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3Com 3C16710 Switch User Manual

1. Bitmap Off minutes Graphts 20_ seconds 4 30 General Info Finance Security Configuration Ed Invoke zoom view on start up General Info Finance 4 14 Category Alerts 4 36 Category WorkGroup Monitor General Info Finance Category 4 33 4 7 Resilience Links 412 ee re le 22 Laser men neges IP Address 191 1 1 2 Mib 11 E sysDescr 3Com OfficeConnect Hub6M SW Contact ABC Suppliers Subnet 255 255 255 0 Fu version 2 00 sysObjectld 1 3 6 1 4 1 43 1 8 21 Support 3 4297abe em pe Hesinice sysUpTime 0 hrs 4 mins 40 secs Out Of Band Configuration ata sysContact ABC Suppliers 3c4297abe Serial Line Router IP N sysName Finance IP Address 192 168 101 3 Address 1911171 sysLocation Finance department Den 255 255 255 0 Messe sysServices physical To see more options click on the category list at left amp 16710 bk MANAGING FRM Page 6 Tuesday October 7 1997 11 38 AM 4 6 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Transcend Quick Configuration Manager Finance Eile View ehe Window Help Community Polling IP Setup General Info Reset Initialize Community String Read Write Accessing the Hub The Offi
2. 5 4 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT100 Repeater Unit and Port Screens Screen Map There are three levels at which you can manage the Figure 5 1 shows how the menus and screens are hub using VT100 related to each other The numbers denote the pages Repeater If you manage at Repeater level you are a chapter where the screen s description can be ound 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 m Unit If you manage at Unit level you are p managing or viewing the hub amp m Port If you manage at Port level you set up parameters and examine statistics for individual ports This allows you to manage individual users or small workgroups 3Com s OfficeConnect range can be physically stacked but not logically stacked Each unit remains a separate repeater regardless of how it is connected to other OfficeConnect units Therefore managing the hub at Repeater level is the same as managing it at Unit level amp 16710 bk MANVTI100 FRM Page 5 Tuesday October 7 1997 11 38 AM Screen Map 5 5 Main 59 a Ea a Main 56 lt Wake up Menu togon Banner interface Repeater Repeater Management Statistics User Access Local Repeater Levels Security Setup Status Create Repeater User Resilience Management Trap Delete Setup Setup Users Uni Statistics
3. Some countries states or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers so the above limitations and exclusions may be limited in their application to you This warranty gives you specific legal rights which may vary depending on local law GOVERNING LAW This Limited Warranty shall be governed by the laws of the state of California 3Com Corporation 5400 Bayfront Plaza Santa Clara CA 95052 8145 408 764 5000 18th March 1996 amp 16710 bk EMCSTATE FRM Page 127 Tuesday October 7 1997 11 38 AM EMC STATEMENTS VCCI STATEMENT TOPE FIEHBNERE EBEHENIKTOBRLIHEK SUN TE AenNZR SHRUBS A TEER TORRES H Ne LARUE RESERBSAEMHRMS VCC1 BEKBALTEV ET LOL ABBE VA FLEV AY RERKMRLEICRAK ASL RR BBFORRERBIENBUET DRREBIGEOTELUVNURNELTTEN 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 These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipmen
4. Shows the ports selected to be configured Click on a port to select it from the list or perform a multiple selection Select gt Adds the selected ports in the Available list to the Selected list lt Remove Removes the selected ports from the Selected list to the Available list All gt gt Adds all the available ports to the Selected list lt lt All Removes all the selected ports from the Selected list DUD and Need To Know are the same as for port level see Configuring Security at Port Level on page 4 29 amp 16710 bk MANAGING FRM Page 33 Tuesday October 7 1997 11 38 AM Resilience 4 33 If a spare link could automatically pick up when the Resilience broken link failed the network would appear to function normally to the user At worst a few packets You can make your network more robust by addin y y g would be corrupted or lost resilience to it This is the concept of resilience One link is on standby called the standby link waiting to take over if another link called the main link fails as shown in Figure 4 15 This pair is called a resilient link pair When a link fails as shown in Figure 4 14 all communication between equipment on each side of the link is lost It would be very inconvenient for a manager to physically reinstate the network immediately and important communication might be lost Standby link 4 a Main link Figure 4 15 A Resilient Link Pa
5. gt 16710 bk DIMSNSTA FRM Page 4 Tuesday October 7 1997 11 38 AM amp A 4 APPENDIX A DIMENSIONS STANDARDS AND CABLING Modem Cable OfficeConnect Hub 8 TPM Modem Console Port Serial Port 9 pin male 25 pin female Screen Shell Screen TxD TxD RxD RTS CTS DSR Ground DCD DTR Figure A 8 Modem Cabling For 25 Pin Modem Management Settings You need to set your management equipment to m Character size 8 m Stop bit 1 m Parity None gt t 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 The Internet then behaves like a virtual network using these assigned addresses when sending or receiving packets Internet addressing uses a 32 bit or 4 octet address field The bits that make up an Internet address are divided into two parts The first part identifies the network on which the device resides The second part identifies the device itself Devices attached to the same network must have the same number assigned to the network portion of the address but have different numbers assigned to the device portion of the address 16710 bk IPADDRES FRM Page 1 Tuesday October 7 1997 11 38 AM IP AND IPX ADDRESSES To ensure the uniqueness of Internet addresses they are assigned by three organization
6. piece with 10BASE 2 Coax cable to form a single segment as shown in Figure 2 4 Remember to terminate the two free ends of the segment by fitting terminators end pieces To disconnect a 10BASE 2 Coax cable twist each connector counter clockwise to unlock it and remove it Connecting OfficeConnect Hubs Together 2 9 a terminator N om At A N h 50 Ohm ty i 7 a terminator 10BASE 2 50 Ohm cable Maximum segment length is Minimum length is 185 meters 607 feet 0 5 meters 1 6 feet from terminator to terminator Figure 2 4 Correct Hub Connections Using 10BASE 2 Coax amp 16710 bk CREYRNET FRM Page 10 Tuesday October 7 1997 11 38 AM amp 2 10 CHAPTER 2 CREATING YOUR NETWORK Connecting Hubs Using 10BASE T You can connect hubs together with 10BASE T in a number of ways but for simplicity we recommend the following method 1 Starting from the bottom connect port 8 of the ice lower hub to port 7 ofthe hub immediately above MDIX out Repeat for each hub as shown in Figure 2 5 2 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 lt p a workstation provided that the MDI MDIX switch is Switch set to set to MDIX out MDI in Switch set to MDI in with RJ45 connectors Maximum length is 1
7. 16710 bk MANAGING FRM Page 9 Tuesday October 7 1997 11 38 AM Giving the Hub an IP Address 4 9 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 These three fields use the same information as sysContact and sysName in the MIB II panel so if you change them the fields in the MIB II panel change as well For information on the MIB Il panel see Displaying Information About the Hub on page 4 13 Network Configuration Shows the following IP Address Provides a box for you to type the IP address of the hub CAUTION To ensure that Quick Config Manager can always communicate with the hub the IP subnet 192 168 101 x is permanently assigned to the SLIP port in addition to the user configurable SLIP address Do not use this subnet for your Ethernet network gt 16710 bk MANAGING FRM Page 10 Tuesday October 7 1997 11 38 AM CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Subnet Mask Provides a box for you to type the subnet mask for the IP address Enable IP If disabled the IP fields for this dialog box are blanked and grayed out If enabled the IP fields are enabled allowing you to enter your IP information If you are not going to manage the hub over the network disable
8. General Info Initialize IP Setup peice IP Address Emergency i Subnet Contact ABC Suppliers Mask Support Conan 304297abe Enable IP Out Of Band Configuration Serial Line IP Address 192 168 101 3 IP Setup Router IP Address Device Configuration Network Configuration Configuring the device for IP will allow the device to communicate over an IP network 191 1 1 2 255 255 255 0 DJ 191 1 1 71 Easy Setup Figure 4 3 IP Setup Dialog Box And Easy Setup Option gt Enter the relevant information into the IP Setup diolog box or Easy Setup screens and click on OK to exit the screens Reset the hub for any changes to take effect see Resetting the Hub on page 4 11 After resetting the hub you may need to select Reset View from the File menu to restart communication using the new information CAUTION Always make a note of any changes you make to the settings on this screen There is an area at the front of this User Guide for doing this called Your Hub Addresses Device Configuration Shows the following Device Name Provides a box for you to type a name for the hub Use a descriptive name for example Finance Emergency Contact Provides a box for you to type the name and or telephone number of your network administrator possibly yourself who should be contacted in an emergency VV
