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3Com OfficeConnect 3C16710 User Manual

3com hub user guide
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16710.bk : FRONT.FRM Page 1 Tuesday, October 7, 1997 11:38 AM
O
F F I C E
3C16710
U
S E R
Part No.
DUA1671-0AAA03
Published
October 1997
C
O N N E C T
G
U I D E
H
8/TPM
®
U B

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  • Page 1 16710.bk : FRONT.FRM Page 1 Tuesday, October 7, 1997 11:38 AM F F I C E 3C16710 S E R U I D E Part No. DUA1671-0AAA03 Published October 1997 ® O N N E C T 8/TPM...
  • Page 2 16710.bk : FRONT.FRM Page 2 Tuesday, October 7, 1997 11:38 AM 3Com Corporation 5400 Bayfront Plaza © 3Com Technologies, 1997. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Technologies.

  • Page 3: Table Of Contents

    Conne cti ng Office Connect H ubs Together 2-8 S pot Checks 2-11 B O U T E T W O R K 3Com Network Management 3-1 Why Manage Your Hub? 3-2 Connecting to the Hub and Managing 3-3 Managing Through the Console Port 3-4...
  • Page 4 16710.bk : 16710.TOC Page iv Tuesday, October 7, 1997 11:38 AM A N A G I N G O U R S I N G U I C K O N F I G A N A G E R Installing Quick Config Manager 4-1 Installation Requirements 4-1 Installation Procedure 4-2...
  • Page 5 E C H N I C A L U P P O R T Online Technical Services C-1 World Wide Web Site C-1 3Com Bulletin Board Service C-1 3ComFacts Automated Fax Service C-2 3ComForum on CompuServe Online Service C-3 Support from Your Network Supplier C-4...
  • Page 6 16710.bk : 16710.TOC Page vi Tuesday, October 7, 1997 11:38 AM...

  • Page 7: M P O R T A N T

    16710.bk : IMSAFETY.FRM Page 7 Tuesday, October 7, 1997 11:38 AM M P O R T A N T A F E T Y WARNING: Warnings contain directions that you must follow for your personal safety. Follow all instructions carefully. Please read carefully the following information before installing the OfficeConnect®...

  • Page 8: I C H T I G E

    16710.bk : IMSAFETY.FRM Page 8 Tuesday, October 7, 1997 11:38 AM I C H T I G E I C H E R H E I T S H I N W E I S E ACHTUNG: Die Warnungen enthalten Anweisungen, die Sie zur eigenen Sicherheit zu befolgen haben.

  • Page 9: L' I N F O R M A T I O N D E

    16710.bk : IMSAFETY.FRM Page 9 Tuesday, October 7, 1997 11:38 AM L’ I N F O R M A T I O N D E AVERTISSEMENT: Les avertissements contiennent les instructions que vous devez suivre pour votre sécurité personnelle. Suivre toutes les instructions avec soin.

  • Page 10: O U R

    For information on configuring the hub’s address settings, see “Giving the Hub an IP Address” on page 4-7 . Parameter Default Your Setting Device 3Com Name Emergency 3Com Contact Support 3Com Contract IP Address 0.0.0.0...

  • Page 11: B O U T

    Creating your network Chapter 2 What you can do with management and the Chapter 3 different ways you can manage your hub Managing your hub using 3Com’s Transcend® Chapter 4 Quick Configuration Manager Additional management using VT100 Chapter 5 Problem solving...

  • Page 12: Conventions

    16710.bk : ABOUTGUI.FRM Page 2 Tuesday, October 7, 1997 11:38 AM B O U T H I S U I D E Conventions The icon conventions that are used in this guide are: Icon Type Description Information Note Information notes call attention to important features or instructions.

  • Page 13: N T R O D U C T I O N

    16710.bk : GETSTART.FRM Page 1 Tuesday, October 7, 1997 11:38 AM N T R O D U C T I O N Welcome to the world of networking with 3Com ® . In the modern business environment, communication and sharing information is crucial.

  • Page 14: Networking Terminology

    16710.bk : GETSTART.FRM Page 2 Tuesday, October 7, 1997 11:38 AM 1: I H A P T E R N T R O D U C T I O N a stack (each hub is a single repeater) . The Office Connect Hub 8/TP M h as eight 10BASE-T ports and a ninth 10BASE-2 (Coax) port.
  • Page 15 16710.bk : GETSTART.FRM Page 3 Tuesday, October 7, 1997 11:38 AM A Segment is the length of Ethernet cable connected to a port, whether this cable is 10BASE-T, 10BASE-2 (Coax) , or other type. When you daisy-chain equipment together with 10BASE-2 (Coax) cable, all of the cable forms a single segment.
  • Page 16 16710.bk : GETSTART.FRM Page 4 Tuesday, October 7, 1997 11:38 AM 1: I H A P T E R N T R O D U C T I O N IP (Internet Protocol) is a data communication protocol used to connect computers and data equipment into computer networks.

