Page 1 UILDER ANAGEMENT ODULE (3C18500) UIDE Part No. DUA1850-0AAA05 Published January 1996...
Page 2 3Com Ireland. 3Com Ireland reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Ireland to provide notification of such revision or change.
Page 3: Table Of Contents
Methods of Managing the MSH 2-8 Access Levels 2-8 Default Users 2-9 Management over the Network 2-10 Using 3Com Network Managers 2-10 Using alternative SNMP Network Managers 2-10 The MSH SNMP Management Information Base (MIB) 2-11 Using the VT100 Management Interface 2-11...
Page 4 NSTALLATION Safety Information 3-2 Installation 3-3 Overview 3-3 Unpacking 3-4 Checking the Links 3-4 Choosing a Slot 3-5 Installing the Module 3-6 Removing the Management Module 3-7 Connecting Management Equipment 3-7 Introduction 3-7 Managing through the Serial Port 3-8 Managing over the Network 3-9 Setting up SNMP Management Communications 3-10 Protocol Addresses 3-10 Setting up 3-11...
Page 5 VT100 I ANAGING HASSIS SING NTERFACE Introduction 5-2 Interface Control Keys 5-3 Screen Conventions 5-3 Special Characters 5-4 VT100 Management Menu Map 5-6 The Main Banner 5-7 The Logon Screen 5-8 The Main Menu 5-9 Service Selection Menu 5-10 Chassis Configuration 5-11 The User Access Level Menu 5-12 Creating Users 5-12 Deleting Users 5-14...
Page 6 THERNET ANAGEMENT NTRODUCTION TO THERNET ANAGEMENT About Repeaters and Modules 6-2 Resilient Links 6-2 Port Security 6-4 Smart Objects 6-5 End-Station Tracking (EST) 6-6 802.3 R ANAGING EPEATERS SING ISPLAY ANEL Introduction 7-3 Configuration 7-4 Statistics 7-5 802.3 R VT100 ANAGING EPEATERS SING...
Page 7 OKEN ANAGEMENT NTRODUCTION TO OKEN ANAGEMENT The Token Ring Environment 9-2 Introduction to Token Ring Architecture 9-2 Token Rings within the MSH Chassis 9-4 MSH RingBuilder 9-5 MAC and MAC Addresses 9-7 MSH Token Ring MAUs 9-8 MSH Token Ring AMAUs 9-8 MSH Management Module 9-9 Other Token Ring Components 9-9 Example Configurations 9-9...
Page 8 Ring Status 10-5 Ring Configuration 10-6 Ring Statistics 10-8 Ring Station Information 10-9 VT100 I ANAGING OKEN INGS SING THE NTERFACE Introduction 11-2 How to use this Chapter 11-2 Token Ring Only Networks 11-3 Selecting the Shared MAC 11-3 Token Ring Management 11-6 RingBuilder Setup 11-7 RingBuilder MAC Addresses 11-10 Ring Statistics 11-11...
Page 9 ‘Status In’ Connector A-4 THERNET TATISTICS ECHNICAL UPPORT On-line Technical Services C-1 3Com Bulletin Board Service C-1 World Wide Web Site C-2 ThreeComForum on CompuServe C-2 3ComFacts Automated Fax Service C-3 Support from Your Network Supplier C-3 Support from 3Com C-4...
Page 10 Counters and RMON Alarms D-8 Using Alarms D-11 Audit Log D-12 NDEX OF ANAGEMENT CTIONS AND NDEX LECTRO MAGNETIC OMPATABILITY TATEMENT FCC Statement 1 CSA Statement 1 European Statement 1 Information To The User 2 IMITED ARRANTY...
Page 11: Eneral Nformation
ENERAL NFORMATION...
Page 13: About This Guide
BOUT UIDE A Word about Safety Please pay careful attention to the Warning and Safety Information panels that appear throughout this guide. These panels give information that will protect YOU and the MSH equipment. Look for the Warning symbol, which always accompanies the appropriate message. WARNING: Installation and Removal of the MSH Management Module must only be carried out by Qualified Personnel.
Page 14 1: A HAPTER BOUT UIDE need to refer to other manuals for this information. See “Other Useful Publications” on page 1-4 below. The guide consists of six parts. Part I Tells you how install the management module and explains all the methods of managing the MSH hub.
Page 15: How To Use This Guide
Appendix A RS232 connectors. Re-loading and upgrading software into the MSH Management Module. Appendix B The many ways you can obtain more information and service from 3Com. Appendix C The Ethernet statistics you can read. Appendix D The use of RMON for advanced management.
Page 16: Other Useful Publications
Remote Management The MSH Management Module uses SNMP (Simple Network Management Protocol). This can be accessed by remote network management facilities. 3Com has a range of network management products called Transcend. For details of MSH management using the UNIX- or Windows-based...
Page 17: Special Messages
Special Messages Special Messages A special format indicates notes, cautions, and warnings. These messages are defined as follows. Notes call attention to important features or instructions. CAUTION: Cautions contain directions that you must follow to avoid immediate system damage or loss of data. WARNING: Warnings contain directions that you must follow for your personal safety.
Page 18: Conventions
1: A HAPTER BOUT UIDE Conventions The following table lists conventions that are used throughout this guide. “Enter” vs. “Type” When the word “enter” is used in this guide, it means type something, then press the Return or Enter key. Do not press the Return or Enter key when an instruction simply says “type.”...
Page 19 List of Abbreviations Main Link the normal operating link of a resilient pair Main Port the normal operating port of a resilient pair LinkBuilder Multi-Services Hub MAU (802.3) Media Access Unit for Ethernet MAU (802.5) Multistation Access Unit for Token Ring Need To Know NVRAM Non-Volatile Random Access Memory...
Page 20 1: A HAPTER BOUT UIDE DUA1850-0AAA05...
Page 21: Overview
VERVIEW This chapter tells you: The functions of the management module. The ways to manage the MSH chassis.
Page 22: Overview Of The Msh
2: O HAPTER VERVIEW Overview of the MSH The LinkBuilder Multi-Services Hub (MSH) can support multiple services simultaneously in a single chassis. These services include Ethernet, Token Ring and FDDI. You can choose from a range of modules designed for the chassis. Examples of these are listed below.
Page 23 MSH Management Module, we will release new versions of the management module code. If you receive a 3Com module with a disk, the disk will contain new software which can be downloaded to the management module or token ring RingBuilder. The disk will also contain the program required to perform the download from a personal computer.
Page 24: The Msh Backplane
2: O HAPTER VERVIEW The MSH Backplane To provide the multi-services capability, the MSH chassis has a complex backplane. This supports Ethernet, Token Ring, FDDI and other technologies. The backplane carries three individual Ethernets (Ethernets 1, 2 and 3), which are tracked to all module slots in the chassis. MSH modules are configured to connect to a particular Ethernet by hardware links on the module.
Page 25 Overview of the MSH Each service comprises one or more of the modules in the chassis. For example a chassis could contain three repeater modules. All three of these modules could be connected together to form one repeater service or could be used in isolation as three separate repeater services. Each repeater service is equivalent to a stand-alone repeater device.
Page 26: The Management Module
The Management Module The Management Module The diagram alongside shows a front view of the management module. At the top and bottom of the front are ejectors which hold the module in the chassis. There are three LEDs by the top ejector on the front of the MSH Management Module.
Page 27: Functions Of The Management Module
The Management Module Out-of-Band management. Contact your supplier for news about this feature. Functions of the Management Module The management module provides a view of the MSH chassis with regard to configuration and common areas of control. It also manages the Ethernet connections, Token Ring modules and some aspects of intelligent modules contained in the chassis.
Page 28: Methods Of Managing The Msh
2: O HAPTER VERVIEW Alarms can be set to notify the network manager when a particular parameter is at an unacceptable level. Alarms operate on the contents of a counter or set of counters. A manager can assign one of a set of actions to be taken automatically if an alarm is triggered.
Page 29: Default Users
The Management Module access for level 2 is the same as that of level 1, and that for level 4 equal to that of level 3. In the default settings the access levels provide the following access rights. Security Access Level 5 - Allows the user full read/write access to all elements of the MIB.
Page 30: Management Over The Network
MSH hub. This link may be indirect - via a bridge or router. Using 3Com Network Managers Transcend network management products have MSH management options. Each can access and manage the full set of features of the MSH hub.