9. View Station O Congestion FCS Errors Shows the number of frames received with checksum errors that do not have alignment errors FCS errors are most likely caused by noise on the cable and should be a very small percentage of the total traffic If it is not change the transceivers or network adapters of devices connected to the hub to see if this eliminates the problem FCS errors can also be caused by electrical interference from other cables or machinery Alignment Shows the number of frames received with alignment errors also known as framing errors Alignment errors should be a very small percentage of the total traffic They are likely to be caused by a fault at the transmitting device Locate the segment and if there is only one transmitting device for example fiber or 1OBASE T change the transceiver or adapter to see if this eliminates the problem Too Longs Shows the number of frames received that are greater than the maximum size permitted on Ethernet 1518 octets Short Events Shows the number of short events received A short event is a transmission of less than the minimum size permitted on Ethernet 64 octets Short events can indicate externally generated noise causing problems on the network 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 A late eve
10. apart Use the arrows at the top of the Quick Reference Guide to mark the position of the holes Fix the screws into the wall leaving their heads 3 mm 0 12 in clear of the wall surface Remove any connections to the hub and locate it over the screw heads When in line gently push the hub on to the wall and move it downwards to secure When making connections be careful not to push the hub up and off the wall CAUTION Only wall mount single hubs do not wall mount stacked hubs Connecting Workstations and Other Equipment to Your Hub WARNING Ensure you have read the Important Safety Information section carefully before you start ACHTUNG Versichern Sie sich da Sie den Abschnitt mit den wichtigen Sicherheitshinweisen gelesen haben bevor Sie das Ger t benutzen AVERTISSEMENT Assurer que vous avez lu soigneusement la section de L information de S curit Importante avant que vous commenciez CAUTION Do not power the hub off and on quickly Wait about 5 seconds between power cycles Connecting workstations and other equipment to your hub is easy Connect them using 10BASE T cables to any of the hub s eight 10BASE T RJ45 ports 10BASE T cables are very easy to use To connect a 10BASE T cable simply slot the connector into the relevant RJ45 port When the connector is fully in its latch locks it in place To disconnect the cable push the connector s latch in and remove it amp 16710 bk CREYR
11. 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 Up to three users can concurrently access the management facility using Telnet There is no limit to the number of SNMP remote management sessions Con Of ficeConnect Create User User Name james 1 Password Access Level Specialist u Community String james OK CANCEL Figure 5 9 Create User Screen Configuring Users 5 17 User Name Enter the name of the user The name can be up to 10 characters The user name is case sensitive Password Enter a password for this user The password can be up to 10 characters The password is case sensitive and is not displayed on the screen Access Level Monitor Secure Monitor Manager Specialist Security Enter an appropriate access level for the new user by cycling through the options using the space bar Community String By default the community string is the same as the User Name You can change this string to any text string of up to 32 characters The community string is used only for SNMP access The remote network manager must be configured to use the same community string Each user s community string must be unique amp 1671
12. Hanagement Hodule Hardware Revision 1 Flash EPROM Software Revision 2 88 PROH Software Revision 2 08 CANCEL Figure 5 13 Status Screen gt System Up Time This field indicates how long the hub has been running since the last reset Number of Resets This field shows the total number of resets since the hub was first installed or initialized Last Reset Type This field indicates the cause of the last reset Management Module Hardware Revision This is the hardware version of the management board inside the hub Flash EPROM Software Revision This is the version number of the software image stored in the management board s memory PROM Software Revision This is the version number of software stored in the Boot PROMs on the management board 16710 bk MANVT100 FRM Page 21 Tuesday October 7 1997 11 38 AM Downloading a Software Upgrade 5 21 Downloading a Software Upgrade The Software Upgrade screen as shown in Figure 5 14 is used to download a new version of the software image to the hub This option is available only for users with security access level 3Com OfficeConnect Software Upgrade File Name goch 1 64 51 1 Server Address 191 1 1 186 1 This operation will reset the device once the upgrade has been completed IP address format d d d d IPX address format AABBCCDD AABBCCDDEEFF OK CANCEL Figure 5 14 Software Upgrade Screen When 3Com issues a new versio
13. Sydne a A list of system hardware and software including sonen is revision levels China 8610 68492568 Beijing m Details about recent configuration changes if 86 21 63740220 Ext 6115 Shanghai applicable Hong Kong 852 2501 1111 India 91 11 644 3974 Indonesia 6221 572 2088 If you are unable to contact your network supplier Tan 81 6 536 3303 Osaka see the following section on how to contact 3Com 81 3 3345 7251 Tokyo Korea 822 2 319 4711 Malaysia 60 3 732 7910 Support from 3Com New Zealand 64 9 366 9138 Phillippines 632 892 4476 If you are unable to receive support from your Singapore 65 538 9368 network supplier technical support contracts are Taiwan 886 2 377 5850 Thailand 662 231 8151 4 available from 3Com P P amp 16710 bk PRODRANG FRM Page 5 Tuesday October 7 1997 11 38 AM Support from 3Com C 5 Regional Sales Office Telephone Number Regional Sales Office Telephone Number 3Com Benelux B V Belgium Netherlands 3Com Canada Calgary Montreal Ottawa Toronto Vancouver 3Com European HQ 3Com France 3Com GmbH Austria Czech Republic Slovak Republic Germany Central European HQ Hungary Poland Switzerland 3Com Ireland 32 2 725 0202 31 30 6029700 403 265 3266 514 683 3266 613 566 7055 416 498 3266 604 434 3266 49 89 627320 33 1 69 86 68 00 43 1513 4323 420 2 21845 800 49 30 34 98790 Berlin 49 89 627320 Munich 36 1 250 83 41 48 22 6451351 41 31 9
14. amp 16710 bk MANVTI100 FRM Page 20 Tuesday October 7 1997 11 38 AM amp CHAPTER 5 ADDITIONAL MANAGEMENT USING VT100 The OfficeConnect Hub 8 TPM must have an IP or IPX address configured for it to enable it to receive responses from the device it is polling Target Address Enter the IP or IPX address of the device to poll If there are multiple instances of the Remote Poll screen they share the same Target Address This may happen if there are multiple Telnet sessions or a console port session and a Telnet session The last address entered is the address that is polled Round Trip Time This is the interval in milliseconds between the time the last frame was sent to the target device and the time a response was received by the hub If there is no response within a few seconds no reply is shown Also displayed is the number of router hops and if set the time to live for the frame The hub can be configured to automatically poll several devices at regular intervals and report back to an IP IPX based network management application if there is no response Viewing Internal Version Numbers The Status screen as shown in Figure 5 13 shows information about the hub gt Make a note of this information as your supplier may need to know it should you contact them with a problem on OfficeConnect Status System Up Time seconds 2387 Number of Resets 1 amp Last Reset Type Command Version Numbers
15. standy link 4 33 starting 4 2 Quick Config Manager 4 2 the VT100 management facility 5 6 statistics activity and errors 4 19 frame types 4 21 network errors 4 23 network traffic 4 22 Status screen 5 20 stop bit console port setup 5 15 straight through 2 4 A 2 subnet mask 4 10 5 10 B 4 subnets B 4 supplier support tool 3 7 support contract 4 9 system up time 5 21 T target address 5 20 technical support 3Com URL C 1 bulletin board service C 1 fax service C 2 network suppliers C 4 product repair C 6 using CompuServe C 3 technology overview 1 2 Telnet 1 4 3 1 accessing facility using 3 6 control keys 5 3 enabling disabling access 5 16 16710 bk 16710 IX Page 124 Tuesday October 7 1997 11 38 AM emperature A 1 Terminal 3 5 erminal emulator 3 3 3 5 connecting 3 5 erminal speed 5 15 erminology 1 2 esting the Alert LED 4 16 TFTP server address 5 22 hrottle 5 13 oo long errors 4 24 otal errors 4 20 TP 1 2 Transcend Quick Configuration Manager 3 1 rap 4 26 Trap Setup screen 5 12 raps 1 3 4 25 4 34 4 37 community string 5 13 introduction to 5 12 IP address 5 13 throttle 5 13 trouble shooting 6 1 twisted pair 1 2 U unicast frames 4 22 upgrading software 5 21 URL C 1 user guide conventions 2 user interface overview of 5 1 user name 5 17 users access level 5 17 changing community string 5 18 changing password 5 18 creating 5 17 default 5 8 deleting 5 19 password 5 17 utiliz
16. 38 AM Monitoring 4 21 Frame Types Statistics Transcend Quick Configuration Manager Finance Mara Configure Window Help Quick Config Manager allows you to display the total Activity Errors network frame types seen by a port or the hub all ne ports in any one time period Any frames producing Errors errors are not included these are shown in the Activity Errors graph see Monitoring Activity and Errors Statistics on page 4 19 To display the Frame Types pie chart for a port Port Confi uration Unit 1 Port 1 Repeater Port Info 1 Double click on the port for which you want to Media Type Twisted Pair display the Frame Types pie chart Bee Link State Present 2 In the Port dialog box choose the Info category Anable Disable O 3 In the Repeater Port Info panel select the Frames O Enors check box View Station 4 Click on OK me O Congestion Multicast To display the Frame Types pie chart for the hub m Broadcast m From the View menu select Frame Types Quick Config Manager displays the Frame Types pie chart as shown in Figure 4 8 Figure 4 8 Frame Types Pie Chart amp amp amp 16710 bk MANAGING FRM Page 22 Tuesday October 7 1997 11 38 AM 4 22 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Unicast Shows the percentage of readable frames Network Traffic Statistics received that are addressed to single devices Quick