  • Page 17: R E A T I N G

    16710.bk : CREYRNET.FRM Page 1 Tuesday, October 7, 1997 11:38 AM R E A T I N G All of the products in the Office Connect® r ange are designed for ease of use. This chapter describes how to use your Office Connect Hub 8/TP M to create your network, and has information on: The hub’s LEDs and ports What you need to create your network...
  • Page 18 16710.bk : CREYRNET.FRM Page 2 Tuesday, October 7, 1997 11:38 AM 2: C H A P T E R R E A T I N G O U R E T W O R K Figure 2-1 The LEDs And How To U se Them...
  • Page 19 16710.bk : CREYRNET.FRM Page 3 Tuesday, October 7, 1997 11:38 AM LEDs and Ports Figure 2-2 The Ports And H ow To Use Them...

  • Page 20: Before You Start

    This guide Workstation Connections To connect workstations and other equipment to your hub, you need : 1 0BASE-T connections for all your equipment. 3Com produce a range of easy to install network adapters, which provide your workstations with 10BASE-T connections.

  • Page 21: Posi T Ion Ing The Office Connect H Ub

    16710.bk : CREYRNET.FRM Page 5 Tuesday, October 7, 1997 11:38 AM In order to comply with the 10BASE-T standard, ports designed for workstation connections have been marked with the graphical symbol ‘x’ . This denotes a crossover in the port’ s internal wiring, for example 1x, 2x, 3x...

  • Page 22: Using The Rubber Feet And Stacking Cl Ips

    16710.bk : CREYRNET.FRM Page 6 Tuesday, October 7, 1997 11:38 AM 2: C H A P T E R R E A T I N G O U R E T W O R K Using the Rubber Feet and Stacking Cl ips The four self-adhesive rubber feet prevent your hub from sliding around on your desk.

  • Page 23: Wall Mounting The Office Connect H Ub

    16710.bk : CREYRNET.FRM Page 7 Tuesday, October 7, 1997 11:38 AM Wall Mounting the Office Connect H ub There are two slots on the underside of the OfficeConnect hub which are used for wall mounting. You can mount the hub with the LEDs facing upwards or downwards, to suit your needs.

  • Page 24: Conne Cti Ng Office Connect H Ubs Together

    If you are using port 8 to connect a workstation, ensure the MDI/MDIX switch is set to MDIX. If you do not use the 10BASE-2 (Coax) port, you do not need to terminate it with a terminator (end piece) .
  • Page 25 16710.bk : CREYRNET.FRM Page 9 Tuesday, October 7, 1997 11:38 AM Conne cti ng Office Connect H ubs Together Connecting Hubs Using 10BASE-2 (Coax) When using 10BASE-2 (Coax) cable, it is important that both ends of the segment are properly terminated with 50 Ohm terminators ( end pieces ) .
  • Page 26 Set all MDI/MDIX switches to MDI (in) except for the top hub (the one with port 8 not connected to another hub). This unused port can be connected to a workstation provided that the MDI/MDIX switch is set to MDIX (out). Figure 2-5 Correct Hub Connections Using 10BASE-T...

  • Page 27: S Pot Checks

    16710.bk : CREYRNET.FRM Page 11 Tuesday, October 7, 1997 11:38 AM Checking Hub Connections When you have connected your hubs, power them on. The Port Status LEDs for the ports you have used should be green for 10BASE-T, or off for 10BASE-2 (Coax).
  • Page 28 16710.bk : CREYRNET.FRM Page 12 Tuesday, October 7, 1997 11:38 AM 2-12 2: C H A P T E R R E A T I N G O U R E T W O R K...

  • Page 29: B O U T

    3Com’s Transcend management applications support all of today’s ® platforms and manage a wide variety of 3Com products. This gives you total control over your entire 3Com network from a single management station. For further information about which Transcend management application can benefit your growing network, call your local sales office, see “3Com...

  • Page 30: Why Manage Your Hub

    16710.bk : ABOUTMAN.FRM Page 2 Tuesday, October 7, 1997 11:38 AM 3: A H A P T E R B O U T E T W O R K A N A G E M E N T information through a variety of services. This appendix describes these services.”...

  • Page 31: Connecting To The Hub And Managing

    16710.bk : ABOUTMAN.FRM Page 3 Tuesday, October 7, 1997 11:38 AM Configure security for the hub, including setting up new users and specifying what equipment is allowed to communicate through the hub. Set up resilience; specify a backup connection that takes over should a main connection fail.