Page 31: The Msh Snmp Management Information Base (Mib)
Management over the Network 2-11 hub in situations where the LAN is not providing a reliable service or the network manager does not have direct LAN connectivity. Using a Telnet application. The MSH SNMP Management Information Base (MIB) To manage the MSH hub with an alternative SNMP network manager you need to use the appropriate Management Information Base (MIB) file.
Page 32: Using The Msh Display Panel
2-12 2: O HAPTER VERVIEW terminal directly, or connect a modem to provide a telephone link for a remote terminal. Using the MSH Display Panel The MSH display panel provides functions for monitoring the MSH status from the MSH hub itself. However, you cannot use this panel to configure the MSH hub.
Page 33: Installation
NSTALLATION This chapter explains: How to install the MSH Management Module. How to access the management facility.
Page 34: Safety Information
3: I HAPTER NSTALLATION Safety Information CAUTION: Please read the following safety information before installing the MSH Management Module. WARNING: Installation and Removal of the 3C18500 MSH Management Module should be carried out by qualified personnel only. Read and follow the Safety Information you will find in the MSH Chassis User Guide (DUA1800-0AAA0X).
Page 35: Installation
Installation Installation WARNING: Installation and Removal of the 3C18500 MSH Management Module should be carried out by qualified personnel only. CAUTION: When setting up the hardware links on all modules for the MSH chassis, think carefully about the configuration you are selecting. In the unmanaged state, the chassis, and the networks connected through it, must contain NO loops.
Page 36: Unpacking
3: I HAPTER NSTALLATION Unpacking CAUTION: Observe Anti-Static Precautions! Remove the MSH Management Module from its packaging taking care not to touch any of the components or connectors on the module. The package should contain all the items listed below: The MSH Management Module.
Page 37: Choosing A Slot
Installation Figure 3-1 Schematic Layout Of The Management Module Choosing a Slot Usually you may insert the management module in any vacant slot. But if you use any ECS repeater modules in the MSH chassis, the management module must be in the highest-numbered slot in the chassis;...
Page 38: Installing The Module
3: I HAPTER NSTALLATION If two or more management modules are installed in the chassis, the management module in the highest-numbered slot operates and the others are disabled automatically. If you remove an active management module without powering down, a management module in a lower-numbered slot will not automatically take over management until the MSH chassis is reset.
Page 39: Removing The Management Module
Connecting Management Equipment When fully charged, the battery will retain data in the RAM for a minimum of four months without further charge. Removing the Management Module The procedure for removing the management module is the reverse of that for installing it. Operate the top and bottom sprung catches before pulling the flaps up.
Page 40 3: I HAPTER NSTALLATION Cables of the appropriate type should be available from your supplier. If you wish to make up your own cables, refer to the pin-outs given in Appendix A. If you are using a modem link, the maximum rate the autoconfiguration function will detect is 9600 baud.
Page 41: Managing Over The Network
Connecting Management Equipment Before you can proceed with management, from the Main Menu, choose the MSH Setup option. Configure the SLIP address and the SubNet Mask. If you are unsure about these, refer to “Protocol Addresses” on page 3-10. The SLIP address will not take effect until you have restarted the MSH chassis.
Page 42: Setting Up Snmp Management Communications
3-10 3: I HAPTER NSTALLATION Remote Management Facility If you use a remote management facility, such as an SNMP manager, you should refer to the manual(s) accompanying your remote management software for details of how to proceed. In some cases, you may have to configure the management module locally to redirect traps to the remote station.
Page 43: If You Change An Msh Module
If You Change an MSH Module 3-11 2 Set up the IP address and subnet mask of the MSH hub, using a VT100 terminal locally, through the management screens (described in Chapter 5) or BootP. Set the default router IP address (if necessary). There is no setting to be done if you are going to use IPX addressing.
Page 44: Connecting Devices For Automatic Monitoring
3-12 3: I HAPTER NSTALLATION If you change a module for one of a different kind (that is, a 12 port Secure ECS module for a 12 port Secure MSH module), the management module recognizes the difference and adopts the link settings.
Page 45 Connecting Devices for Automatic Monitoring 3-13 Figure 3-2 Status Input Port Pin-out The EXTOUTx pins are connected to the same isolated 0V connection on the management module. You do not have to use all four. Below is a diagram showing two examples of how you can use this facility.
Page 46: Installation Summary
3-14 3: I HAPTER NSTALLATION Installation Summary Installation comprises the following steps. 1 Unpack the MSH Management Module from the carton. 2 Check the position of the links is correct. See “Checking the Links” page 3-4. 3 Undo the two screws securing the locking bar and lift it away from the chassis.
Page 47: Chassis Management
HASSIS ANAGEMENT...
Page 49: Managing The Chassis Using The Display Panel
ANAGING HASSIS SING ISPLAY ANEL This chapter: Shows you how to use the display panel to get data about the chassis.
Page 50: Display Panel Led
4: M HAPTER ANAGING HASSIS SING ISPLAY ANEL Display Panel LED These characteristics only apply when a management module is present in the chassis. The LED on the MSH Display Panel above a slot will be OFF when there is no module in the slot. When there is a module in the slot, the color of the LED has the significance as shown below.
Page 51: Using The Display Panel
Using the Display Panel backplane that has a LinkSwitch connected to it, the LED above the slot containing the LinkSwitch will flash PINK/OFF. Access Level For the display panel, no access level is defined. The information available is equivalent to access level 1, Monitor. A full description of access levels and how to implement them is given “Access Levels”...
Page 52 4: M HAPTER ANAGING HASSIS SING ISPLAY ANEL Figure 4-2 Down To Next Level At each level, there are choices to be made. You move through the choices using the ‘Next’ and ‘Previous’ keys. The menus wrap around from either end, so that pressing ‘Next’ from the last position will take you to the first position and pressing ‘Previous’...
Page 53: Searching The Menus
Searching the Menus Searching the Menus The First Move When you begin your search by pressing the ‘Select’ key to go to the first level, the display changes to: Figure 4-5 First Move The ‘>’ indicates that you have a choice from a menu. You are presented with the choices (using the ‘Next’...
Page 54: Physical Configuration
4: M HAPTER ANAGING HASSIS SING ISPLAY ANEL Physical Configuration This topic refers to the MSH slots. The menu is expandable and only displays those slots which contain a module. Choose which slot you require using the ‘Next’ and / or ‘Previous’ keys to display your choice and press ‘Enter’...
Page 55: Chassis Services
Searching the Menus Chassis Services A set of choices is available representing the services present in the chassis. Again you move through them using ‘Next’ and ‘Previous’ . The LEDS above the slots making up the service will flash pink/green. Generic Service - leads to a further menu giving details of MAC address(es), IP address(es) and Protocols (that is, SNMP).
Page 56: Chassis Environment
4: M HAPTER ANAGING HASSIS SING ISPLAY ANEL Chassis Environment You should make this choice if you need to know details of the chassis itself. Next you will choose from the five areas of information available. Chassis Configuration - under this area you will find Chassis (type), Number of slots and Hardware Version.
Page 57 Searching the Menus Figure 4-8 Chassis Environment Menu DUA1850-0AAA05...
Page 58 4-10 4: M HAPTER ANAGING HASSIS SING ISPLAY ANEL DUA1850-0AAA05...
Page 59: Managing The Chassis Using The Vt100 Interface
ANAGING HASSIS VT100 I SING NTERFACE This chapter tells you how to use the VT100 interface to: Set up management communications. Obtain data about the chassis. Control the security of the chassis. Enter Ethernet or Token Ring management.
Page 60: Introduction
5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Introduction The chapter starts by explaining the way to control the VT100 interface with various key combinations. By way of overview of the screens, a complete menu map is given to enable you to follow the paths to the screen of your choice.
Page 61: Interface Control Keys
Interface Control Keys Interface Control Keys The user interface for the MSH management facility has been designed to be easy to use. We suggest you read through the following section when you use the facility for the first time. After that you should only need this chapter for reference.
Page 62: Special Characters
5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE [Space Bar] toggles through the options in a choice field, or selects and deselects an entry in the list box. An item selected in a List Box will be highlighted by an asterisk placed alongside the list box. [Return] if you have made one selection or more, actions your selections: if you have not made a selection, actions the highlighted element.
Page 63 Interface Control Keys Correcting Text Entry Use [Delete] on a VT100 terminal or [Backspace] on a PC. This moves the cursor one space to the left and deletes a character. To delete several characters press the key several times. With most systems, [Ctrl] + [H] will move the cursor back one space, but this is non-destructive and you must type in a replacement character even if this is a space.