17. ADDITIONAL MANAGEMENT USING VT100 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 table The user name to use depends on which access level you require Default User Name Password Access Level monitor monitor Monitor You can access but not change the operational parameters of the hub manager manager Manager You can change the operational parameters of the hub but cannot add or delete users download software or initialize the hub security security Security You can access all the screens and change all manageable parameters At the earliest opportunity the system manager should change the passwords for the default users The system manager needs to log on as manager and monitor to change their passwords For information on how to change a password see Editing Users on page 5 18 Initializing the hub returns the passwords to their default values If you are not logging on as one of the default users your system manager has assigned you a user name and password The user name determines which of the three access levels monitor manager or security you have The user name and passwords are case sensitive To log on to the facility enter your user name and password in the appropriate fields and select OK The Main Menu screen is displayed amp 16710 bk MANVT100 FRM Page 9 Tuesda
18. ANY 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 CAUSED BY CUSTOMER S OR ANY THIRD PERSON S MISUSE NEGLECT IMPROPER INSTALLATION OR TESTING UNAUTHORIZED ATTEMPTS TO REPAIR OR MODIFY OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OR OTHER HAZARD LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY WHETHER BASED IN CONTRACT OR TORT INCLUDING NEGLIGENCE FOR INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF 16710 bk WARRANTY FRM Page 126 Tuesday October 7 1997 11 38 AM REVENUE OR PROFITS LOSS OF BUSINESS LOSS OF INFORMATION OR DATA OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF ITS PRODUCTS EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIMITS ITS LIABILITY TO REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE
19. CREYRNET FRM Page 2 Tuesday October 7 1997 11 38 AM amp 2 2 CHAPTER 2 CREATING YOUR NETWORK Alert LED Collision LED gt Network Utilization LEDs orange yellow green yellow orange Alerts you to a problem with your network The Flashes each time a collision is detected on the Indicates how much your network is being used conditions that light the LED are configurable network Collisions are part of normal network through management see Chapter 4 operation fa Connect m PotStats _ m Network Utilization Q TETEE SE u PWR COLL 1 2 3 4 5 6 78 COAX 1 2 3 6 12 25 50 80 Alert green link OK off link fail yellow partition Port Status LEDs Power LED green yellow green Indicates the status of each port If green the link between the port and the next piece of network Indicates that the power supply to the hub is equipment is OK If nothing is connected the LED is off If yellow the port has partitioned due to a fault on present that segment The Coaxial port LED can only be yellow or off It is yellow if the port has partitioned Figure 2 1 The LEDs And How To Use Them amp 16710 bk CREYRNET FRM Page 3 Tuesday October 7 1997 11 38 AM LEDs and Ports 2 3 Power Adapter socket gt Console port MDI MDIX switch Only use the
20. Config Manager allows you to display the network traffic as a percentage of the total possible Multicast Shows the percentage of readable frames i traffic for a port or the hub all ports in any one time received that are addressed to multiple devices The total number of multicast frames is normally a small period percentage of the value seen for unicast single To display the Network Traffic graph for a port address frames A high level of multicast frames can adversely affect network performance 1 Double click on the port for which you want to display the Network Traffic graph Broadcast Shows the percentage of frames received which are addressed to all devices The total number 2 In the Port dialog box choose the Info category lt p of broadcast frames is normally a small percentage of f the value seen for unicast single address frames A 3 In the Repeater Port Info panel select the Traffic high level of broadcast frames can adversely affect check box network performance a Click on OK The values shown in the Frame Types pie chart are per poll period not per second To change the poll period see Accessing the Hub on page 4 6 To display the Network Traffic graph for the hub m From the View menu select Traffic Quick Config Manager displays the Network Traffic graph as shown in Figure 4 9 The values shown in the Network Traffic graph are the average per poll period To change the poll period
21. IP Out of Band Configuration Shows the following Serial Line IP Address SLIP allows IP to run over the console port instead of the network SLIP allows you to use out of band management either locally or remotely through a modem SLIP operates with any valid IP address The default is 192 168 101 1 which is the address Quick Config Manager uses SubNet Mask Enter the SLIP subnet mask For a class C address 255 255 255 0 the default is suitable If you are using SLIP and have changed any of the console port settings using VT100 ensure that Flow Control is not set to XON XOFF see Connecting a Modem to the Console Port on page 5 13 If you require more information about SLIP read the Internet Activities Board document RFC 155 Router IP Address Enter the IP address of the router if you have one which is used by the hub to communicate with other networks Manager IP Address Enter the IP address of a management station that has an IP based network management application running on it You can configure the hub to send messages called traps to this management station Quick Config Manager does not have a facility to receive traps because it is a configuration tool not a management tool gt 16710 bk MANAGING FRM Page 11 Tuesday October 7 1997 11 38 AM Resetting the Hub 4 11 Resetting the Hub Resetting the hub simulates switching the hub off and on You may want to reset the hub if you w
22. LED to light the LED goes off after you have acknowledged the alert by pressing the associated Ack button the LED stays lit if other conditions also caused it to light Authentication Failure Enabled Disabled Allows you to specify whether the Alert LED lights if an authentication failure occurs which happens if a user attempts to access information on your hub using an invalid community string If this condition caused the Alert LED to light the LED goes off after you have acknowledged the alert by pressing the associated Ack button the LED stays lit if other conditions also caused it to light WorkGroup Monitor Failure Enabled Disabled Allows you to specify whether the Alert LED lights if a workgroup monitor failure occurs which happens if a remote device fails to respond to a workgroup monitor poll from your hub If this condition caused the Alert LED to light the LED goes off after you have acknowledged the alert by pressing the associated Ack button the LED stays lit if other conditions also caused it to light amp 16710 bk MANAGING FRM Page 18 Tuesday October 7 1997 11 38 AM amp 4 18 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Network Utilization High Med Low Disabled Allows you to specify whether the Alert LED lights if Monitoring a certain level of network utilization is exceeded for five seconds The levels are a High 80 network utilization a Med 50 network utilizat
23. Manager on page 6 3 amp 16710 bk MANVTI100 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 Polling a Remote Device 5 19 Con OfficeConnect Delete Users User List monitor manager security janes laurence DELETE USERS CANCEL Polling a Remote Device The Remote Poll screen as shown in Figure 5 12 is used to see if a remote device is responding by sending a message forcing a response from the target device This determines if there is a path or a congested path between this device and other devices on the network This option is available only for users with manager access level or higher on OfficeConnect Remote Poll Figure 5 11 Delete Users Screen Select the users to delete from the List Box using the spacebar then move to the DELETE USERS button and press Return You cannot delete the current user the user name you used to log on or any of the default users monitor manager or security Target Address 197 171 171 459 1 Round Trip Time no reply This operation will poll the target device IP address format d d d d IPX address format AABBCCDD AABBCCDDEEFF POLL CANCEL Figure 5 12 Remote Poll Screen
24. QUICK CONFIG MANAGER Viewing the Hub Quick Config Manager can display a graphical representation of the hub you are managing with m The ports color coded to show their condition m The Alert LED reflecting its physical state To display the hub m From the View menu select Zoom In Quick Config Manager displays a zoom view of the hub as shown in Figure 4 4 If the zoom view is already open it is selected Transcend Quick Configuration Manager Finance File BYE Configure Window Help Activity Errors Frame Types Traffic Errors Figure 4 4 Zoom View Of The Hub 16710 bk MANAGING FRM Page 12 Tuesday October 7 1997 11 38 AM The port color coding shows these conditions Green Port enabled and capable of receiving and transmitting traffic Red Port enabled and partitioned or port enabled but the connection is lost Blue Port disabled by management In the Community Polling dialog box you can specify whether the zoom view is invoked on starting Quick Config Manager and how often the zoom view is polled updated If you want to update the zoom view immediately without waiting for a poll select Update Zoom from the File menu Double clicking on the Zoom View You can configure information for the hub by double clicking on the zoom view f you double click on a port the Port dialog box is displayed This is used to configure information for a port see Configur
