. To access the SNMP TRAPS screen from the DEVICE SETUP menu screen, highlight SNMP TRAPS option and press Enter. The SNMP TRAPS screen shown in Figure 4-4 appears.

  • Page 34: Snmp Traps Screen Fields

    4. Type in the community name of the device and press Enter. 5. Highlight the Enable Traps field. 6. Type Y (yes) to send alarms from the TRMM/TRMMIM to the workstation or N (no) to prevent alarms from being sent.

  • Page 35: Exiting The Snmp Traps Screen

    TRMM/TRMMIM stores the MAC address of each station on the token ring network in a secure database or “allowed list.” Only stations on the allowed list can enter the ring. The TRMM/TRMMIM can store up to 250 station MAC addresses on the allowed list. The TRMM/TRMMIM retains the allowed list in its battery-backed Non-Volatile Random Access Memory (NVRAM).

  • Page 36: Ring Security Screen Definitions

    To exit the RING SECURITY screen, highlight the RETURN menu command and press Enter. 4.4.1 Ring Security Screen Definitions The following section provides a brief explanation of each field and command on the RING SECURITY screen. TRMM LOCAL MANAGEMENT Flash Image Version: 03.00.05 RING SECURITY STATION ADDRESS...
  • Page 37 If you temporarily disable ring security to allow new users to enter the ring, you can use the Alarm Only mode to re-enable ring security. When you select the Alarm Only mode, the TRMM/TRMMIM stores the MAC address of each station on the ring in the allowed list. This saves you from entering MAC addresses one at time using the Stn Edit command.

  • Page 38: Working With The Ring Security Screen

    TRMM/TRMMIM Installation and User’s Guide before you initiate ring security. You must also set up the TRMM/TRMMIM’s SNMP TRAPS screen to designate which Network Management Stations receive trap/alarms (refer to the prior section describing the SNMP TRAP screen). This ensures that trap/alarms generated by ring security arrive at the appropriate destination.
  • Page 39 THE DEVICE SETUP MENU Adding Stations to the Station Address Allowed List To add stations one at a time to the Station Address allowed list: 1. Highlight the Stn Edit field. 2. Press Enter to clear the field. 3. Type the MAC address of the station you want to add in the 00-00-00-00-00-00 format and press Enter.

  • Page 40: The Boot Gateway Screen

    2. Press Enter to toggle selections (Disabled, Alarm Only, Remove/Alarm). Select the desired option. 3. Highlight the SAVE/EXECUTE command and press Enter. The TRMM/TRMMIM enables the selected mode of ring security. 4.5 THE BOOT GATEWAY SCREEN The TRMM/TRMMIM supports firmware downloads across routers with Proxy-ARP disabled.
  • Page 41 THE DEVICE SETUP MENU entered. If the entry does not have three separator dots, it will be rejected. 3. Press Enter. The new IP address is displayed. 4. Highlight the SAVE command and press Enter. The “Saved” message will appear. The changes are saved to memory and will take effect immediately.

  • Page 42: Chapter 5 The Device Status Menu

    Enable, disable, or bypass Flexible Network Bus (FNB) Multiplexer (MUX) connections. The COMPONENT STATUS VIEW screen provides a read-only screen that shows all the TRMM/TRMMIM’s current components. To access the DEVICE STATUS screen from the MAIN MENU screen, highlight the DEVICE STATUS option and press Enter. The DEVICE STATUS menu screen shown in Figure 5-1 appears.

  • Page 43: The Chassis Status View Screen

    • RING OUT ENABLE (Figure 5-4) – for changing Station ports to Ring Out (RO) ports of modules managed by a TRMM or a TRMMIM To access the CHASSIS STATUS VIEW screen from the DEVICE STATUS menu screen, highlight the CHASSIS STATUS VIEW option and press Enter.
  • Page 44 MMAC and managing separate rings within TRMM LOCAL MANAGEMENT TR_24A TR_10R |---| |---> NEXT TRMMIM LM VIEW TRMMIM LOCAL MANAGEMENT TR_24A TR_10R |-B-| |---> 16 Mb/s 16 Mb/s MGMT MGMT NEXT Figure 5-2. CHASSIS STATUS VIEW Screens (OPERATIONAL As Figure 5-2 illustrates, a management module’s LM control extends...