Page 64: Vt100 Management Menu Map
5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE VT100 Management Menu Map The italic number at the bottom left of a screen box is the page number where you will find the description of that function. Figure 5-1 Management Menu DUA1850-0AAA05...
Page 65: The Main Banner
The Main Banner The Main Banner This screen is displayed to indicate that your entry of the ‘wake up’ procedure has been successful. If you are using a terminal, you will use the wake-up procedure. You do this by typing [Return][Return] Figure 5-2 Main Banner Screen There are two fields which you can customize using an SNMP manager - sysName and ascLocalManagementBanner.
Page 66: The Logon Screen
5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE The Logon Screen Enter your User Name and your Password in the fields provided. If you are beginning management from a fresh start (initialization or installation), the default user name and password will depend on the access level you require.
Page 67: The Main Menu
The Main Menu The Main Menu The Main Menu screen offers you the choice from a number of button fields, which determine your trail through the management facility. The meaning of each should be clear. If you have any difficulty, the map on page 5-6 will assist you in making your decision.
Page 68: Service Selection Menu
5-10 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Service Selection Menu The Service Selection Menu is a list box containing all the services within the chassis. Beside each is the number of the slot or backplane to which it is attached. Chassis Configuration displays the data of the chassis itself.
Page 69: Chassis Configuration
Chassis Configuration 5-11 Chassis Configuration The data of the Chassis Inventory is displayed on the Chassis Configuration screen, accessed through the Service Selection Menu. Details of the chassis and all the modules within the chassis environment are read automatically from the hardware. The data headings are:- Chassis Specification.
Page 70: The User Access Level Menu
5-12 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE The User Access Level Menu The User Access Level Menu provides a choice of up to four further screens (to set up who can do what to your network) or return to the main menu.
Page 71 The User Access Level Menu 5-13 CANCEL Figure 5-8 Create User Screen User Name Enter the name of the user. The name can be up to 10 characters in length. The User Name is case sensitive. Password Enter a password for this user. The password can be up to 10 characters long.
Page 72: Deleting Users
5-14 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE system administrator or somebody with the system administrator’s responsibilities. Community String The community string is automatically generated by the management facility. The default strings are given in “Default Users” on page 2-9. You can overwrite this text field if you need to enter a different community string.
Page 73 The User Access Level Menu 5-15 to the OK button and press [Return]. Remember you can use [Ctrl] + [B] to jump to the OK button. CANCEL Figure 5-10 Local Security Screen If you do not wish to make any changes after entering this screen, move the cursor to the CANCEL button and press [Return].
Page 74: Changing Passwords
5-16 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Changing Passwords Whatever your access level, you will be allowed to change your password. Select this option if you wish to edit your setup. You cannot edit another user’s setup. The screen is illustrated below. The options are very similar to the Create Users screen.
Page 75: Msh Setup
MSH Setup 5-17 MSH Setup You set up Management Communications from the Setup Menu screen illustrated below. SETUP TRAPS SERIAL PORT SHARED MAC CANCEL Figure 5-12 MSH Setup Screen MAC Address This field shows the MAC address of the management module.
Page 76 5-18 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Default Router Enter the IP address of the default router on your network. If you change the IP, reset the management module to effect the change. If you are going to use SLIP, complete the next three fields. SLIP Address SLIP (Serial Line IP) allows IP datagrams to run over serial lines instead of Ethernet.
Page 77 MSH Setup 5-19 received, the agent extracts the data and resets the unit to bring the new parameters into operation. When the IP parameters have been received, the Management Module will reset automatically. No management commands are possible while the module reboots and self-tests. The following four fields are repeated four times, once for each data link layer protocol that can be used by IPX.
Page 78: Setting The Trap Destination Address
5-20 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE SETUP TRAPS Press [Return] when the SETUP TRAPS button is highlighted to move to the Trap Destination screen. SERIAL PORT Press [Return] when the SETUP RS232 button is highlighted to move to the RS232 Setup screen. SHARED MACS Press [Return] when the SHARED MACS button is highlighted to move to the MAC Selection screen.
Page 79: Setting The Serial Port Parameters
MSH Setup 5-21 configured to use the same Community String otherwise it will ignore the traps. Throttle To prevent a remote network management station receiving lots of traps at once, you can configure the Chassis to transmit traps with a delay in between each successive trap transmission.
Page 80: Switching Macs
5-22 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE DCD Control ENABLE / DISABLE Check in the manual for your terminal or modem if you are not sure of the correct setting. DSR Control ENABLE / DISABLE If DSR Control is ENABLEd the management port will be logged out if DSR is de-asserted.
Page 81 MSH Setup 5-23 SWITCH CANCEL Figure 5-15 MAC Selection Screen Move the cursor to highlight the MAC you wish to use in the table of available MACs. Select it by pressing the space bar. Move the cursor to the SWITCH button and press [Return]. Select the new MAC with care.
Page 82: Msh Status
5-24 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE MSH Status The MSH Status screen displays the status parameters which will give you basic data about the health of the MSH hub and its networks. FAULT LOG Figure 5-16 MSH Status Screen System Up Time This field indicates how long the chassis has been running since the last reset.
Page 83: Fault Log
You will need to know the Software Version number if Technical Support are to help you. It is intended that the information carried by this screen is meaningful only to 3Com. Power Supply Problems At power up or if a module is inserted in the MSH, the management module automatically assesses the total power consumption requirements of modules in the chassis.
Page 84: Resetting The Msh Chassis
5-26 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE A power supply failure generates a network management event. The notification indicates which power supply has failed. Fan Failure Fan failure will generate a network management event. Resetting the MSH Chassis The following sections describe the functions that you can use to reset the whole MSH chassis.
Page 85: Resetting With Stored Settings
Resetting the MSH Chassis 5-27 ethernet statistics token ring statistics other RMON configuration Additionally, the IP configuration - IP address, subnet mask and IP router address - is stored in PDS such that it will survive initialization to factory defaults. This means that if you need to swap in a new management module, it will be given the same IP parameters as its predecessor.
Page 86: Resetting To Factory Settings
5-28 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Resetting to Factory Settings The Initialize Device function applies also to the management module. It performs a reset as described above. Also most of the parameters in PDS will be set back to its initial values. The IP configuration will remain unchanged.
Page 87: Upgrading The Management Module System
You must download the Smart Module software immediately afterwards to gain control of the Smart Modules. When 3Com issues a new version of the management module system you can obtain it on disk through your supplier and download it to the management module from a remote Network Manager.
Page 88 This field keeps you informed of the progress of the download procedure. IP address format and IPX address format are read-only reminder data. If you lose your software image totally, contact 3Com Technical Support. The management module also enables you to download updates to the software used by MSH Smart Modules.
Page 89: Remote Poll
Remote Poll 5-31 Remote Poll The Remote Poll screen allows you to see if a remote device is responding, by sending a single frame to the device. To display the screen, select the REMOTE POLL on the Main Menu screen. POLL CANCEL Figure 5-21 Remote Poll Screen...
Page 90: Module Management
5-32 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Module Management This section describes the management functions that apply to other modules in the MSH chassis, regardless of their type. For specific module functionality, refer to the manual supplied with that module. Configuring Modules Use the Module Configuration Menu to set up and view information about modules in the chassis.
Page 91: Module Configuration Screen
Module Management 5-33 Module Configuration Screen The Module Configuration screen lists the following data read from the selected module: slot number. module type. service type. module status. typical power requirement. hardware version. software version (if any). This is a read-only screen. This information is transferred to NVRAM. Thereafter when you exchange a module, the software checks the new module’s data against that in NVRAM.
Page 92: Switching Services On The Backplane
5-34 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Switching Services on the Backplane The management module can switch a service or partial service on to an applicable backplane bus. An example of a service might be a terminal server. A partial service might be a device such as a bridge port or repeater module.
Page 93 Intelligent Module Management 5-35 Bridge), two Ethernet addresses will appear. When you select MANAGE, a further screen will allow you to configure the IP address, SubNet Mask and Default Router address of the bridge. CANCEL Figure 5-25 Intelligent Module Screen The IP address of the Local Bridge Module must be of the same subnetwork as the MSH chassis, otherwise you may find you are not allowed to set the IP address.
Page 94: Switching Media For Management Over The Network
5-36 5: M VT100 I HAPTER ANAGING HASSIS SING NTERFACE Switching Media for Management over the Network The management module is connected to all other modules in the chassis by means of an out-of-band dedicated bus. The management module is by default connected to the Ethernet bus 1 on the backplane in band.