25. The user cannot create or delete other users re initialize the hub or download a software image Specialist In this implementation Specialist has the same rights as Manager Security This allows the user to access all the management operations This level of security should be assigned only to the system administrator or somebody with the system administrator s responsibilities To prevent you from locking yourself out from the hub completely console port access is always kept enabled for the security access level Console Port Enabled Disabled To prevent access to the management facilities through the console port disable access to the facility for each access level To allow you to configure the hub locally in the event of problems on your network we suggest that you change the default password for the permanently enabled security access level see Editing Users on page 5 18 Remote Telnet Enabled Disabled Telnet is an insecure protocol You may wish to disable all access to the management facilities through Telnet if there is important or secret data on your network Community SNMP Enabled Disabled The hub can be managed through SNMP using a remote network manager Community SNMP does have some simple security features but it is an insecure protocol You may wish to disable all access to the management facilities through Community SNMP if there is important or secret data on your network gt
26. address of the incoming frame does not match the authorized addresses for this port the port is disabled to prevent communication This option is only valid when Full Security has been selected Need To Know Allows you to configure which frames are forwarded to the selected port If the port does not support configurable Need To Know these options are grayed out Disabled All frames are forwarded Enabled The port examines the destination address of the frame If it matches an authorized address for the port it is forwarded If it does not it is scrambled so it can t be read Allow Broadcasts In addition to Enabled allows broadcast frames to be transmitted to the port Allow Broadcasts and Multicasts In addition to Enabled allows broadcast and multicast frames to be transmitted to the port Hub Security 4 31 When you click on OK the operation may fail for one gt of the following reasons The operation has timed out An Invalid MAC address in other words Multicast or Broadcast address has been entered into the list of authorized addresses There is a duplicate address on another port If the address is on another port already and DUD is set to Full Security or Autolearn you must remove the address from the other port before it can be assigned to the current port Configuring Security at Hub Level To configure security for a hub 1 Do one of the following Double click on the graphic
27. amp 16710 bk FRONT FRM Page 1 Tuesday October 7 1997 11 38 AM OFFICECONNECT HUB 8 TPM 3 3C16710 USER GUIDE OFFICE CONNECT Part No DUA1671 0AAA03 Published October 1997 16710 bk FRONT FRM Page 2 Tuesday October 7 1997 11 38 AM 3Com Corporation m 5400 Bayfront Plaza m Santa Clara California m 95052 8145 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 3Com Technologies reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Technologies to provide notification of such revision or change 3Com Technologies provides this documentation without warranty of any kind either implied or expressed including but not limited to the implied warranties of merchantability and fitness for a particular purpose 3Com may make improvements or changes in the product s and or the program s described in this documentation at any time UNITED STATES GOVERNMENT LEGENDS If you are a United States government agency then this documentation and the software described herein are provided to you subject to the following restricted rights For units of the Department of Defense Restricted Rights Legend Use duplication or disclosure by the
28. an IP IPX based network management application if the partition state changes Learn Stations Enabled Disabled Selects whether the source address of received frames is learned Attached Station Shows the MAC address of the device attached to this port the last device to transmit to this port The check boxes in the View Port box enable you to display statistics for the port and are described in Monitoring on page 4 18 The View Station box is always disabled for Quick Config Manager gt 16710 bk MANAGING FRM Page 28 Tuesday October 7 1997 11 38 AM CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Hub Security The OfficeConnect Hub 8 TPM provides flexible communication between your workstations and other network equipment It is a good idea to configure security for the hub to protect your network from unwanted communications Security can be performed at two levels Port Configure security for an individual port Hub Configure security for one or more ports at a time The way you set up your security depends on what you want to do For example if you have one device connected to a specific port you would manage at port level to secure that connection If you have several devices that you want to connect to any of a number of ports you would manage at hub level to secure that connection If you simply want to disable a port see Configuring a Port on page 4 25 3
29. contain ing patches software drivers and technical articles Germany 0130 81 80 63 about all 3Com products as well as a messaging Hong Kong 800 933 486 section for peer support To use 3ComForum you Italy 1678 99085 need a CompuServe account Malaysia 1800 801 777 To use 3ComForum Netherlands 06 0228049 1 Log on to CompuServe New Zealand 0800 446 398 2 Type go threecom p Norway 800 11062 Portugal 0505 442 607 3 Press Return to see the 3ComForum main menu Russia Moscow only 956 0815 Singapore 800 6161 463 Spain 900 964 445 Sweden 020 792954 U K 0800 626403 amp 16710 bk PRODRANG FRM Page 4 Tuesday October 7 1997 11 38 AM C 4 APPENDIX C TECHNICAL SUPPORT Contact your local 3Com sales office to find your Support from Your Network Supplier authorized service provider using one of these If additional assistance is required contact your numbers network supplier Many suppliers are authorized 3Com service partners who are qualified to provide Regional Sales Office Telephone Number a variety of services including network planning 3Com Corporation installation hardware maintenance application train P O Box 58145 800 NET 3Com or 1 408 764 5000 ing and support services 5400 Bayfront Plaza 408 764 5001 fax When you contact your network supplier for ee lola Colonie 95052 8145 assistance have the following information ready USA p m Diagnostic error messages 3Com Asia Limited Australia 61 2 9937 5000
30. for U K Users Only A 1 Standards A 1 Cabling A 2 10BASE T A 2 Console Port A 3 IP AnD IPX ADDRESSES IP Addresses B 1 Obtaining aNetwork Number B 2 16710 bk 16710 TOC Page v Tuesday October 7 1997 11 38 AM How IP Addresses Work B 3 Assigning IP Addresses to a Small Contained Network B 5 IPX Addresses B 6 TECHNICAL SUPPORT 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 Support from 3Com C 4 Returning Products for Repair C 6 INDEX LIMITED LIFETIME WARRANTY EMC STATEMENTS amp 16710 bk 16710 TOC Page vi Tuesday October 7 1997 11 38 AM amp 16710 bk IMSAFETY FRM Page 7 Tuesday October 7 1997 11 38 AM IMPORTANT SAFETY INFORMATION 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 hub Exceptional care must be taken during installation and removal of the unit Only stack the OfficeConnect hub with other OfficeConnect units Only use the power adapter that is supplied with the unit to ensure compliance with international safety standards It is essential that the power outlet is located near the unit and is accessible You can only remove power to the OfficeConn
31. glossary 1 2 loop 1 2 2 8 management 3 B 6 1 3 6 manager community string 5 13 operating system 2 4 terminology 1 2 utilization 4 18 Network Errors graph alignment errors 4 24 FCS errors 4 24 late events 4 25 rate mismatch 4 25 short events 4 24 too long errors 4 24 very long events 4 25 network supplier support C 4 Network Traffic gra node IPX 5 11 ph 4 22 NTK 4 28 null modem cable A 3 O OfficeConnect hub 1 1 online technical services C 1 operating environment A 1 operating system 2 4 out of band management 3 4 P packet 1 3 parity console port setup 5 15 partition 1 2 4 16 state 4 27 traps 4 27 passwords changing 5 18 creating 5 17 default 5 8 pinouts A 2 polling 4 6 other devices 4 37 port 2 1 attached station 4 27 colors 4 12 configuration 4 configure 4 25 learn stations 4 27 link state 4 27 link traps 4 27 media type 4 27 25 partition state 4 27 partition traps 4 27 security 4 29 security violation 4 17 selection 4 32 state 4 27 Port Configuration dialog box 4 26 Port Security dialog box 4 29 positioning your equipment 2 5 power A 1 problem solving 6 1 problems using Quick Config Manager 6 3 using VT100 6 3 using your hub 6 2 product range C 1 PROM software revision 5 21 Q Quick Config Manager 3 1 3 3 3 5 4 2 installing 4 1 problems 6 3 using 4 1 quick installation connecting equipment 2 7 management software 4 2 QUI