  • Page 32: Managing Through The Console Port

    16710.bk : ABOUTMAN.FRM Page 4 Tuesday, October 7, 1997 11:38 AM 3: A H A P T E R B O U T E T W O R K A N A G E M E N T Managing Through the Console Port This section describes how to connect and set up equipment to communicate with the hub through the console port (called out-of-band management).
  • Page 33 16710.bk : ABOUTMAN.FRM Page 5 Tuesday, October 7, 1997 11:38 AM Using Quick Config Manager C onnect one end of the null modem cable to the console port on the hub, and the other to the serial (RS232) port on your management station. Quick Config Manager uses SLIP to manage your hub.

  • Page 34: Managing Over The Network

    If using IPX, you do not need to enter IPX information for the hub. Using an IP/IPX-based Network Management Application 3Com’s Transcend network management applications enable you to get the best out of your hub. Any IP/IPX-based network management application can manage the hub.

  • Page 35: Remote Management Service

    16710.bk : ABOUTMAN.FRM Page 7 Tuesday, October 7, 1997 11:38 AM Remote Management Service Refer to Chapter 5 for information on performing additional management using the VT100 management interface. Remote Management Service Th e OfficeConnect hub has a special modem dial-out feature which can be set up by your supplier to inform them when your hub or network is operating incorrectly.
  • Page 36 16710.bk : ABOUTMAN.FRM Page 8 Tuesday, October 7, 1997 11:38 AM 3: A H A P T E R B O U T E T W O R K A N A G E M E N T...

  • Page 37: A N A G I N G

    16710.bk : MANAGING.FRM Page 1 Tuesday, October 7, 1997 11:38 AM A N A G I N G S I N G This chapter describes how to install and use Quick Config Manager. For an overview of what you can do when managing the hub, see Chapter 3 .

  • Page 38: Installation Procedure

    16710.bk : MANAGING.FRM Page 2 Tuesday, October 7, 1997 11:38 AM 4: M H A P T E R A N A G I N G O U R S I N G Installation Procedure Quick Config Manager can be installed on its own or on to a workstation that already has other Transcend®...

  • Page 39: Configuring Multiple Hubs

    16710.bk : MANAGING.FRM Page 3 Tuesday, October 7, 1997 11:38 AM If you are going to manage over a serial link from your management station, Quick Config Manager uses COM1 as the default serial port. You can change this by editing the following line under the [slip] subsection of the QUICKMGR.INI file: SerialAttrib=COM1:9600,n,8,1 Editing it to...
  • Page 40 16710.bk : MANAGING.FRM Page 4 Tuesday, October 7, 1997 11:38 AM 4: M H A P T E R A N A G I N G O U R S I N G U I C K O N F I G A N A G E R Figure 4-1 Quick Config Manager Window Map...
  • Page 41 16710.bk : MANAGING.FRM Page 5 Tuesday, October 7, 1997 11:38 AM Quick Config Manager Window Map...

  • Page 42: Accessing The Hub

    16710.bk : MANAGING.FRM Page 6 Tuesday, October 7, 1997 11:38 AM 4: M H A P T E R A N A G I N G O U R S I N G Accessing the Hub The OfficeConnect Hub 8/TP M uses community strings as a security measure, to check management access to the hub.

  • Page 43: Giving The Hub An Ip Address

    16710.bk : MANAGING.FRM Page 7 Tuesday, October 7, 1997 11:38 AM You can also use the Community/Polling screen to: Automatically di splay a graphical representation of the hub every time you start Q uick Config Manager. Define how regularly the graphical representation of the hub is updated.
  • Page 44 16710.bk : MANAGING.FRM Page 8 Tuesday, October 7, 1997 11:38 AM 4: M H A P T E R A N A G I N G O U R S I N G To display the IP Setup dialog box and view or configure the hub’s address settings: From the Configure menu, select IP Setup ...
  • Page 45 Support Contract — Provides a box for you to type the ID number of any technical support contract you may have. The default entries for these three fields is ‘3Com’ . These defaults are just place holders and should be changed for your information as soon as possible.
  • Page 46 16710.bk : MANAGING.FRM Page 10 Tuesday, October 7, 1997 11:38 AM 4-10 4: M H A P T E R A N A G I N G O U R S I N G Subnet Mask — Provides a box for you to type the subnet mask for the I P address.

  • Page 47: Resetting The Hub

    16710.bk : MANAGING.FRM Page 11 Tuesday, October 7, 1997 11:38 AM Resetting the Hub Resetting the hub simulates switching the hub off and on. You may want to reset the hub if you want Apply any changes made to the hub’s IP configuration.

  • Page 48: Viewing The Hub

    16710.bk : MANAGING.FRM Page 12 Tuesday, October 7, 1997 11:38 AM 4-12 4: M H A P T E R A N A G I N G O U R S I N G Viewing the Hub Quick Config Manager can display a graphical representation of the hub you are managing, with: The ports color coded to show their condition The Alert LED reflecting its physical state...