Page 95: Ethernet Management
THERNET ANAGEMENT...
Page 97: Introduction To Ethernet Management
NTRODUCTION TO THERNET ANAGEMENT This chapter: Describes Repeaters, Port Resilience, Port Security and other features.
Page 98: About Repeaters And Modules
6: I HAPTER NTRODUCTION TO THERNET ANAGEMENT About Repeaters and Modules The MSH system is designed to give you the control over how the chassis is configured. You may construct a number of services with different media and protocols. Three separate Ethernet backplane buses are provided.
Page 99 Resilient Links might be lost. If a spare link could pick up where the broken link left off, the network would appear to function normally to the outside observer. At worst, a few frames would be corrupted or lost. This is the concept of resilience as applied to ports. One port is on stand-by waiting to take over if the main port fails.
Page 100: Port Security
6: I HAPTER NTRODUCTION TO THERNET ANAGEMENT CAUTION: If you are installing the system for the first time and, if you intend to use the remaining ports on a module with the link set to ‘disable on power-up’ , you will need to enable them individually via the Network Manager.
Page 101: Smart Objects
Smart Objects Smart Objects Included in the MSH hub features are ‘smart objects’ . These are not counters, but are derived by calculation from counters and timers. The ‘smart objects’ are Bandwidth Used and Errors/Frame. By default, the rolling average is determined over a period of one hour, with the object updated every 15 minutes.
Page 102: End-Station Tracking (Est)
6: I HAPTER NTRODUCTION TO THERNET ANAGEMENT End-Station Tracking (EST) The management module examines every frame that passes through the chassis. It notes the number of the port the frame came through and the source address. It stores the source addresses and the port number in a database.
Page 103: Managing 802.3 Repeaters Using The Display Panel
802.3 R ANAGING EPEATERS SING ISPLAY ANEL This chapter explains: How to use the MSH Display Panel to obtain information about the repeaters.
Page 104 7: M 802.3 R HAPTER ANAGING EPEATERS SING ISPLAY ANEL Figure 7-1 Repeater Service Display Panel Menu DUA1850-0AAA05...
Page 105: Introduction
Introduction Introduction The figure opposite shows the full menu tree available from the display panel for repeater management. The display panel gives you access to data. You have no control function available from the panel. The description of the display panel menu given here assumes you have moved through the menu as far as ‘Chassis Service‘...
Page 106: Configuration
7: M 802.3 R HAPTER ANAGING EPEATERS SING ISPLAY ANEL Configuration This allows you to find out what module is in which slot. Only those slots which are occupied are reported. A backplane without a service attached is not reported. Figure 7-2 Repeater Configuration Panel Menu The bottom level window displays: the port number.
Page 107: Statistics
Introduction Statistics Statistics at the display panel can be viewed at three levels: repeater (see page 7-6). module (see page 7-7). port (see page 7-8). Whatever level you choose, the LCD will display ‘Calculating’ for a short time when you move to the Statistics display. Repeater is used to mean any repeater service.
Page 108 7: M 802.3 R HAPTER ANAGING EPEATERS SING ISPLAY ANEL Repeater Statistics From the repeater service for which you want the data, use ‘Enter’ to show the statistics as figures and ‘Next’ for the bar graph. Figure 7-3 Repeater Statistics Panel Menu If you want to change to another repeater service within the MSH chassis, return to the Service Selection level with ‘Select’...
Page 109 Introduction Module Statistics Move to the slot for which you want the data with ‘Next’ or ‘Previous’ . Use ‘Enter’ to show the statistics as figures and ‘Next’ for the bar graph. Figure 7-4 Module Statistics Panel Menu To display statistics for another module which is part of the current repeater service, use ‘Select’...
Page 110 7: M 802.3 R HAPTER ANAGING EPEATERS SING ISPLAY ANEL Port Statistics Move to the slot for which you want the data with ‘Next’ or ‘Previous’ . Repeat the procedure to find the port. Use ‘Enter’ to show the statistics as figures;...
Page 111: Managing 802.3 Repeaters Using The Vt100
802.3 R ANAGING EPEATERS VT100 I SING NTERFACE In this chapter you can read about: Using the management facility. The difference between Repeaters, Modules and Ports and how to manage them. Viewing and interpreting statistics.
Page 112: Facility Table
8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE Facility Table This subject was introduced in “Switching Services on the Backplane” page 5-34. Ethernet Movements Transferring modules to different Ethernets, or isolating modules from the backplane means that some ports cease to belong to a particular repeater, and become part of a new repeater.
Page 113 Facility Table SWITCH CANCEL Figure 8-1 Facility Table CAUTION: Take care to avoid forming a loop. Switch to ... - Select a backplane bus from the list box with the Space Bar. Type the Ethernet bus number you want to change to in the field and use the SWITCH button to enter it.
Page 114: Introduction To Repeater Management
8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE If you are using an expansion module on a repeater module, the LEDs above repeater module slot and the adjacent slot will be lit. If you want to transfer the mother board to another backplane, you will automatically transfer the expansion module to the same backplane at the same time.
Page 115: Management In General
Introduction to Repeater Management 802.3 from the Port Service Selection Menu Statistics (see chapter 5) 802.3 by selecting Module a repeater service. Config. 802.3 802.3 Repeater Port Config. Setup 802.3 Repeater Statistics 802.3 Resilience 802.3 Module Statistics Figure 8-2 Repeater Configuration Menu Management in general This section and the three following sections are the most important for configuring the Ethernet products to operate the way you require...
Page 116: Management Types
8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE Module If you manage at Module level, you are managing a single slot. If you are unsure about the difference between a repeater and a module, refer to “About Repeaters and Modules” on page 6-2.
Page 117 Introduction to Repeater Management All aspects of management use the same basic form. What you manage depends on the options you choose from the Repeater Configuration Screen. Select the level you wish to manage (Repeater, Module or Port) and then how you wish to manage that level (Configuration, Statistics or Setup).
Page 118: Managing The Repeater
8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE Managing the Repeater Repeater Configuration This screen shows the current configuration of the repeater. The information is read only. REPEATER STATS MODULE STATS MODULE Figure 8-3 Repeater Configuration Screen There are two fields, a list box and four buttons.
Page 119: Repeater Statistics
The Repeater Statistics screen is illustrated below. All the fields are read only. The statistics collected are determined by the IEEE 802.3 Repeater Management standard and by 3Com enhancements to that standard. The screen is updated every 3 seconds. The figures against the parameters can be cleared to zero using the CLEAR COUNTERS button at the foot of the screen.
Page 120: Managing Modules
8-10 8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE The ‘RESET COUNTERS’ button is displayed only when you have access level 3, 4 or 5. Reset Counters resets the all the hardware counters to zero and should be used with caution. Using this button may affect remote statistics gathering activity.
Page 121 Managing Modules 8-11 Repeater Service - This shows the service to which the module was attached earlier. Slot Number - The number of the MSH slot occupied by the module is displayed. Module Type - This shows the type of module in the reported slot. List Box - The list-box displays the Port Number, Media Type, Port State, Partition (state) and Link (state) of ports that make up the module.
Page 122: Module Statistics
8-12 8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE Module Statistics The Module Statistics screen is illustrated below. All the fields are read only. The statistics collected are those specified in the IEEE 802.3 Repeater Management supplement, plus some additions specific to the MSH.
Page 123: Managing Ports
Managing Ports 8-13 Definitions of the statistics are given in Appendix Managing Ports You access the port management screens through the Module Configuration screen. If you insert a Secure Smart module in a slot which had last held an non-secure Smart module, the ports of the secure module will power up in the configuration of the non-secure module.
Page 124: Port Setup
8-14 8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE Repeater Service - This field shows the service you have selected from the Service Selection Menu. Module Type - This field identifies the type of module you are managing.
Page 125 Managing Ports 8-15 CANCEL Figure 8-8 802.3 Port Setup Menu Repeater Service - This field shows the service you have selected from the Service Selection Menu. Module Type - R This field identifies the type of module you are managing. Slot Number - This is the number of the MSH slot occupied by the module.
Page 126 Shielded/unshielded 10Base-T connection. Fiber Synchronous fiber backbone connection. Security - ENABLED / DISABLED This field offers the choice between using or not 3Com’s LAN Security Architecture feature. When enabled, the security features are set to: Auto Learn: ON for 1 address...