32. page 5 6 16710 bk MANVT100 FRM Page 14 Tuesday October 7 1997 11 38 AM If you are unsure of the correct settings to use refer to the manual for your terminal or modem If you change the settings by accident return them to their default settings shown on these pages as the underlined values Serial Connection Terminal Modem Select Modem if you want to manage the hub through a modem Otherwise leave as Terminal The cable you require for connecting a modem is shown in Cabling on page A 2 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 The hub can automatically configure the terminal speed to work with your VT100 terminal Note that the setting made by automatic configuration is not displayed on the screen Leave this field as Auto Config if you require automatic configuration To start automatic configuration the wake up procedure must be performed at your VT100 terminal Char Size Parity and Stop Bit are all fixed Modem Dial String Configured Hub Login Over Modem Link Configured and Hub Logout Over Modem Link Configured are fields reserved for use by suppliers setting up the special modem dial out feature see Remote Management Service on page 3 7 16710 bk MANVT100 FRM Page 15 Tuesd
33. power you may have a faulty power adapter which needs replacing with another OfficeConnect power adapter Do not use any other power adapter with the hub Alert LED continuously lit If you haven t configured the Alert LED it lights for two default conditions It could be that there is either continual excessive use of your network over 80 or more likely a 10BASE T port has partitioned due to a loop in your network in which case a Port Status LED is yellow Examine your connections and remove the loop Each piece of equipment needs only one connection to your OfficeConnect hub If you have configured the Alert LED check the Alerts dialog box in Quick Config Manager to see what conditions have caused the LED to light see Setting Up the Alert LED on page 4 15 Check that the Alert LED Test is disabled in the Alerts dialog box If it is not select Disable and click on OK Port Status LED yellow for a 10BASE T port It is likely that there is a loop in your network which has caused this port to partition Examine your connections and remove the loop Each piece of equipment needs only one connection to your OfficeConnect hub Port Status LED not lit for a 10BASE T port that has a connection There is a problem with this connection Check you are using a Straight through 10BASE T cable which is properly connected at both ends is not damaged and that the equipment it is connected to is powered on and operating cor
34. refund to Customer the purchase price paid for the defective product All products that are replaced will become the property of 3Com Replacement products may be new or reconditioned Any replaced or repaired product or part has a ninety 90 day warranty or the remainder of the initial warranty period whichever is longer 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 16710 bk WARRANTY FRM Page 125 Tuesday October 7 1997 11 38 AM SOFTWARE 3Com warrants that the software licensed from it will perform in substantial conformance to the specifications therefor for a period of ninety 90 days from the date of purchase from 3Com or its Authorized Reseller 3Com warrants the media containing software against failure during the warranty period 3Com s sole obligation with respect to this express warranty shall be at 3Com s discretion to refund the purchase price paid by Customer for any defective software products or to replace any defective media 3Com makes no warranty or representation that its software products will work in combination with any hardware or applications software products provided by third parties that the operation of the software products will be uninterrupted or error free or that all defects in the software products will be corrected STANDARD WARRANTY
35. screens in Chapter 4 The VT100 Screen Map on page 5 5 includes these references This chapter starts with an overview of the VT100 user interface A map of all the screens is given to help you to access any chosen screen In the descriptions of the options given in this chapter the default values are underlined VT100 User Interface We suggest you read through this section before you use the hub s VT100 facility for the first time Afterwards you should only need it for reference Screens Screens are divided into three main areas m The header area at the top of the screen displays a title which tells you the subject of the screen m The main part of the screen shows management information m The message area at the bottom of the screen is used to display information and error messages gt The displayed screens may not be identical to those illustrated in this chapter The contents of screens depend on your access level Access levels are described in Logon on page 5 7 gt 16710 bk MANVT100 FRM Page 2 Tuesday October 7 1997 11 38 AM 5 2 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT 100 Screen Components Description Component The main part of a typical screen contains several OK different types of item This table gives an example of Button each component and explains its use Component Description Enabled Text enclosed in markers is a list from which Choi
36. see Accessing the Hub on page 4 6 gt Activity Errors Erame Types Traffic Errors Port Configuration Unit 1 Port 1 Repeater Port Info Category Traffic View Port O Activity O Frames Traffic O Errors Ethernet Utilisation 12 23 45 12 24 15 12 25 04 12 25 16 12 25 32 12 25 48 Figure 4 9 Network Traffic Graph 16710 bk MANAGING FRM Page 23 Tuesday October 7 1997 11 38 AM Monitoring 4 23 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 1 Double click on the port for which you want to display the Network Errors graph 2 In the Port dialog box choose the Info category 3 In the Repeater Port Info panel select the Errors check box 4 Click on OK To display the Network Errors graph for the hub m From the View menu select Errors Quick Config Manager displays the Network Errors graph as shown in Figure 4 10 gt 16710 bk MANAGING FRM Page 24 Tuesday October 7 1997 11 38 AM Activity Errors Erame Types Traffic Errors Zoom pI Port Configt ration Unit 1 Port 1 Category Errors Alignment men Figure 4 10 Network Errors Graph View Port O Activity O Frames O Traffic
37. the following line under the slip subsection of the QUICKMGR INI file SerialAttrib COM1 9600 n 8 1 Editing it to SerialAttrib COM2 9600 n 8 1 changes the default serial port to COM2 Configuring Multiple Hubs 4 3 To do this Make your serial connection to the new hub From the File menu select Reset View Quick Config Manager closes any windows that are open in preparation for the new management session amp Configuring Multiple Hubs gt There is a special feature which allows you to connect your management station to a new OfficeConnect Hub 8 TPM without needing to close and reopen Quick Config Manager This is particularly useful if you have many OfficeConnect hubs that need configuring or monitoring This feature only works if all the hubs you are going to connect to have the same baud rate or are set to Auto Config as the management station Quick Config Manager Window Map Figure 4 1 over the page shows how all of the Quick Config Manager windows are accessed This diagram also appears on the Quick Reference Guide The number at the top right hand side of each window refers to the page that describes the window amp 16710 bk MANAGING FRM Page 4 Tuesday October 7 1997 11 38 AM 4 4 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Transcend Quick Configuration Manager Finance Configure Activity Errors Community Polling Erame Types IP Setup Traffic Err
38. the hub see IP Addresses on page B 1 You may use the BOOTP facility see the BOOTP Select field description if your network has a BOOTP server or enter it manually If you change the device IP address you must reset the hub to effect the change CAUTION To ensure that Quick Config Manager can always communicate with the hub the IP subnet 192 168 101 x is permanently assigned to the SLIP port in addition to the user configurable SLIP address Do not use this subnet for your Ethernet network Device SubNet Mask If using IP enter a suitable subnet mask BOOTP does this automatically For a class B IP address 255 255 0 0 is suitable If you change this field reset the hub to effect the change Default Router If necessary enter the IP address of the default router on your network BOOTP does this automatically If you change this field reset the hub to effect the change amp 16710 bk MANVTI100 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 SLIP operates with any valid IP address The default is 192 168 101 1 which is the address Quick Config Manager uses If you change this field reset the hub to effect the change CAUTION Changing the SLIP address and SLIP subnet mask can prevent Quick Config Manag
39. time in minutes between consecutive updates of the graphical representation of the hub If Off is selected the bitmap is not updated at all you can select Update Zoom from the File menu to display any new states Graph s 15 30 45 60 The time in seconds between consecutive updates of any graphs that are displayed Invoke zoom view on start up Check this box if you want the graphical representation of the hub to be displayed every time you start Quick Config Manager Through VT100 management you can configure new users for the hub with different community strings see Configuring Users on page 5 17 16710 bk MANAGING FRM Page 7 Tuesday October 7 1997 11 38 AM Giving the Hub an IP Address 4 7 Giving the Hub an IP Address gt A You can configure the hub with an IP address and other useful information enabling it to communicate over become part of an IP network The hub does not need an IP address to make your Quick Config Manager work with it You need to give your hub an IP address if you want to use an IP based network manager for example Transcend Enterprise Manager to manage it over the network CAUTION f you have no previous knowledge of IP see IP Addresses on page B 1 The IP Setup dialog box is used to set up IP information and change the SLIP address for the hub The IP Setup dialog box has a useful Easy Setup option which takes you through the IP configuration proc