  • Page 49: Displaying Information About The Hub

    16710.bk : MANAGING.FRM Page 13 Tuesday, October 7, 1997 11:38 AM Displaying Information About the Hub Quick Config Manager enables you to display detailed information about the hub. This information is stored within the hub in a list, called a MIB (Management Information Base).
  • Page 50 16710.bk : MANAGING.FRM Page 14 Tuesday, October 7, 1997 11:38 AM 4-14 4: M H A P T E R A N A G I N G O U R S I N G sysDescr Shows the system description supplied by the hub’s Management Agent software.

  • Page 51: Setting Up The Alert Led

    16710.bk : MANAGING.FRM Page 15 Tuesday, October 7, 1997 11:38 AM Setting Up the Alert LED The Alert LED can warn you of potential problems with your network. Quick Config Manager allows you to: Test the Alert LED. Configure the conditions that cause the Alert LED to light.
  • Page 52 16710.bk : MANAGING.FRM Page 16 Tuesday, October 7, 1997 11:38 AM 4-16 4: M H A P T E R A N A G I N G O U R S I N G Figure 4-6 Alerts Panel Configure the conditions for the Alert LED. Click on OK when the Alert LED setup is complete.
  • Page 53 16710.bk : MANAGING.FRM Page 17 Tuesday, October 7, 1997 11:38 AM Coax Port Partition Enabled / Disabled Allows you to specify whether the Alert LED lights if the coaxial port becomes partitioned. If this condition is resolved after causing the Alert LED to light, the LED goes off (it stays lit if other conditions also caused it to light).

  • Page 54: Monitoring

    16710.bk : MANAGING.FRM Page 18 Tuesday, October 7, 1997 11:38 AM 4-18 4: M H A P T E R A N A G I N G O U R S I N G Network Utilization High / Med / Low / Disabled Allows you to specify whether the Alert LED lights if a certain level of network utilization is exceeded for five seconds.

  • Page 55: Monitoring Activity And Errors Statistics

    16710.bk : MANAGING.FRM Page 19 Tuesday, October 7, 1997 11:38 AM Monitoring Activity and Errors Statistics Quick Config Manager allows you to display the total network activity and errors seen by a port or the hub (all ports) in any one time period. To display the Activity/Errors graph for a port: Double-click on the port for which you want to display the Activity/Errors graph.
  • Page 56 16710.bk : MANAGING.FRM Page 20 Tuesday, October 7, 1997 11:38 AM 4-20 4: M H A P T E R A N A G I N G O U R S I N G Total Errors Shows the total number of errors that have occurred per poll, it should be a small percentage of the readable frames figure.

  • Page 57: Frame Types Statistics

    16710.bk : MANAGING.FRM Page 21 Tuesday, October 7, 1997 11:38 AM Frame Types Statistics Quick Config Manager allows you to display the total network frame types seen by a port or the hub (all ports) in any one time period. Any frames producing errors are not included, these are shown in the Activity/Errors graph, see “Monitoring Activity and Errors Statistics”...

  • Page 58: Network Traffic Statistics

    16710.bk : MANAGING.FRM Page 22 Tuesday, October 7, 1997 11:38 AM 4-22 4: M H A P T E R A N A G I N G O U R S I N G Unicast Shows the percentage of readable frames received that are addressed to single devices.

  • Page 59: Network Errors Statistics

    16710.bk : MANAGING.FRM Page 23 Tuesday, October 7, 1997 11:38 AM Figure 4-9 Network Traffic Graph Monitoring Network Errors Statistics Quick Config Manager allows you to display the numbers of frames with errors seen by a port or the hub (all ports) in any one time period. To display the Network Errors graph for a port: Double-click on the port for which you want to display the Network Errors graph.
  • Page 60 16710.bk : MANAGING.FRM Page 24 Tuesday, October 7, 1997 11:38 AM 4-24 4: M H A P T E R A N A G I N G O U R S I N G U I C K O N F I G A N A G E R FCS Errors Shows the number of frames received with checksum errors that do not have alignment...

  • Page 61: Configuring A Port

    16710.bk : MANAGING.FRM Page 25 Tuesday, October 7, 1997 11:38 AM Check the cable routing and reroute any cabling which may be affected by other noise sources. Late Events Shows the number of frames for which a collision was detected after the valid packet minimum time.
  • Page 62 16710.bk : MANAGING.FRM Page 26 Tuesday, October 7, 1997 11:38 AM 4-26 4: M H A P T E R A N A G I N G O U R S I N G You can configure a port so that it sends a trap to a network management application when the status of the link changes (for example, if a device is connected to or disconnected from the port), or...
  • Page 63 16710.bk : MANAGING.FRM Page 27 Tuesday, October 7, 1997 11:38 AM Select either Enable or Disable for Link Traps, Partition Traps, and Learn Stations. Click on OK . In the Repeater Port Info panel: Media Type Shows the type of media connected to the port.