Page 127: Resilience
Managing Ports 8-17 Disabling generation of Link Pulses also disables detection of Link Pulses. The remote end of the link should not be generating Link Pulses. Under these conditions repeater ports will assume connectivity and light the appropriate LEDs, even if there is no connection. Resilience Details of the resilience function are given in “Resilient Links”...
Page 128 8-18 8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE CANCEL CONFIRM DELETE Figure 8-9 802.3 Resilience Screen The Resilience screen: shows the current status of the resilient ports, allows you to change the standby port, enables you to force the use of the standby port, and permits you to enable or disable resilience.
Page 129 Managing Ports 8-19 Table 8-4 Media Type Abbreviations Abbreviation Media Type Unshielded Twisted Pair 10Base-T unshielded connection Twisted Pair Shielded/unshielded 10Base-T connection Fiber 10Base-FL connection Pair State - INVALID/OPERATIONAL If INVALID, the Resilient Pair is not active. OPERATIONAL denotes an active pair.
Page 130 8-20 8: M 802.3 R VT100 I HAPTER ANAGING EPEATERS SING NTERFACE DUA1850-0AAA05...
Page 131: Token Ring Management
OKEN ANAGEMENT...
Page 133: Introduction To Token Ring Management
NTRODUCTION TO OKEN ANAGEMENT This chapter: Provides a brief overview on token ring architecture. Describes the MSH RingBuilder, MAUs, Local Ring Sections, and Token Ring Services. Describes the connection of token rings outside the MSH chassis.
Page 134: The Token Ring Environment
9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT The Token Ring Environment This section provides a brief introduction to token ring architecture, followed by a more detailed explanation of token rings within the MSH chassis. Refer to “Ring Topology and Sizing” on page 9-20 for limitations on ring topology and maximum permitted cable lengths.
Page 135 The Token Ring Environment The simple ring of four stations is now wired through a MAU to give the physical topology of a star. Figure 9-2 Physical Connection Of Simple Ring A larger more complex token ring network can be designed using MAU modules which can be installed in a central hub device, such as the MSH chassis, to allow several MAUs to form a single token ring.
Page 136: Token Rings Within The Msh Chassis
9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT Figure 9-3 12 Stations Connected Through An MSH 12-port MAU Token Rings within the MSH Chassis The LinkBuilder MSH Token Ring product range currently comprises MAU modules, RingBuilders and management modules which fit into an MSH chassis.
Page 137: Msh Ringbuilder
Token Rings within the MSH Chassis The management module enables you to configure and monitor the operation of the RingBuilders, MAUs and any other manageable devices, for instance bridges. LinkBuilder MSH token ring products feature switches to select ring speed (4Mbps or 16Mbps). The ring speed selection cannot be overridden by management command: it can only be reported using VT100 management (see Chapter...
Page 138 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT need for complex calculations required to establish maximum lobe lengths (see “Cable Lengths” on page 9-21). A maximum of five RingBuilders may operate within the same MSH chassis. An additional function of a Ring Builder is Distributed Recovery Intelligence (DRI).
Page 139: Mac And Mac Addresses
Token Rings within the MSH Chassis Figure 9-4 RingBuilders Providing Two Rings The actual number of MAUs and bridges that can be connected by a RingBuilder is governed by the number of slots in the MSH chassis. For example, in an MSH managed chassis, the RingBuilder Module and management module will occupy two slots leaving nine slots for MAUs and bridge modules.
Page 140: Msh Token Ring Maus
9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT A second MAC device (MAC2) may be added to the RingBuilder in order to manage and control the external Backup Ring. This will provide the network management system with information about the condition of the Backup Ring to ensure that it is in good working order when required.
Page 141: Msh Management Module
Token Rings within the MSH Chassis MSH Management Module LinkBuilder MSH token ring products may operate in either managed or unmanaged environments. The MSH Management Module is a mandatory requirement for a managed token ring system. Through the management module you can communicate with RingBuilders, MAUs and Bridges.
Page 142 9-10 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT Figure 9-5 Example Of A Possible Configuration RingBuilder2 will not automatically take over if RingBuilder1 fails. Manual intervention will be required to change the local ring section number of RingBuilder2: see “Facility Table” on page 11-20. The next configuration (see Figure 9-6) shows how the previous system can be reconfigured if one of the MAUs needs to be operated as a separate ring.
Page 143: Token Ring Services
Token Ring Services 9-11 The last example, Figure 9-7, shows a bridge internal to the MSH chassis, which links the two token ring networks within the chassis. Figure 9-7 Internal Rings With Bridge Token Ring Services A token ring service is a set of token ring modules which operate together as a group.
Page 144: Isolated Ringbuilders
9-12 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT Isolated RingBuilders A RingBuilder Module will operate as a stand-alone device if its local ring section number does not match that of any other token ring module in the chassis, or if its local ring section number is set to zero. In stand-alone mode the RingBuilder will not construct a local ring section in the MSH chassis and consequently cannot monitor the operation of any MAUs within the chassis.
Page 145: Token Ring Configuration
Token Ring Configuration 9-13 Token Ring Configuration This section describes the configuration rules for token rings operating within an MSH chassis. Maximum Number of Local Ring Sections A local ring section consists of a RingBuilder and the MAUs which share the same ring section number.
Page 146 9-14 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT the highest numbered slot. They then pass to the module in the next highest numbered slot. The frames continue being passed through the modules until they reach the module in the lowest numbered slot. Then they return to the RingBuilder.
Page 147: Extending The Local Ring Section
Extending the Local Ring Section 9-15 Figure 9-10 Connections Of A Local Ring Section Frames enter the local ring section through the Ring-In port of the RingBuilder, and then travel via the MSH backplane to the MAU in slot 10 passing via port 1 (the top port) on the MAU to port 12 (the bottom port).
Page 148 9-16 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT NORMAL mode - In NORMAL mode the RingBuilder’s local ring section is inserted into the main path of the external ring, thereby extending the local ring section to include other stations on the external ring.
Page 149: Using The Ringbuilder Ring-In/Ring-Out Ports
Extending the Local Ring Section 9-17 Figure 9-12 Repeater RingBuilder Mode The diagram above shows the RingBuilder in REPEATER mode with the Main Ring and Backup Ring passing through, and the local ring section operating normally as a self-contained token ring. Use either VT100 management (see “RingBuilder Modes”...
Page 150 9-18 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT In the event of the MSH chassis being powered down, the RingBuilder will automatically wrap at the Ring-In and Ring-Out ports to prevent the external ring from fragmenting. However, the RingBuilder will not provide retiming to the external ring.
Page 151 Extending the Local Ring Section 9-19 the Backup Ring at the Ring-In port. Figure 9-14 Wrapped RingBuilder Mode The wrapped mode can be used to remove a RingBuilder from the ring for maintenance purposes without interrupting the external ring, or to temporarily return the ring to normal operation while a faulty trunk cable or a connector is replaced.
Page 152: Ring Topology And Sizing
9-20 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT The figure above shows both ports being wrapped with the result that the ring components connected to the chassis become separated from the external ring. Wrapped mode is useful in helping to trouble shoot faults on the network.
Page 153: Cable Lengths
Ring Topology and Sizing 9-21 stations and each of its MAUs that are configured into its ring count as one station. The maximum station count permitted on a ring is determined by the cable type. A ring utilizing STP IBM Type 1 cable or UTP Levels 4 or 5 can have a maximum station count of 250.
Page 154 9-22 9: I HAPTER NTRODUCTION TO OKEN ANAGEMENT Table 9-2 Ring Speed And Cable Length For Lobe Cables Uisng MAUs Ring Speed Maximum Lobe Length Cable Type (Mbps m(ft) 300 (1000) STP IBM Type 1 300 (1000) 130 (430) UTP level 3 70 (230) 200 (660) UTP level 4...
Page 155: Managing Token Rings Using The Display Panel
ANAGING OKEN INGS SING ISPLAY ANEL This chapter: Explains how to obtain information on token rings within the MSH chassis using the display panel.
Page 156: Introduction
10-2 10: M HAPTER ANAGING OKEN INGS SING ISPLAY ANEL Introduction If you have an MSH Management Module fitted in your MSH chassis, you can use the display panel on the MSH chassis to determine the configuration of a token ring, or monitor the state of the token rings. For instance, you can find out: The type of modules assigned to the selected ring, their slot number in the chassis and the status of their ports...