40. with these EMC standards Environmental EN 60068 IEC 68 Refer to EMC Statements at the back of this user guide for conditions of operation amp 16710 bk DIMSNSTA FRM Page 2 Tuesday October 7 1997 11 38 AM A 2 APPENDIX A DIMENSIONS STANDARDS AND CABLING Cabling 10BASE T AL Port Connector 87654321 12345678 Figure A 2 Pin Numbering For 10BASE T p Straight through 1 2 3 6 Pins 4 5 7 and 8 are not used Figure A 3 Straight through 10BASE T Cabling Crossover Pins 4 5 7 and 8 are not used Figure A 4 Crossover 10BASE T Cabling 3 6 1 2 gt 16710 bk DIMSNSTA FRM Page 3 Tuesday October 7 1997 11 38 AM Console Port 12345 6789 54321 Shell Connector 9876 Figure A 5 Pin Numbering For Serial Connection Examples of Null Modem Cables You Can Use OfficeConnect Hub 8 TPM Console Port 9 pin male Screen Shell TxD 3 RxD Ground RTS CTS DSR DCD DTR Workstation Serial Port 9 pin male female Shell Screen RxD TxD Ground RTS DTR CTS DSR DCD Figure A 6 Example Of Null Modem Cabling For 9 Pin Workstation P OfficeConnect Hub 8 TPM Console Port 9 pin male Screen Shell TxD RxD Ground RTS CTS DSR DCD DTR Cabling A 3 Workstation Serial Port 25 pin male female Screen RxD TxD Ground RTS DTR CTS DSR DCD Figure A 7 Example Of Null Modem Cabling For 25 Pin Workstation
41. 0 bk MANVTI100 FRM Page 18 Tuesday October 7 1997 11 38 AM CHAPTER 5 ADDITIONAL MANAGEMENT USING VT100 Editing Users gt The Edit User screen as shown in Figure 5 10 is used to change your own password or community string This option is available only for users with security access level No user can directly change another user s password or community string If you are a system administrator and wish to change another user password you need to log on as the other user 3Com OfficeConnect Edit User Hew Password Confirm Password Community String User Name security Old Password security OK CANCEL Figure 5 10 Edit User Screen The options are similar to the Create User screen see Creating Users on page 5 17 The main differences are the password fields You must type in your current password in the Old Password field before you can change any fields To set a new password enter the password in both the New Password and Confirm Password fields If you enter different values for the New Password and Confirm Password fields an error message is displayed when the OK button is selected If Return is then pressed a null password is set for the user The user can log in but if an attempt is made to change the password again the message Old Password Field Not Completed is displayed If you forget your password refer to the advice in Problems When Using Quick Config
42. 00 000 to 239 255 255 255 16710 bk IPADDRES FRM Page 4 Tuesday October 7 1997 11 38 AM Subnets You can further divide your IP network into sub networks Support for sub networks is important because the number of bits assigned to the device portion of an IP address limits the number of devices that may be addressed on any given network For example a Class C address is restricted to 254 devices If you have a small network less than 254 devices then you may decide not to have sub networks A subnet mask is used to divide the device portion of the IP address into two parts The first part identifies subnet number The second part identifies the device on that subnet gt IP Address Subnet Mask Subnet Address 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 These bits in the mask are set to 0 if the device should treat the bit as part of the device number as shown in Figure B 1 Network Number Device Number 11111111 11111111 11111111 00000000 Subnet Device Number Subnet Number Network Number Figure B 1 Using A Subnet Mask To Obtain The Subnet Address A CAUTION To ensure that Quick Config Manager can always communicate with the hub the IP subnet 192 168 101 x is permanently assigned to the SLIP port in addition to the user configurable SL
43. 00 meters 328 feet Figure 2 5 Correct Hub Connections Using 10BASE T o amp o gt 16710 bk CREYRNET FRM Page 11 Tuesday October 7 1997 11 38 AM amp 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 1OBASE 2 Coax If they are not check your connections If the 10BASE 2 Coax port is not used and is not terminated the LED should be yellow showing that it has partitioned This is correct operation Spot Checks 2 11 Spot Checks At frequent intervals visually check that m The Alert LED is not lit this is the best way to find out if there are problems with your network m Case vents are not obstructed m Cabling is secure and not pulled taut If you suspect there is a problem refer to Chapter 6 amp 16710 bk CREYRNET FRM Page 12 Tuesday October 7 1997 11 38 AM 2 12 CHAPTER 2 CREATING YOUR NETWORK amp 16710 bk ABOUTMAN FRM Page 1 Tuesday October 7 1997 11 38 AM 3 ABOUT NETWORK MANAGEMENT t Network management is not required to get your hub working it simply allows you to change the way it works and to monitor what is happening to your network Each OfficeConnect Hub 8 TPM is a separate manageable entity that means you manage each OfficeConnect Hub 8 TPM individually This chapter lists the management tasks you can perform and descri
44. 33 1 6986 6954 Germany up to 28800 bps 4989 62732 188 Hong Kong up to 14400 bps 852 2537 5608 Italy fee required up to 14400 bps 39 2 27300680 Japan up to 14400 bps 81 3 3345 7266 Mexico up to 28800 bps 52 5 520 7853 P R of China up to 14400 bps 86 10 684 92351 continued Singapore up to 14400 bps 65 534 5693 Taiwan up to 14400 bps 886 2 377 5840 U K up to 28800 bps 44 1442 438278 U S A up to 28800 bps 1 408 980 8204 Access by Digital Modem ISDN users can dial in to 3ComBBS using a digital modem for fast access up to 56 Kbps To access 3ComBBS using ISDN use the following number 408 654 2703 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 Country Telephone Number Hong Kong 852 2537 5610 U K 44 1442 438279 U S A 1 408 727 7021 Local access numbers are available within the following countries Country Telephone Number Australia 1800 678 515 Belgium 0800 71279 Denmark 800 17319 Finland 98 001 4444 amp 16710 bk PRODRANG FRM Page 3 Tuesday October 7 1997 11 38 AM Online Technical Services C 3 3ComForum on CompuServe Online Service Country Telephone Number Enne 05 90 81 58 3ComForum isa CompuServe based service
45. 6 58 4F A0 O Congestion e Station TI View Station Quick Config Manager displays the Repeater Port Info panel as shown in Figure 4 11 To see more options click on the category list at left 4 Inthe Repeater Port Info panel select either Enable or Disable for Port State Figure 4 11 Repeater Port Info Panel gt If the port is part of a resilient link you cannot enable or disable the port You must first delete the resilient link see Resilience on page 4 33 gt 5 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 Partition State Shows whether the port is on and repeating traffic or has been automatically isolated partitioned If the port has partitioned check the cabling at both the port and any devices connected to the port and check for network loops Link State Shows the state of the link for a twisted pair 10BASE T port Port State Enabled Disabled Selects whether the port can repeat information to and from the network Link Traps Enabled Disabled Selects whether a trap is sent to an IP IPX based network management application if the link state changes gt gt 16710 bk MANAGING FRM Page 27 Tuesday October 7 1997 11 38 AM Configuring a Port 4 27 Partition Traps Enabled Disabled Selects whether a trap is sent to
46. 96 14 14 353 1 820 7077 3Com Latin America U S Headquarters Northern Latin America Argentina Brazil Chile Colombia Mexico Peru Venezuela 3Com Mediterraneo Italy Spain 3Com Middle East 408 326 2093 305 261 3266 Miami Florida 541 312 3266 55 11 546 0869 562 633 9242 571 629 4110 52 5 520 7841 7847 51 1 221 5399 58 2 953 8122 39 2 253011 Milan 39 6 5279941 Rome 34 1 383 17 00 971 4 349049 3Com Nordic AB Denmark Finland Norway Sweden 3Com Russia 3Com Southern Africa 45 39 27 85 00 358 0 435 420 67 47 22 18 40 03 46 8 632 56 00 007 095 258 09 40 27 11 807 4397 3Com UK Ltd 131 220 8228 Edinburgh 161 873 7717 Manchester 162 889 7000 Marlow amp 16710 bk PRODRANG FRM Page 6 Tuesday October 7 1997 11 38 AM C 6 APPENDIX C TECHNICAL SUPPORT 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 To obtain an RMA number call or fax Country Telephone Number Fax Number p U S A and Canada 1 800 876 3266 option 408 764 7120 2 Latin America 1 408 326 2927 408 764 7120 Europe South Africa 44 1442 438125 44 1442 435822 and Middle East Outside Europe U S A 1 408 326 2926 1 408 764 7120 and Ca
47. AGING YOUR HUB USING QUICK CONFIG MANAGER Transcend Quick Configuration Manager Finance File View ehe Window Help Community Polling IP Setup General Info Reset Initialize General Info Finance Alerts Category QP Alert LED Test Enable Disable MIB II Enable Disable Cancel e Le Coax Port Partition Enable Disable Resilience c O Enable Disable WorkGroup O Enable Disable Ack A Enable Disable Ack Alerts r O Enable Disable Ack Ay High Medium Low Disable Securty O High Medium Low Disable To see more options click on the category list at left Figure 4 6 Alerts Panel 3 Configure the conditions for the Alert LED 4 Click on OK when the Alert LED setup is complete If any Alert conditions are active the conditions are displayed in red The other conditions are displayed in green If the active conditions are enabled the Alert LED will be lit In the Alerts panel Alert LED Test Enabled Disabled Allows you to test the Alert LED If you select Enable and click on OK the Alert LED lights regardless of the true alert condition of the hub When you have finished your test remember to disable to Alert LED Test To do this select Disable and click on OK The Alert LED now reflects the cu