  • Page 64: Hub Security

    U I C K O N F I G A N A G E R 3Com’s security is very advanced but easy to set up. It works by learning in a number of ways what devices are communicating through its ports. You can configure the hub to react in two ways: Disconnect Unknown Device (DUD) —...

  • Page 65: Configuring Security At Port Level

    16710.bk : MANAGING.FRM Page 29 Tuesday, October 7, 1997 11:38 AM Configuring Security at Port Level To configure security for a port: From the View menu, select Zoom In to display the representation of the hub. Double-click on the port for which you want to configure security.
  • Page 66 16710.bk : MANAGING.FRM Page 30 Tuesday, October 7, 1997 11:38 AM 4-30 4: M H A P T E R A N A G I N G O U R S I N G MAC Address — Allows you to enter the MAC address for a device to be authorized to transmit through this port.

  • Page 67: Configuring Security At Hub Level

    16710.bk : MANAGING.FRM Page 31 Tuesday, October 7, 1997 11:38 AM Disable on Intrusion — Compares the source address of all frames received on the port to the authorized addresses for that port. If the source address of the incoming frame does not match the authorized addresses for this port, the port is disabled to prevent communication.
  • Page 68 16710.bk : MANAGING.FRM Page 32 Tuesday, October 7, 1997 11:38 AM 4-32 4: M H A P T E R A N A G I N G O U R S I N G Figure 4-13 Security Configuration Panel Quick Config Manager displays the Security Configuration panel , as shown in Figure 4-13 .

  • Page 69: Resilience

    16710.bk : MANAGING.FRM Page 33 Tuesday, October 7, 1997 11:38 AM Resilience You can make your network more robust by adding resilience to it. When a link fails, as shown in Figure 4-14 , all communication between equipment on each side of the link is lost.

  • Page 70: Setting Up A Resilient Link Pair

    Remember to follow hub connection requirements; always connect an MDIX port to an MDI port, setting the MDIX switch as appropriate, see “Connecting Hubs Using 10BASE-T” on page 2-10 . When your network is in use, the hub that has been used to set up the resilient link pair, monitors the state of both the main link and the standby link.
  • Page 71 8 and the MDI/MDIX switch. If port 8 is already in use, you may need to use special crossover cabling for any further links you wish to make.
  • Page 72 16710.bk : MANAGING.FRM Page 36 Tuesday, October 7, 1997 11:38 AM 4-36 4: M H A P T E R A N A G I N G O U R S I N G U I C K O N F I G A N A G E R In the Resilience Links panel: Main Port Shows the port number of the main link.

  • Page 73: Using The Hub To Monitor Other Devices

    16710.bk : MANAGING.FRM Page 37 Tuesday, October 7, 1997 11:38 AM Delete Removes the resilient link pair from the table when an entry in the resilience table is selected. If you delete an entry in the resilience table, the current active link remains enabled and the current standby link is cancelled.
  • Page 74 16710.bk : MANAGING.FRM Page 38 Tuesday, October 7, 1997 11:38 AM 4-38 4: M H A P T E R A N A G I N G O U R S I N G In the General Info dialog box, choose the WorkGroup category .

  • Page 75: Additional Management

    16710.bk : MANAGING.FRM Page 39 Tuesday, October 7, 1997 11:38 AM When you have added a device to the WorkGroup Monitor table, its entry is color-coded: Green — Device being polled and communicating. Red — Device being polled but is not communicating.
  • Page 76 16710.bk : MANAGING.FRM Page 40 Tuesday, October 7, 1997 11:38 AM 4-40 4: M H A P T E R A N A G I N G O U R S I N G U I C K O N F I G A N A G E R...

  • Page 77: A M Uvt100

    16710.bk : MANVT100.FRM Page 1 Tuesday, October 7, 1997 11:38 AM D D I T I O N A L VT100 S I N G This chapter describes the additional management tasks you can perform using VT100®. For an overview of the management you can perform and the different ways you can make a management connection to the hub, see Chapter 3 .

  • Page 78: Screen Components

    16710.bk : MANVT100.FRM Page 2 Tuesday, October 7, 1997 11:38 AM 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G Screen Components The main part of a typical screen contains several different types of item.

  • Page 79: Special Keystrokes

    16710.bk : MANVT100.FRM Page 3 Tuesday, October 7, 1997 11:38 AM Special Keystrokes As well as the keystrokes previously described, there are several other keystrokes for controlling the VT100 interface. These keystrokes allow you to move the cursor around the screen, enter information and move from one screen to another: [Tab] Moves the cursor from one field to...

  • Page 80: Repeater, Unit And Port Screens

    Repeater — If you manage at Repeater level, you are managing or viewing the device as a whole. Any stackable products, for example 3Com’s SuperStack ® range, can be logically stacked so that all the products form a single, logical repeater.
  • Page 81 16710.bk : MANVT100.FRM Page 5 Tuesday, October 7, 1997 11:38 AM S creen Map Figure 5-1 VT100 Screen Map...