Page 157 Introduction 10-3 Figure 10-1 Display Panel Token Ring Service Menu DUA1850-0AAA05...
Page 158: Token Ring Service
10-4 10: M HAPTER ANAGING OKEN INGS SING ISPLAY ANEL Token Ring Service To display the configuration of a token ring or view its soft error statistics you must select a token ring service at the Chassis Service menu. The MSH chassis supports easy identification of services. When you select a token ring service, the LEDs on the display panel above each module that forms that service will flash pink/green until you select the next level menu.
Page 159: Ring Status
Ring Status 10-5 Ring Status This option enables you to determine the status of each token ring service in the MSH chassis. Figure 10-2 Ring Status Menu The bottom level window displays the status of the token ring. Mode is either Normal or Beacon. Normal: the ring is operating normally.
Page 160: Ring Configuration
10-6 10: M HAPTER ANAGING OKEN INGS SING ISPLAY ANEL Ring Configuration This enables you to find out the configuration of the modules in the selected token ring service. Figure 10-3 Ring Configuration Menu Module type - RB (RingBuilder). MAU Module. AMAU Module.
Page 161 Ring Configuration 10-7 MAU Module Port: This is the port number on the selected module. Media: - UTP/STP/Fiber. This is the type of cable connecting the ring-station to the port on the module. State: - Enabled/ Disabled. This shows whether the port is enabled or disabled. The port state can be changed through VT100 management (see “Port Setup”...
Page 162: Ring Statistics
10-8 10: M HAPTER ANAGING OKEN INGS SING ISPLAY ANEL Ring Statistics This enables you to gather and display soft-error statistics. Soft-errors indicate intermittent faults which temporarily disrupt normal operation of the network. Soft errors may be caused for example by token ring adapters entering and leaving the ring, or receive buffer overflows.
Page 163: Ring Station Information
Ring Station Information 10-9 Ring Station Information Enables you to step through the topology of the ring, displaying the MAC address of each station on the ring and the soft-error value for the station. Refer to “Station Location on a Local Ring Section” page 9-13 for an explanation of how stations are located on the ring.
Page 164 10-10 10: M HAPTER ANAGING OKEN INGS SING ISPLAY ANEL DUA1850-0AAA05...
Page 165: Managing Token Rings Using The Vt100 Interface
ANAGING OKEN INGS VT100 I SING THE NTERFACE This chapter explains how to: Use the VT100 interface to manage your token ring. Adapt the MSH Management Module to a token ring only environment.
Page 166: Introduction
11-2 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE Introduction This chapter explains how to use the VT100 management facility to setup and manage your token ring. Refer to the Preface at the start of this manual for an explanation on access levels, screen conventions and the use of special characters.
Page 167: Token Ring Only Networks
Token Ring Only Networks 11-3 The security access level needed to access the screen. This is given in brackets opposite the section title and is shown in italics. Refer to the Preface at the start of this manual for an explanation of the different access levels.
Page 168 11-4 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE SWITCH CANCEL Figure 11-1 MAC Selection Screen The list box displays the MACs available for sharing within the MSH hub. The information is displayed as follows: Slot - Displays the number of the MSH slot occupied by the module of the identified MAC.
Page 169 Token Ring Only Networks 11-5 switch may cause the management station to lose contact with the device. Sharing MACs If the management module is configured to share a RingBuilder MAC, the management module will continue to use its own Ethernet MAC until the RingBuilder has completed its initialization.
Page 170: Token Ring Management
11-6 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE Token Ring Management Select the token ring service from the Service Selection menu before you proceed (see “Service Selection Menu” on page 5-10). The Token Ring Configuration Menu will appear enabling you to setup and monitor the token ring service that you have selected.
Page 171: Ringbuilder Setup
RingBuilder Setup 11-7 RingBuilder Setup To make changes, you must have security access level 3,4 or 5. The OK button will only be displayed if you have level 3, 4 or 5 access rights. This screen allows you to view the operational state of the selected service and to set the operating mode for the RingBuilder and its Ring-In and Ring-Out ports.
Page 172 11-8 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE Backup Ring State - Normal / Beacon / Not Available These indicate the Operational State of the Backup Ring. Normal - The ring is operating normally. Beacon - There are beacon frames on the ring. This may indicate a hardware fault on the ring, for instance a faulty connection, or a faulty ring-station adapter.
Page 173 RingBuilder Setup 11-9 The initial release of the MSH RingBuilder only supports STP cabling at the Ring-In and Ring-Out ports, later releases may support other media. Contact your supplier for up-to-date information. Ring-In Mode - FAIL-SAFE / OPEN / WRAPPED In FAIL-SAFE mode the Ring-In will automatically wrap in the event of a cable break.
Page 174: Ringbuilder Mac Addresses
11-10 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE reconnection; that is, it will remain locked even if the fault is resolved. RingBuilder MAC Addresses Select the ADDRESSES button at the bottom of the RingBuilder Setup screen. The screen will display the MAC addresses of the RingBuilder assigned to the selected service.
Page 175: Ring Statistics
Ring Statistics 11-11 Ring Statistics This screen, shown below, displays the global ring statistics. CLEAR COUNTERS RESET COUNTERS Figure 11-6 Ring Statistics Screen The RESET COUNTERS button is only displayed if you are using access levels 3, 4 or 5. Beacon Count - This is a count of the number of times that the Main Ring state has changed to “beacon”...
Page 176: Ring Topology
11-12 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE BUTTONS: CLEAR COUNTERS - Use this button to clear the parameter values to zero. This is useful for monitoring the speed of change over a particular period of time. This button does not affect the counters on the RingBuilder Module.
Page 177: Station Sequence In The Topology List
Ring Topology 11-13 The list box displays the MAC addresses of the stations on the selected service. Up to 12 addresses are displayed at a time, use the cursor keys to scroll up and down the list and the space bar to select a station. Station Sequence in the Topology List The addresses are listed in downstream order.
Page 178 11-14 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE CLEAR COUNTERS RESET COUNTERS DELETE STATION Figure 11-8 Ring Station Statistics Screen The RESET COUNTERS and DELETE STATION buttons are only displayed if you are using access levels 3, 4 or 5. Alternatively, to display statistics for a station not currently inserted into the ring: 1 Press [Return] to move the cursor directly to the Address Selected box.
Page 179 Ring Topology 11-15 were not present at the previous station. This count helps to identify the location on a ring where these errors may be originating. Internal Errors - This is the count of the number of internal errors recognized by the station. Internal errors are recoverable, but indicate that a station is in a marginal operating condition.
Page 180: Ring Module Status
11-16 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE Token Errors - This is the count of the number of times that the active monitor station needs to generate a new token. Frequency Errors - This is a count of the number of times that a ring-station detects a frequency error.
Page 181: Ring Module Setup
Ring Module Status 11-17 SETUP Figure 11-9 Module Status Screen Ring Module Setup To setup a MAU module on the ring: 1 Select a MAU from the Ring Module Status screen using the cursor keys and space bar. 2 Move to the SETUP button and press [Return]. A screen similar Figure 11-10 will be displayed.
Page 182: Port Setup
11-18 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE The PORT SETUP button will only be displayed if you are using access levels 3, 4 or 5. The screen displays the following information about each port on the selected MAU.
Page 183: Changing The Local Ring Section Number
Changing the Local Ring Section Number 11-19 CANCEL Figure 11-11 Port Setup Screen 3 Toggle the value of the Admin state to either Enabled or Disabled as required. 4 Move to the OK button and press [Return] for the change to take effect. When the Admin state is disabled, a new field is displayed showing how the port was disabled.
Page 184: Facility Table
11-20 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE Only one RingBuilder can be assigned to a local ring section. In a managed chassis, if a RingBuilder is inserted into an MSH chassis with the same ring number as an existing RingBuilder that is already installed in the chassis, the new RingBuilder will have its local ring section number automatically set to 0.
Page 185 Changing the Local Ring Section Number 11-21 between two rings. The screen below shows a bridge (path 1) connecting rings 1 and 3. You may change a ring number and path through the ‘Switch to ...’ field. SWITCH CANCEL Figure 11-12 Facility Table Screen CAUTION: Take care to avoid bridging within a ring.
Page 186 11-22 11: M VT100 I HAPTER ANAGING OKEN INGS SING THE NTERFACE The number inserted in the ‘value’ field in the table above will depend on the product to be connected. It has a meaning only for a specific product. For the Token Ring Bridge, the number is ‘1’ . Modules with local ring section number set to zero will be isolated from the MSH backplane.