48. CKMGR INI file 4 3 R rate 4 39 mismatch 4 25 readable frames 4 20 remote management service 3 7 Remote Poll screen 5 19 remote telnet access 5 16 reseller support tool 3 7 resetting the hub 4 11 resilience 4 33 Resilience dialog box 4 35 resilient links 4 33 4 34 restart count 5 21 returning products for repair C 6 RJ45 1 2 round trip 4 39 round trip time 5 20 router IP address 4 10 5 10 rubber feet 2 6 rules resilient links 4 34 running Quick Config Manager 4 2 runt frames 4 20 S Safety Information 7 screen areas 5 1 components 5 2 map 5 4 screens Auto Logout 5 9 Console Port Setup 5 13 Create User 5 17 Delete Users 5 19 Edit User 5 18 Local Security 5 15 Logon 5 7 16710 bk 16710 IX Page 123 Tuesday October 7 1997 11 38 AM Main Banner 5 6 Main Menu 5 9 Remote Poll 5 19 Setup 5 10 Software Upgrade 5 21 Status 5 20 Trap Setup 5 12 security 4 28 hub level 4 31 port level 4 29 violation 4 17 Security Configuration dialog box 4 32 segment 1 3 self test 6 1 serial connection 5 14 settings A 4 Setup screen 5 10 short events 4 24 siting your equipment 2 5 SLIP 1 4 4 10 5 11 address 4 10 5 11 parameters 4 10 5 11 subnet mask 4 10 5 11 SNMP 1 3 4 13 community string 5 17 enabling disabling access 5 16 software image version number 5 21 upgrade 5 21 Software Upgrade screen 5 21 speed console port setup 5 15 spot checks 2 11 stacking 2 8 clips 2 6 P standards A 1
49. Com 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 If the hub detects a communication from an unknown device at a port it can disable that port to prevent further communication Need To Know NTK If a frame is to be forwarded from a port the destination address of the frame is checked and if it does not match the device learnt for that port the frame is scrambled to prevent the communication from being intercepted gt Configuring Security at Port Level To configure security for a port 1 From the View menu select Zoom In to display the representation of the hub 2 Double click on the port for which you want to configure security Quick Config Manager displays the Port Configuration dialog box 3 In the Port Configuration dialog box select the Security category Quick Config Manager displays the Port Security Configuration panel as shown in Figure 4 12 In the Port Security Configuration panel at port level Authorized Addresses Shows the following No of Addresses Displays the number of addresses that can be authorized for this port The list above it shows any addresses already configured for this port 16710 bk MANAGING FRM Page 29 Tuesday October 7 1997 11 38 AM Hub Security 4 29 Transcend Quick Configuration Mana
50. 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 1 Double click on the port for which you want to display the Activity Errors graph Port Configuration Unit 1 Port 1 Category Repeater Port Info 2 In the Port dialog box choose the Info category x Activity Errors 3 In the Repeater Port Info panel select the Activity Total Errors ja Runts check box Readable Frames Broadeasi Frames H Collision U Frames 4 Click on OK a O Traffic 2830 O Enors 2264 To display the Activity Errors graph for the hub _ dees 1132 m From the View menu select Activity Errors n Y kj a er c E v pd w 566 Quick Config Manager displays the Activity Errors Fh E le ED Ai graph as shown in Figure 4 7 12 21 364 12 22 534 12 23 40 Figure 4 7 Activity Errors Graph gt CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Total Errors Shows the total number of errors that have occurred per poll it should be a small percentage of the readable frames figure Runts Shows the number of frames received with octet counts less than the minimum legal size 512 bits which were not involved in a collision on the segment being monitored Runt frames are the result of collisions on other segmen
51. FETY FRM Page 8 Tuesday October 7 1997 11 38 AM WICHTIGE SICHERHEITSHINWEISE Dieser Hub arbeitet mit SELV Spannung Safety Extra Low Voltage Sicherheitskleinspannung gem IEC950 Diese Bedingungen werden nur eingehalten wenn die Ger te mit denen der Hub verbunden ist ebenfalls mit SELV Spannung arbeiten Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Ger t vorhanden Wenn Sie ein Problem mit dem Hub haben das nicht mittels der Fehleranalyse in dieser Anleitung behoben werden kann setzen Sie sich mit Ihrem Lieferanten in Verbindung Bevor der Hub ausgebaut wird ist das Netzteil zu ziehen ACHTUNG gedrehte paarfache RJ45 Anschl sse Es sind abgeschirmte RJ45 Datenanschlu buchsen Sie durfen nicht als TelefonanschluB verwendet werden Verbinden Sie nur RJ45 Datenstecker mit diesen Anschl ssen amp 16710 bk IMSAFETY FRM Page 9 Tuesday October 7 1997 11 38 AM L INFORMATION DE SECURITE IMPORTANTE AVERTISSEMENT Les avertissements contiennent les instructions que vous devez suivre pour votre securite personnelle Suivre toutes les instructions avec soin Veuillez lire a fond l information suivante avant d installer le moyeu Le soin exceptionnel doit tre pris pendant l installation et l enl vement du moyeu Seulement entasser le moyer avec les autres moyeux OfficeConnects Seulement utiliser la pi ce de raccordement d alimentation qui est fournie avec le moyeu pour as
52. Government is subject to restrictions as set forth in subparagraph c 1 ii for restricted Rights in Technical Data and Computer Software clause at 48 C F R 52 227 7013 3Com Technologies c o 3Com Centre Boundary Way Hemel Hempstead Herts HP2 7YU UK For civilian agencies Restricted Rights Legend Use reproduction or disclosure is subject to restrictions set forth in subparagraph a through d of the Commercial Computer Software Restricted Rights Clause at 48 C F R 52 227 19 and the limitations set forth in 3Com Corporation s standard commercial agreement for the software Unpublished rights reserved under the copyright laws of the United States If there is any software on removable media described in this documentation it is furnished under a license agreement included with the product as a separate document in the hard copy documentation or on the removable media in a directory file named LICENSE TXT If you are unable to locate a copy please contact 3Com and a copy will be provided to you Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com OfficeConnect NetAge SmartAgent and Transcend are registered trademarks of 3Com Corporation 3ComFacts and Ask3Com are service marks of 3Com Corporation CompuServe is a registered trademark of CompuServe Inc Windows is a registered trademark of Microsoft Corporation VT100 is
53. Hi TNS DUD a beenreset seen oe ange Hub p address correctly when invoking the Telnet facility on page t a The hub s IP address is correctly recorded by the You forget your password IP IPX based management application For Another user with security access level can log in information on how to do this refer to the using VT100 delete your user name and create a documentation accompanying the application new user name with a new password for you see Configuring Users on page 5 17 Traps are not received by the IP IPX based management application Check that the address If you know your community string you can log in of the management station is entered in the hub s using Quick Config Manager and initialize the trap table see Setting Up Traps on page 5 12 device see Initializing the Hub on page 4 11 This returns all configuration information including passwords to the default values Alternatively another user with security access level can log in and initialize the device gt 16710 bk PROBSOLV FRM Page 5 Tuesday October 7 1997 11 38 AM Problems When Using an IP IPX based Management Application 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 If it is enabled check the connections and n
54. IP address Do not use this subnet for your Ethernet network gt 16710 bk IPADDRES FRM Page 5 Tuesday October 7 1997 11 38 AM IP Addresses B 5 Assigning IP Addresses to a Small Contained Network If you have a small network less than 255 devices that you do not plan to connect to the Internet then here is a guide as to what you can use for the IP addresses and subnet mask Use an IP address that is in the range 192 000 001 xxx to 223 255 254 xxx Class C to define your network and allocate device numbers the xxx part of the IP address starting from 1 Use a dummy subnet mask of 255 255 255 0 to match the network portion of your IP addresses Remember that no two devices on a network may have the same IP address amp 16710 bk IPADDRES FRM Page 6 Tuesday October 7 1997 11 38 AM B 6 APPENDIX B IP AND IPX ADDRESSES 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 This happens approximately 60 seconds after the hub is powered up for the first time You should never need to change the allocated address amp 16710 bk PRODRANG FRM Page 1 Tuesday October 7 1997 11 38 AM C TECHNICAL SUPPORT ott eee ee e 3Com provides easy access to technical support World Wide Web Site information through a variety of services This Access the latest networking inform
55. NET FRM Page 8 Tuesday October 7 1997 11 38 AM 2 8 CHAPTER 2 CREATING YOUR NETWORK The hub detects all port connections so you can start using your network immediately When you need more ports simply add more OfficeConnect hubs If you are using port 8 to connect a workstation gt 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 Connecting OfficeConnect Hubs Together You can increase the number of workstations that can connect to your network by adding more OfficeConnect hubs You can use either 10BASE T or 10BASE 2 Coax to do this With 10BASE 2 Coax you can connect up to 30 hubs on a single segment leaving all of the RJ45 ports free With 10BASE T you can connect up to four hubs in series CAUTION Do not connect the same two hubs together using both 10BASE T and 10BASE 2 Coax This causes a network loop gt 16710 bk CREYRNET FRM Page 9 Tuesday October 7 1997 11 38 AM Connecting Hubs Using 10BASE 2 Coax gt When using 10BASE 2 Coax cable it is important that both ends of the segment are properly terminated with 50 Ohm terminators end pieces Only use 50 Ohm 10BASE 2 Coax cables and use a Y piece for each hub You can use T pieces but Y pieces provide adequate clearance of the other ports Connect a 10BASE 2 Y piece to each of your hubs Daisy chain each Y