  • Page 45: Describing Static Screen Fields

    To select a screen mode: 1. Highlight the Screen Mode Status field. 2. Toggle to the desired selection and press Enter. The selected screen mode appears. Figure 5-3 shows an example ADMINISTRATIVE mode screen. TRMM LOCAL MANAGEMENT TR_24A TR_10R |---| |--->...
  • Page 46 TR_10R This field identifies the module type installed in each MMAC slot. Table 5-1 provides a list of some modules typically installed in an MMAC supporting a Token Ring network. Abrrev. Module Type TRMM TRMM TRMMIM TRMMIM TR_12 TRMIM-12 TR_10R...

  • Page 47: Setting The Fnb/Bypass Mux Configuration

    Ring Speed This field shows the ring speed at which the module is currently operating (4 or 16 Mb/s). See the TRMM/TRMMIM Token Ring Management Modules Installation Guide for instructions on how to physically set either module’s ring speed switch.

  • Page 48: Setting Port Status Fields

    However, neighboring MIMs will still be attached via the FNB backplane. The TRMM and the TRMMIM cannot be bypassed. • Bypassed Right (<-B -|) - that is, the module is bypassed by the module to its right, but connected to the module to its left.
  • Page 49 THE DEVICE STATUS MENU 3. Press Enter to execute the change. The Chassis View ADMINISTRATIVE mode screen shows ports as either ON (administratively enabled) or OFF (administratively disabled). The OPERATIONAL mode screen shows Station (Stn) ports as either: • ENB (Enable) – The port is enabled, but the attached station is not inserted onto the ring.

  • Page 50: Enabling All Ports

    TRMM LOCAL MANAGEMENT TR_24A TR_10R |---| |---> PREVIOUS Figure 5-4. RING OUT ENABLE Mode 5.1.5 Enabling All Ports NEXT ENABLE ALL PORTS Use the ENABLE ALL PORTS field from the ADMINISTRATIVE screen mode to globally enable all ports under management of the TRMM/TRMMIM.

  • Page 51: Controlling The Screen View

    (MGMT) or Automatic Mode (AUTO). MGMT indicates that hardware defaults can currently be overridden by local or remote management. AUTO indicates that the module will operate according to hardware defaults. The TRMM/TRMMIM will always operate in the MGMT Mode. To select an operational mode: 1.

  • Page 52: Setting The Screen Refresh Interval

    2. Toggle to an interval number and press Enter. 5.2 THE COMPONENT STATUS VIEW SCREEN The Component Status View screen (Figure 5-5) is a read-only screen that displays TRMM/TRMMIM’s operating system and associated components. Components are software applications or resources/functions which are registered in the TRMM/TRMMIM.
  • Page 53 RMON – Indicates that RMON (Remote Network Monitoring) is present. • TRMM (or TRMMIM) Telnet – The entity for Telnet. • Network (1,2, ..., n) – Indicates the number of LANs ( or individual rings) currently configured in the MMAC.

  • Page 54: Describing Device Statistics Fields

    THE DEVICE STATISTICS SCREEN The DEVICE STATISTICS screen, shown in Figure 6-1, displays ring performance statistics and TRMM/TRMMIM configuration information. To access the DEVICE STATISTICS screen from the MAIN MENU screen, highlight the DEVICE STATISTICS option and press Enter. To exit the DEVICE STATISTICS screen, highlight RETURN and press Enter.

  • Page 55: Counter Mode Field

    TRMM/TRMMIM was last powered on or reset. KBytes Received This field displays the kilobyte sum of all frames detected on the TRMM/TRMMIM since it was last powered up or reset. Total Errors Received This field displays the total Isolating and Non-Isolating Errors detected by the TRMM/TRMMIM.

  • Page 56: Ring Information Fields

    Ring Status This field lists the current status of the ring being monitored by the TRMM/TRMMIM. Possible status conditions are Unknown, Closed, Normal, Purge, Contention, Beaconing, or Lobe Fail. • Unknown – indicates the state of the ring cannot be detected by the management station.