Page 187: High
PEED EVICE ANAGEMENT...
Page 189: Management
FDDI D EVICE ANAGEMENT This chapter: Describes the part of the management module in the management of 3Com’s FDDI devices.
Page 190: Introduction
EVICE ANAGEMENT Introduction 3Com’s FDDI modules are intelligent devices. Each has a VT100 management interface, the use of which is described in the appropriate manual. The management module allows you read some details of the devices through the display panel and its VT100 screens.
Page 191: Fddi Ringbuilder
FDDI RingBuilder 12-3 FDDI RingBuilder To use this device you will need the 3C18001 MSH chassis. An FDDI RingBuilder (3C18310) and its associated Port modules will be recognized by the management module as a service, FDDI Concentrator x, where x is the number of the FDDI ring to which it is attached.
Page 192 12-4 12: FDDI D HAPTER EVICE ANAGEMENT The three Ethernet ports are managed only by the LinkSwitch management facility, but the Facility Table in the VT100 screens will display the connections. The FDDI port may be attached internally to the FDDI backplane or switched to connect to external device using the management module (see “Facility Table”...
Page 193: Appendices
PPENDICES...
Page 195: Technical Specifications
ECHNICAL NFORMATION ABLE Technical Specifications Performance Standards The LinkBuilder MSH Management Module has been designed to meet the following standards. Reliability MIL HDBK 217F Notice 1 Safety UL1950 EN 60950 CSA 22.2 #950 FCC Part 15 Class A EN 55022 level A EN 50082-1 IEC 801 parts 2 - 5 Vfg 243...
Page 196: Babt Approval
A: T PPENDIX ECHNICAL NFORMATION ABLE BABT Approval For UK Users only. The LinkBuilder MSH chassis, fitted with a Management Module, is covered by Oftel General Approval, NS/G/12345/J/100003, for indirect connection to a public telecommunications system. This can be achieved using the serial port and an approved modem. Electrical Details Power Consumption +5Volts 3.9A...
Page 197: Pc-At Serial Cable
Cable Pin Outs PC-AT Serial Cable PC-AT Serial Port RS-232/V.24 Management Port 9 pin male 25 pin male only required if screen always required Ground Ground required for handshaking Figure A-2 9-pin To RS-232 25-pin Modem Cable RS-232/V.24 Modem Port Management Port 25 pin female 25 pin male...
Page 198: Status In' Connector
A: T PPENDIX ECHNICAL NFORMATION ABLE ‘Status In’ Connector The pin designations of the connector are given below. Figure A-4 Status In Socket The EXTOUTx pins are connected to the same isolated 0V connection on the Management Module. You do not have to use all four. DUA1850-0AAA05...
Page 199: Thernet Tatistics
THERNET TATISTICS This appendix lists the terms that are used in the Repeater Statistics, Module Statistics and Port Statistics screens. There are suggestions for courses of action to take, if required. In general, if repeater statistics indicate a problem, try to isolate the source of the problem by examining module and then port statistics.
Page 200 B: E PPENDIX THERNET TATISTICS addressed to all MAC addresses (that is, all devices) on the network. The total number of broadcast frames will normally be a small percentage of the value seen for unicast frames. A high level of broadcast frames can adversely affect network performance.
Page 201 Late Events . A Late Event is an out of window collision, which may occur if you have an 802.3 LAN that exceeds the maximum size as defined by IEEE. A Late Event is also counted as a collision. Multicast Frames . This is the total number of multicast frames seen at the repeater, module or port.
Page 202 B: E PPENDIX THERNET TATISTICS Total Errors . This field should be a small proportion of the Good Frames figure. It is the sum of the following errors seen in the repeater, module or port: FCS Errors, Alignment Errors, Short Events, Too Long Frames, Very Long Events, Data Rate Mismatches,...
Page 203: Support
3Com provides easy access to technical support information through a variety of services. This appendix describes these services. On-line Technical Services 3Com offers worldwide product support seven days a week, 24 hours a day, through the following on-line systems: 3Com Bulletin Board Service (3ComBBS) World Wide Web site ®...
Page 204: World Wide Web Site
ThreeComForum on CompuServe ThreeComForum is a CompuServe-based service containing patches, software, drivers, and technical articles about all 3Com products, as well as an interactive forum for technical questions. To use ThreeComForum, you need a CompuServe account. To use ThreeComForum: 1 Log on to CompuServe.
Page 205: 3Comfacts Automated Fax Service
3ComFacts Automated Fax Service 3Com Corporation’s interactive fax service, 3ComFacts, provides data sheets, technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, seven days a week. Call 3ComFacts using your touch-tone telephone. International access numbers are:...
Page 206: Support From 3Com
If you are unable to receive support from your network supplier, technical support contracts are available from 3Com. In the U.S. and Canada, call (800) 876-3266 for customer service. If you are outside the U.S. and Canada, contact your local 3Com sales office to find your authorized service provider: Country...
Page 207: Returning Products For Repair
Returning Products for Repair 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 RMA number will be returned to the sender unopened, at the sender’s expense.
Page 208 C: T PPENDIX ECHNICAL UPPORT DUA1850-0AAA05...
Page 209: Advanced
RMON DVANCED ANAGEMENT What is RMON? Transcend SmartAgent RMON provides a mechanism for remote monitoring and analysis of a Local Area Network. RMON is the common abbreviation for the Remote Monitoring MIB as defined by the IETF in documents RFC 1271 and RFC 1757. A typical RMON system consists of two components: The Probe - Connects to a LAN segment, examines all the LAN traffic on that segment and keeps a summary of statistics (including...
Page 210: Benefits Of Rmon
(such as history information and packet capture) to perform additional diagnoses. 3Com Transcend RMON SmartAgents However, RMON does require one probe per LAN segment (segments are separated by bridges or routers) and stand-alone RMON probes have traditionally been expensive.
Page 211 (switch off and then back on) or switch to a backup link. The RMON capabilities of 3Com hubs can only be accessed through SNMP applications, not through the serial interface or Telnet. No RMON related VT100 forms are available.
Page 212: The Rmon Implementation
D: RMON PPENDIX DVANCED ANAGEMENT The RMON Implementation The following table summarizes the support in this product for the nine standard groups of RMON. The table also specifies the configuration of the various groups after system initialization. Table D-1 RMON Group Configurations Effect of Reset on Group Initial Configuration...
Page 213 The RMON Implementation create a who-talks-to-whom matrix on interface 2. The RMON console considers the MSH hub to have a single RMON probe with multiple interfaces. Interface Names RMON: Ethernet Backplane 1 RMON: isolated Module in slot 1 RMON: Ethernet Backplane 2 RMON: isolated Module in slot 2 RMON: Ethernet Backplane 3 RMON: isolated Module in slot 3...
Page 214: Effect On Rmon Statistics Of Msh Configuration Changes
D: RMON PPENDIX DVANCED ANAGEMENT Effect on RMON Statistics of MSH Configuration Changes. Each configuration change will effect the RMON statistics in some way. The nature of the effect will depend on the exact configuration change. Inserting a Smart Module Modules clear all local RMON statistics when they are inserted.
Page 215: Counters
Counters Counters Counters are the MIB objects which hold and update the number of occurrences of a particular event through a port, module, repeater or on the network. The management facility reads the counters it needs for the output, processes the information and displays the result. The counter may be associated with a port, or a module, or a repeater, or even a chassis.
Page 216: Counters And Rmon Alarms
D: RMON PPENDIX DVANCED ANAGEMENT Counters and RMON Alarms The management module supports the RMON alarm. Alarms can be assigned by Transcend or any SNMP network manager to monitor any counter. Consult the manual of the application you use for details of how to set up the possible 1024 alarms.
Page 217 Counters and RMON Alarms Manually, you may choose any value for the thresholds using your network manager. The tide marks are monitored continually during normal running to provide data for later calibration. This explains the high tide mark being above the threshold level in the diagram below. Figure A-6 Counter Values After Setting Thresholds Alarms can be set up with two actions;...
Page 218 D-10 D: RMON PPENDIX DVANCED ANAGEMENT 3 The running value has fallen below the low threshold. If an action has been assigned to the low threshold, that action will be performed. 4 The running value had fallen below the low threshold before rising above the high threshold.
Page 219: Using Alarms
Counters and RMON Alarms D-11 Using Alarms How to set up alarms is described in the manuals of your management application. The alarm carries the ability to define actions to be taken when the alarm value rises above the high threshold, and/or falls below the low threshold.