  • Page 82: Getting Started

    16710.bk : MANVT100.FRM Page 6 Tuesday, October 7, 1997 11:38 AM 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G Getting Started This section explains logging on to the VT100 management facility, displaying the main menu and...

  • Page 83: Logon

    16710.bk : MANVT100.FRM Page 7 Tuesday, October 7, 1997 11:38 AM If you cannot see the main banner or it displays incorrectly, it may be that: Your terminal is not configured as a VT100 terminal. Check that your terminal is set up to operate with the same parameters that the hub’s console port uses.
  • Page 84 16710.bk : MANVT100.FRM Page 8 Tuesday, October 7, 1997 11:38 AM 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G If you are logging on for the first time (after installation or initialization), use one of the default user names and passwords shown in the following...

  • Page 85: Main Menu

    16710.bk : MANVT100.FRM Page 9 Tuesday, October 7, 1997 11:38 AM Main Menu The Main Menu, as shown in Figure 5-4 , is used for accessing the various VT100 screens. Figure 5-4 Main Menu If you are using the management facility for the first time, we suggest that you: Set up logons for any other users and assign each user an appropriate security level.

  • Page 86: Configuring And Viewing Setup Information

    16710.bk : MANVT100.FRM Page 10 Tuesday, October 7, 1997 11:38 AM 5-10 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G Configuring and Viewing Setup Information The Management Setup screen, as shown in...
  • Page 87 16710.bk : MANVT100.FRM Page 11 Tuesday, October 7, 1997 11:38 AM SLIP Address SLIP (Serial Line Internet Protocol) allows IP to run over the console port instead of the network. SLIP allows you to use out-of-band Telnet or SNMP management, either locally or remotely through a modem.

  • Page 88: Setting Up Traps

    16710.bk : MANVT100.FRM Page 12 Tuesday, October 7, 1997 11:38 AM 5-12 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G Status Enabled / Disabled This field shows whether the data link protocol is enabled.

  • Page 89: Connecting A Modem To The Console Port

    16710.bk : MANVT100.FRM Page 13 Tuesday, October 7, 1997 11:38 AM IP or IPX Address Enter the IP or IPX address of the remote network management station to which SNMP traps should be sent. Community String The community string allows a very simple method of authentication between the hub and the remote network management station.
  • Page 90 16710.bk : MANVT100.FRM Page 14 Tuesday, October 7, 1997 11:38 AM 5-14 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G Figure 5-7 Console Port Setup Screen If you alter the console port settings and select OK , you terminate any existing session using the console...

  • Page 91: Configuring Local Security

    16710.bk : MANVT100.FRM Page 15 Tuesday, October 7, 1997 11:38 AM Flow Control NONE / XON/XOFF / RTS - CTS Bidirectional / RTS - CTS Unidirectional Select the flow control option that corresponds with your terminal or modem. Speed Auto-Config / 1200 / 2400 / 4800 / 9600 / 19200 Select the baud rate for your terminal or modem.
  • Page 92 16710.bk : MANVT100.FRM Page 16 Tuesday, October 7, 1997 11:38 AM 5-16 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G The access levels are defined as: Monitor —...

  • Page 93: Configuring Users

    16710.bk : MANVT100.FRM Page 17 Tuesday, October 7, 1997 11:38 AM Configuring Users Creating Users The Create User screen, as shown in Figure 5-9 , is used to add new users. This option is available only for users with security access level. There can be up to 10 users, including the three default users.

  • Page 94: Editing Users

    16710.bk : MANVT100.FRM Page 18 Tuesday, October 7, 1997 11:38 AM 5-18 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G Editing Users The Edit User screen, as shown in Figure 5-10 , is used to change your own password or community...

  • Page 95: Deleting Users

    16710.bk : MANVT100.FRM Page 19 Tuesday, October 7, 1997 11:38 AM Deleting Users The Delete Users screen, as shown in Figure 5-11 , is used to remove users from the User List. The User List shows all of the users configured for the hub. This option is available only for users with security access level.

  • Page 96: Viewing Internal Version Numbers

    16710.bk : MANVT100.FRM Page 20 Tuesday, October 7, 1997 11:38 AM 5-20 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G The Office Connect Hub 8/TP M must have an IP or IPX address configured for it, to enable it to receive responses from the device it is polling.

  • Page 97: Downloading A Software Upgrade

    This option is available only for users with security access level. Figure 5-14 Software Upgrade Screen When 3Com issues a new version of the hub SmartAgent® software, you can obtain the software image from 3Com bulletin board services, see “3Com provides easy access to technical support...
  • Page 98 16710.bk : MANVT100.FRM Page 22 Tuesday, October 7, 1997 11:38 AM 5-22 5: A H A P T E R D D I T I O N A L A N A G E M E N T S I N G information through a variety of services.