  • Page 57: Isolating Errors Fields

    Line Errors This field displays the total line errors detected by the TRMM/TRMMIM. These are recorded when a receiving station detects a data corruption in a packet that was initially transmitted as a good packet. Line errors can be caused by electronic noise on the ring or by other cable problems.
  • Page 58 AC Errors This field displays the total Address Recognized Indicator/Frame Copied Indicator errors. A faulty node cannot set the address recognized indicator and/or frame copied indicator bits in the frame which it has copied. This leaves the downstream node (that reports the error) with an incorrect NAUN address.

  • Page 59: Non-Isolating Errors Fields

    THE DEVICE STATISTICS SCREEN 6.1.6 Non-Isolating Errors Fields Non-isolating errors are “soft” error conditions that could have been caused by any station on the ring, thus their fault domain cannot be detected. Lost Frame Errors These errors occur when a transmitting station’s TRR (Timer, Return to Repeat) timer expires before the end of its transmitted frame returns.
  • Page 60 THE DEVICE STATISTICS SCREEN Rcvr Congestion Errors This field displays the total number of Rcvr Congestion Errors. This indicates a station is receiving/repeating a frame and recognizes a frame addressed to it, but has no buffer space available for the frame. This may indicate a poorly performing station, since it is receiving frames faster than its adapter can copy information from the buffer.

  • Page 61: Selecting A Counter Mode

    THE DEVICE STATISTICS SCREEN SELECTING A COUNTER MODE The Device Statistics screen lets you view statistics gathered from any time frame you choose to specify. This section explains how to pre-determine the amount of statistical data you want displayed. You can select from either of the following three counter modes: •...
  • Page 62 THE DEVICE STATISTICS SCREEN The Clear field appears near the bottom of the screen. ACCUMULATE TOTAL REFRESH 3sec CLEAR RETURN 2. Highlight the Clear field and press Enter. The Clear Date and Clear Time fields change to reflect the beginning of the time frame from which you want to view network statistics the next time you select the ACCUMULATE mode.

  • Page 63: Chapter 7 The Snmp Tools Screen

    This chapter describes how to use the SNMP TOOLS screen to access Management Information Bases (MIBs) supported by the TRMM/TRMMIM. Your level of security access to the LM component of the TRMM/TRMMIM may prevent you from accessing some portions of the device’s MIBs.
  • Page 64 Figure 7-1. SNMP TOOLS Screen OID PREPEND This field specifies a numerical prefix (OID string) for the MIB variables of interest supported by the TRMM/TRMMIM. ‘1.3.6.1’ is the default prefix (iso provide a prefix for lower levels of the MIB (SMI) tree.
  • Page 65 Specified OID – Provides the numerical identifier (OID) of the variable Size – Displays the number of bytes needed to store the variable in the TRMM/TRMMIM’s flash EEPROMs Data Type – Specifies the variable’s type (e.g., int = integer) Data Value – Displays the value associated with that variable as read from...

  • Page 66: Getting And Setting Variables

    ASCII_LABEL: N/A DATA TYPE: 0 DATA LENGTH: 32 DECODED DATA: CABLETRON TRMM Revision 3.00.5 Figure 7-2. Sample Output from a GET, GETNEXT, or STEP Operation To get the next variable: 1. Highlight GETNEXT and press Enter (or press F8). “<GETNEXT>...
  • Page 67 2. Enter the OID and press Enter. If no instance of that variable exists, you will be notified to that effect; otherwise information displays for that variable’s data type, length, and value. Note that you can use the OID prepend or the F9 RECALL command key as described above.

  • Page 68: Scrolling Through Mib Variables

    2. Enter the number of OID cycles that you want to scroll through after “ENTER CYCLE COUNT:” and press Enter. SIZE TYP DATA (HIT ANY KEY TO EXIT) STR TRMM STR TRMM STR TRMM STR BOARD 2 STR BOARD 3...

  • Page 69: Initiating A Firmware Download

    3. Enter how many seconds delay that you want between GETNEXT requests after “ENTER CYCLE DELAY (secs):”, and press Enter. 4. Highlight GETNEXT and press Enter. Use the down arrow key to scroll through the Get Next cycles requested. To step through: 1.
  • Page 70 - 1.3.6.1.4.1.52.4.1.5.8.1.3.0 Cabletron’s Download Initiate Cold Boot OID is an integer value. When set to 1, it forces the TRMM to reset and reboot. This OID must be set last, because the device will reset immediately after processing this request.

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