Page 220: Audit Log
D-12 D: RMON PPENDIX DVANCED ANAGEMENT Frames Received counter of a port, with the ‘Notify and Blip’ action (see Table D-2 on page D-10), on the high threshold. If a broadcast storm occurs on that port and the counter crosses the high threshold, the port will disabled for 5 seconds, allowing the storm to subside and preventing the storm from reaching the rest of the network.
Page 221: Ndex Of Management
NDEX OF ANAGEMENT CTIONS AND This index consists of an alphabetical listing of Field names taken from the VT100 screens. It relates the field names to the page in this user guide where you can find a description of the use of the field and the title of the screen containing it.
Page 222 E: I PPENDIX NDEX OF ANAGEMENT CTIONS AND Parameter Page Screen Access Level 5-12 Create Users Screen Active Monitor Changes 11-11 Ring Statistics Active Port 8-17 802.3 Resilience Address Selected (TR MAC) 11-12 Ring Topology Address Type (of intelligents) 5-34 Address Table Screen Address (of intelligents) 5-34...
Page 223 Parameter Page Screen Broadcast Frames 8-12 802.3 Module Statistics Broadcast Frames 8-13 802.3 Port Statistics Burst Errors 11-13 Ring Station Statistics CHANGE USER 5-12 Security Menu Char Size RS232 Setup Screen CHASSIS CONFIGURATION 5-10 Service Selection Menu Chassis Type 5-11 Chassis Configuration Screen CLEAR COUNTERS 802.3 Repeater Statistics...
Page 224 E: I PPENDIX NDEX OF ANAGEMENT CTIONS AND Parameter Page Screen DELETE USERS 5-12 Security Menu DELETE USERS 5-14 Delete Users Screen Destination 5-29 System Loader Device IP Address 5-17 MSH Setup Screen Device IP Address 5-34 Address Table Screen Device SubNet Mask 5-17 MSH Setup Screen...
Page 225 Parameter Page Screen Good Octets 8-13 802.3 Port Statistics Hardware Version 5-11 Chassis Configuration Screen Hardware Version 5-33 Module Configuration Screen INITIALIZE DEVICE Main Menu Internal Errors 11-13 Ring Station Statistics IP or IPX Address (for traps) 5-20 Setup Traps Screen IPX Network 5-17 MSH Setup Screen...
Page 226 E: I PPENDIX NDEX OF ANAGEMENT CTIONS AND Parameter Page Screen MAC in use 5-21 MAC Selection Form MAC in use 11-3 Shared MAC Selection Main Port 8-17 802.3 Resilience Main Ring State 11-7 RingBuilder Setup MANAGE (intelligent service) 5-34 Address Table Screen Management Module Hardware 5-24...
Page 227 Parameter Page Screen Module Type 11-18 Port Setup Module Type 11-20 Facility Table Monitor Errors 11-13 Ring Station Statistics MSH SETUP Main Menu MSH STATUS Main Menu Multicast Frames 802.3 Repeater Statistics Multicast Frames 8-12 802.3 Module Statistics Multicast Frames 8-13 802.3 Port Statistics Need To Know (secure modules)
Page 228 E: I PPENDIX NDEX OF ANAGEMENT CTIONS AND Parameter Page Screen Port State 8-10 802.3 Module Configuration Port State 8-14 802.3 Port Setup PORT STATS 8-10 802.3 Module Configuration POST Result 5-24 MSH Status Menu Power Requirement 5-33 Module Configuration Screen Prom Software Revision 5-24 MSH Status Screen...
Page 229 Parameter Page Screen Ring-in State 11-7 RingBuilder Setup RING MODULE STATUS 11-6 802.5 TR Configuration Ring-out Media 11-7 RingBuilder Setup Ring-out Mode 11-7 RingBuilder Setup Ring-out State 11-7 RingBuilder Setup Ring Speed 11-7 RingBuilder Setup RING STATISTICS 11-6 802.5 TR Configuration RING TOPOLOGY 11-7 RingBuilder Setup...
Page 230 E-10 E: I PPENDIX NDEX OF ANAGEMENT CTIONS AND Parameter Page Screen Slot 5-21 MAC Selection Form Slot 5-33 Module Configuration Menu Slot 802.3 Repeater Configuration Slot 11-17 Ring Module Status Slot 11-18 Port Setup Slot Number 5-33 Module Configuration Screen Slot Number 8-10 802.3 Module Configuration...
Page 231 E-11 Parameter Page Screen SYSTEM LOAD Main Menu System Up Time 5-24 MSH Status Screen Throttle 5-20 Setup Traps Screen Time (since reset) 5-25 Fault Log Token Errors 11-13 Ring Station Statistics Too Long Frames 802.3 Repeater Statistics Too Long Frames 8-12 802.3 Module Statistics Too Long Frames...
Page 232 E-12 E: I PPENDIX NDEX OF ANAGEMENT CTIONS AND DUA1850-0AAA05...
Page 233: Index
NDEX backup ring 9-6 Numerics state 11-8 bandwidth 6-5 3Com Bulletin Board Service (3ComBBS) C-1 bandwidth used (%) B-1 3Com sales offices C-4 beacon 9-6, 9-18, 10-5, 11-7 3ComFacts C-3 count 11-11 blanking plate 3-6, 3-7 broadcast frames B-1 bulletin board service C-1...
Page 234 configuration (continued) errors IP address 5-17 burst 11-15 MAC address 5-17 frame copy 11-15 module 5-33, 8-7, 8-10, 10-6 frequency 11-16 physical 4-6 internal 11-15 port 8-7 line 11-14 ports 8-6 monitor 11-15 repeater 8-7, 8-8 soft 10-2, 10-8, 11-11, 11-16 serial port 5-21, 5-22 token 11-16 SLIP address 5-18...
Page 235 location 11-15 locking bar 3-6, 3-7 logical ring 9-2 initialization 2-10 lost frames 11-15 installation LSA 6-4 overview 3-3 summary 3-14 intelligent device 5-10, 5-34 address table 5-34 internal errors 11-15 MAC 9-7 IP address 3-10, 5-17 MAC address 3-11, 5-17 local bridge module 5-35 main port 8-18 trap 5-20...
Page 236 mode (continued) pin outs A-2 wrapped 9-17 port 8-6, 8-14 module 8-6 configuration 8-7 available 8-8 FDDI 12-4 changing 3-11 main 8-18 configuration 8-7, 8-10, 10-6 serial 2-8 ECS 3-5 standby 8-18 ethernet 6-2 state 8-16 FDDI 12-2 status in 2-6, 3-12 management 2-3, 8-6, 9-9 power LED 2-6 MAU 9-4...
Page 237 RS232 port. See serial port. SNMP 2-8, 3-9 runt frames B-3 soft errors 10-2, 10-8, 11-11, 11-16 software version 2-3 source address changes 8-14 last 8-14 space bar 5-4 safety information 1-1 special characters 5-4 screen conventions. See conventions. standards A-1 security 5-8 standby port 8-18 access levels 5-13, 5-14...
Page 238 threshold high D-9, D-10 low D-9, D-10 tide mark D-9 token errors 11-16 token ring 1-2 too long frames B-3 topology ring 9-20, 11-12 star 9-2 total collisions B-3 total errors B-4 transmit collisions B-4 trap 5-20 community string 5-20 IP address 5-20 unicast frames B-4 users...
Page 239: Fcc Statement
LECTRO MAGNETIC OMPATABILITY TATEMENT FCC Statement This equipment has been tested with a class A computing device and has been found to comply with part 15 of FCC Rules. Operation in a residential area may cause unacceptable interference to radio and TV receptions requiring the operator to take whatever steps are necessary to correct the interference.
Page 240: Electro - Magnetic Compatability Statement
LECTRO MAGNETIC OMPATABILITY TATEMENT Information To The User If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient the receiving antenna.
Page 241: Limited Warranty
Spare parts and spares kits 90 days If a product does not operate as warranted during the applicable the warranty period, 3Com shall, at its expense, correct any such defect by repairing the defective product or part or, at its option, by delivering to Customer an equivalent product or part to replace the defective item.
Page 242 ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS. 3COM SHALL NOT BE 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...

3Com LINKBUILDER 3C18500 User Manual

Quick Links

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for 3Com LINKBUILDER 3C18500

Summary of Contents for 3Com LINKBUILDER 3C18500