  • Page 99: Isolating A Problem

    16710.bk : PROBSOLV.FRM Page 1 Tuesday, October 7, 1997 11:38 AM R O B L E M The Office Connect® Hub 8/T PM has been designed to aid you when detecting and solving possible problems with your network. These problems are rarely serious, the cause is usually a disconnected or damaged cable, or incorrect configuration.

  • Page 100: Problems When Using Your Hub

    “Connecting OfficeConnect Hubs Together” on page 2-8 . With 10BASE-T it is likely an MDI/MDIX switch is set incorrectly. With 10BASE-2 (Coax) it is likely a terminator ( end piece ) is not fitted properly; this would cause the Coax Port...

  • Page 101: Problems When Using Quick Config Manager

    16710.bk : PROBSOLV.FRM Page 3 Tuesday, October 7, 1997 11:38 AM Problems When Using Quick Config Manager You cannot access the hub. For a successful local management connection, you need to use a standard null modem cable, and have the hub’s console port set to 9600 baud (or autoconfiguration enabled), the serial connection type set to ‘Terminal’...

  • Page 102: Problems When Using An Ip/Ipx- Ba Sed Ma Nagement Ap Plication

    16710.bk : PROBSOLV.FRM Page 4 Tuesday, October 7, 1997 11:38 AM 6: P H A P T E R R O B L E M O L V I N G Check the settings on your terminal or emulator. The parity must be set to ‘...
  • Page 103 16710.bk : PROBSOLV.FRM Page 5 Tuesday, October 7, 1997 11:38 AM Problems When Using an IP/IPX- ba sed Ma nagement Ap plication The IP/IPX-based management application can no longer access the device. Check that Community-SNMP access is enabled, see “Configuring Local Security” on page 5-15 . Check that the port through which you are trying to access the hub has not been disabled.
  • Page 104 16710.bk : PROBSOLV.FRM Page 6 Tuesday, October 7, 1997 11:38 AM 6: P H A P T E R R O B L E M O L V I N G...

  • Page 105: Dimensions And Operating Environment

    16710.bk : DIMSNSTA.FRM Page 1 Tuesday, October 7, 1997 11:38 AM I M E N S I O N S Dimensions and Operating Environment Figure A-1 Dimensions And Operating Environment For The Hub BABT Approval (for U.K. Users Only) The OfficeConnect® Hub 8/TPM is covered by Oftel General Approval, NS/G/12345/J/100003, for indirect connection to a public telecommunications system.

  • Page 106: Cabling

    16710.bk : DIMSNSTA.FRM Page 2 Tuesday, October 7, 1997 11:38 AM A: D P P E N D I X I M E N S I O N S T A N D A R D S A N D Cabling 10BASE-T Figure A-2 Pin Numbering For 10BASE-T...

  • Page 107: Console Port

    16710.bk : DIMSNSTA.FRM Page 3 Tuesday, October 7, 1997 11:38 AM Cabling Console Port Figure A-5 Pin Numbering For Serial Connection Examples of Null Modem Cables You Can Use Figure A-6 Example Of Null Modem Cabling For 9 Pin Workstation Figure A-7 Example Of Null Modem Cabling For 25 Pin Workstation...
  • Page 108 16710.bk : DIMSNSTA.FRM Page 4 Tuesday, October 7, 1997 11:38 AM A: D P P E N D I X I M E N S I O N S T A N D A R D S A N D Modem Cable Figure A-8 Modem Cabling For 25 Pin Modem A B L I N G...

  • Page 109: Ipa N Dipx A

    16710.bk : IPADDRES.FRM Page 1 Tuesday, October 7, 1997 11:38 AM IPX A A N D IP Addresses A world-wide network such as the Internet needs a globally-accepted method of identifying individual devices (workstations and network equipment). Devices on the Internet are assigned unique addresses.

  • Page 110: Obtaining A Network Number

    16710.bk : IPADDRES.FRM Page 2 Tuesday, October 7, 1997 11:38 AM B: IP IPX A P P E N D I X A N D D D R E S S E S Obtaining a Network Number There are three organizations responsible for allocating network numbers.

  • Page 111: How Ip Addresses Work

    16710.bk : IPADDRES.FRM Page 3 Tuesday, October 7, 1997 11:38 AM Asia Pacific Network Information Centre (APNIC-DOM) Attention: Asia Pacific Network Information Centre (APNIC-DOM) c/o Computer Centre University of Tokyo 2-11-16 Yayoi Bunkyo-ku, Tokyo 113 Japan Admin. Contact: Nakayama, Masaya (MN89) Telephone: +81 3 3812 2111 ext2720 e-mail:...
  • Page 112 16710.bk : IPADDRES.FRM Page 4 Tuesday, October 7, 1997 11:38 AM B: IP IPX A P P E N D I X A N D D D R E S S E S Class A. The highest order bit is set to 0, giving a seven-bit network number and a 24-bit device address.

  • Page 113: Assigning Ip Addresses To A Small, Contained

    16710.bk : IPADDRES.FRM Page 5 Tuesday, October 7, 1997 11:38 AM The bits of the subnet mask are set to 1 if the device should treat the corresponding bit in the IP address as part of the original network number or as part of the subnet number.

  • Page 114: Ipx Addresses

    16710.bk : IPADDRES.FRM Page 6 Tuesday, October 7, 1997 11:38 AM B: IP IPX A P P E N D I X A N D D D R E S S E S IPX Addresses If you are using the IPX protocol, the OfficeConnect® Hub 8/TPM is allocated an IPX address automatically by the local IPX router or NetWare File Server.

  • Page 115: Online Technical Services

    Magazine, and more. 3Com Bulletin Board Service 3ComBBS contains patches, software, and drivers for all 3Com products, as well as technical articles. This service is available through analog modem or digital modem (ISDN) 24 hours a day, 7 days a week.

  • Page 116: 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, 7 days a week. Call 3ComFacts using your Touch-Tone telephone using one of these international access numbers:...

  • Page 117: 3Comforum On Compuserve Online Service

    3ComForum on CompuServe Online Service 3ComForum is a CompuServe-based service contain- ing patches, software, drivers, and technical articles about all 3Com products, as well as a messaging section for peer support. To use 3ComForum, you need a CompuServe account. To use 3ComForum: Log on to CompuServe.

  • Page 118: Support From Your Network Supplier

    Details about recent configuration changes, if applicable If you are unable to contact your network supplier, see the following section on how to contact 3Com. Support from 3Com If you are unable to receive support from your network supplier, technical support contracts are available from 3Com.
  • Page 119 16710.bk : PRODRANG.FRM Page 5 Tuesday, October 7, 1997 11:38 AM Regional Sales Office Telephone Number 3Com Benelux B.V. Belgium 32 2 725 0202 Netherlands 31 30 6029700 3Com Canada Calgary 403 265 3266 Montreal 514 683 3266 Ottawa 613 566 7055...

  • Page 120: Returning Products For Repair

    E C H N I C A L U P P O R T Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain a Return Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense.
  • Page 121 N D E X Numerics 1-2, 2-5 10BASE-2 connecting hubs segment 10BASE-T 1-2, 2-4, 2-5, A-2 connecting hubs 2-10 3Com Bulletin Board Service (3ComBBS) 3Com sales offices 3Com URL 3ComFacts 3ComForum about network management access levels 5-17 manager 5-16 monitor...
  • Page 122 16710.bk : 16710.IX Page 120 Tuesday, October 7, 1997 11:38 AM 5-13 a modem to the console port passwords management router workstations users connecting hubs together values, note using 10BASE-2 (Coax) Delete Users screen 2-10 using 10BASE-T device connections general information checking 2-11 IP address...
  • Page 123 4-27 traps your hub list box local area network Quick Config Manager windows Local Security screen 5-15 VT100 screens login violation 4-17 MDI/MDIX switch logoff media type logon 1-3, 4-13 1-2, 2-8 4-25, 5-10 4-33 4-10 application 3-5, 3-6 2-10, 4-34...
  • Page 124 16710.bk : 16710.IX Page 122 Tuesday, October 7, 1997 11:38 AM 4-13 MIB II dialog box modem 1-4, 5-13, A-4 null modem cable modem dial-out 4-17 monitor failure 4-18 monitoring OfficeConnect hub 4-37 other devices online technical services mounting operating environment multicast frames 4-22 operating system...
  • Page 125 SLIP 1-4, 4-10, 5-11 address 4-10, 5-11 target address 4-10, 5-11 parameters technical support subnet mask 4-10, 5-11 3Com URL SNMP 1-3, 4-13 bulletin board service 5-17 community string fax service 5-16 enabling/disabling access network suppliers software...
  • Page 126 16710.bk : 16710.IX Page 124 Tuesday, October 7, 1997 11:38 AM temperature changing password Terminal creating 3-3, 3-5 terminal emulator default connecting deleting 5-15 terminal speed password terminology utilization 4-16 testing the Alert LED TFTP server address 5-22 throttle 5-13 version number too long errors 4-24...
  • Page 127 3Com shall not be responsible for any software, firmware, information, or memory data of Customer contained in, stored on, or integrated with any products returned to 3Com for repair under warranty or not. SOFTWARE: 3Com warrants that the software licensed...
  • Page 128 OTHER PERSON TO 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...
  • Page 129 16710.bk : EMCSTATE.FRM Page 127 Tuesday, October 7, 1997 11:38 AM EMC S T A T E M E N T S FCC STATEMENT: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules.
  • Page 130 16710.bk : EMCSTATE.FRM Page 128 Tuesday, October 7, 1997 11:38 AM...

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