56. Polling dialog box 4 6 CompuServe C 3 Configure menu Community Polling 4 6 General Info 4 13 4 15 4 32 4 35 4 38 IP Configuration 4 8 configuring Alert LED 4 15 IP 4 7 port 4 25 resilient links 4 33 connecting gt 16710 bk 16710 IX Page 120 Tuesday October 7 1997 11 38 AM a modem to the console port 5 13 management 3 3 workstations 2 7 connecting hubs together 2 8 using 10BASE 2 Coax 2 9 using 10BASE T 2 10 connections checking 2 11 hub 2 5 workstation 2 4 console port 3 4 5 13 A 3 autoconfiguration 5 15 changing the management station s port 4 3 enabling disabling access 5 16 management 3 4 terminal emulator connecting 3 5 VT100 terminal connecting 3 5 Console Port Setup screen 5 13 contact 4 9 contract ID 4 9 control keys 5 3 conventions 2 Create User screen 5 17 creating resilient links 4 35 crossover 4 35 A 2 D data link protocol 5 12 default COM port 4 3 passwords 5 8 router 5 10 users 5 8 values note 4 1 5 1 Delete Users screen 5 19 device 1 3 general information 4 13 IP address 5 10 name 4 9 subnet mask 5 10 diagnostic LEDs 2 1 dialog box Alerts 4 15 Community Polling 4 6 IP Configuration 4 8 MIB II 4 13 Port Configuration 4 26 Port Security 4 29 Resilience 4 35 Security Configuration 4 32 Workgroup 4 38 dimensions A 1 disable port 4 25 Disconnect Unknown Device 4 28 displaying graphs and charts 4 18 DUD 4 28 E Edit User screen 5 18 emerg
57. SERVICE Standard warranty service for hardware products may be obtained by delivering the defective product accompanied by a copy of the dated proof of purchase to 3Com s Corporate Service Center or to an Authorized 3Com Service Center during the applicable warranty period Standard warranty service for software products may be obtained by telephoning 3Com s Corporate Service Center or an Authorized 3Com Service Center within the warranty period Products returned to 3Com s Corporate Service Center must be pre authorized by 3Com with a Return Material Authorization RMA number marked on the outside of the package and sent prepaid insured and packaged appropriately for safe shipment The repaired or replaced item will be shipped to Customer at 3Com s expense not later than thirty 30 days after receipt of the defective product by 3Com gt WARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE CUSTOMER S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION TO THE FULL EXTENT ALLOWED BY LAW THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES TERMS OR CONDITIONS EXPRESS OR IMPLIED EITHER IN FACT OR BY OPERATION OF LAW STATUTORY OR OTHERWISE INCLUDING WARRANTIES TERMS OR CONDITIONS OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND SATISFACTORY QUALITY 3COM NEITHER ASSUMES NOR AUTHORIZES
58. Software Console Port Edit Upgrade Setup User Uni etu Initialize 4 11 Por Reset 4 11 56 VT100 reference Statistics i i Por Remote 53 4 11 Quick Config Manager reference eup Poll VT100 link between screens Port Logoff Resilience Figure 5 1 VT100 Screen Map amp 16710 bk MANVTI100 FRM Page 6 Tuesday October 7 1997 11 38 AM 5 6 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT100 ICom OF FiceConnect Getting Started This section explains logging on to the VT100 000 FFFF FFFF I CCC EEEE CCCG 000 N N H N EEEE CCEC TTTTT ili i 0 OF F Ic E H 0 O MN NWN NE Cc T management facility displaying the main menu and E Eat Er u Ee SUR HN NEN Ee ze T i 0 OF F Ic E H 0 ON NNN WE Cc T logging off ooo F F I CCEC EEEE CCCG 000 N N H N EEEE CCCC T Main Banner If you are using a VT100 terminal connected directly or through modems to the console port you need a aE to perform the wake up procedure To do this press p Return Return at the terminal Figure 5 2 Main Banner Screen By default the hub automatically configures the baud rate of its console port to operate with the connected terminal or modem provided the parity stop bits and character size are identical to the connected terminal or modem If you are us
59. a registered trademark of Digital Equipment Corporation Other brand and product names may be registered trademarks or trademarks of their respective holders amp 16710 bk 16710 TOC Page iii Tuesday October 7 1997 11 38 AM amp CONTENTS IMPORTANT SAFETY INFORMATION CREATING YOUR NETWORK LEDs and Ports 2 1 Before You Start 2 4 WICHTIGE SICHERHEITSHINWEISE Positioning the OfficeConnect Hub 2 5 Using the Rubber Feet and Stacking Clips 2 6 Wall Mounting the OfficeConnect Hub 2 7 amp L INFORMATION DE S CURIT IMPORTANTE Connecting Workstations and Other Equipment to Your Hub 2 7 amp Connecting OfficeConnect Hubs Together 2 8 YOUR HUB ADDRESSES Spot Checks 2 11 ABOUT THIS GUIDE ABOUT NETWORK MANAGEMENT Introduction 1 3Com Network Management 3 1 How to Use This Guide 1 Why Manage Your Hub 3 2 Conventions 2 Connecting to the Hub and Managing 3 3 Managing Through the Console Port 3 4 Managing Over the Network 3 6 INTRODUCTION Remote Management Service 3 7 Networking Terminology 1 2 gt MANAGING YOUR HuB USING QUICK CONFIG MANAGER Installing Quick Config Manager 4 1 Installation Requirements 4 1 Installation Procedure 4 2 Running Quick Config Manager 4 2 Configuring Multiple Hubs 4 3 Quick Config Manager Window Map 4 3 Accessing the Hub 4 6 Giving the Hub an IP Address 4 7 Resetting the Hub 4 11 Initializing the Hub 4 11 Viewing the Hub 4 12 Displaying Information About t
60. ack your units secure the clips on one side and then on the other Use the following method to secure one side 1 Place your new unit on a flat surface Your clips fit in the positions on the side of the unit as shown in Figure 2 3 1 2 Position a clip over one of these holes and push it in Figure 2 3 Clipping Your Units Together until it clicks into place as shown in Figure 2 3 2 Repeat this for the other clip position on the same a Repeat these steps to secure the other side side To remove a clip hold the units firmly with one hand and hook the first finger of your other hand around the back of the clip Use reasonable force to pull it off 3 Keeping the front of the units aligned rest the bottom of the existing unit on the clips spikes as shown in Figure 2 3 3 Push the clips firmly into the existing unit until they click into place gt 16710 bk CREYRNET FRM Page 7 Tuesday October 7 1997 11 38 AM Wall Mounting the OfficeConnect Hub 2 7 Wall Mounting the OfficeConnect Hub gt 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 When wall mounting your hub ensure that it is within reach of the power outlet You need two suitable screws Ensure that the wall you are going to use is smooth flat dry and sturdy Make two screw holes which are 142 mm 5 6 in
61. age 1 Tuesday October 7 1997 11 38 AM 6 PROBLEM SOLVING e ce e The OfficeConnect Hub 8 TPM has been designed to aid you when detecting and solving possible Isolating a Problem problems with your network These problems are rarely serious the cause is usually a disconnected or damaged cable or incorrect configuration If this A good way of isolating a problem is to see whether it occurs on a particular port only This can be done by chapter does not solve your problem contact your y supplier for information on what to do next m Using a different port to see if the problem still exists m Using management to view how a port has been set Perform these actions first wa up In particular see if the port is m Ensure all equipment is powered on a Partitioned because of a network loop m Power each hub off wait about 5 seconds and then Disabled by management power them on so they perform a self test The self test only takes a few seconds during which all LEDs light Port Status LEDs light yellow m Performing security a Part of a resilient link pair Check the Alert LED and if lit use the Alerts dialog box in Quick Config Manager to see what condition is causing it to light gt 16710 bk PROBSOLV FRM Page 2 Tuesday October 7 1997 11 38 AM CHAPTER 6 PROBLEM SOLVING Problems When Using Your Hub gt Power LED not lit Check your power adapter connection If there is still no
62. ager may highlighted to abandon this screen without automatically set up the trap destination addresses actioning any changes and return to the Main Menu for you Check the accompanying documentation 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 You can enter any text string of up to 32 characters case sensitive The remote network management station must be configured to look for traps sent with this community string otherwise it will ignore the traps The default community string is public Throttle To prevent a remote network management station receiving too many traps at once you can configure the hub to transmit traps with a delay between each trap If several traps are generated at once they will be transmitted with the specified delay between them The unit of throttle is one thousandth of a second The default value is 100 which gives a delay of one tenth of a second between each transmission If you set the throttle to 0 traps will be sent as soon as they are generated If your trap configuration results in a large number of traps being generated within a short period of time it is possible that some traps will not be sent 16710 bk MANVT100 FRM Page 13 Tuesday October 7 1997 11 38 AM Connec
63. al representation of the hub but not on a port From the Configure menu select General Info 2 In the General Info dialog box choose the Security category amp 16710 bk MANAGING FRM Page 32 Tuesday October 7 1997 11 38 AM 4 32 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Transcend Quick Configuration Manager Finance Eile View ehe Window Help Community Polling IP Setup General Info Reset Initialize General Info Finance Security Configuration _ Available Selected Unit Port Type Unit Port Twisted Pair saen Twisted Pair Tested Per Kresse Twisted Pair Twisted Pair La Twisted Pair lt lt All Need to Kni Access Control Disable No Restriction Enabled Continually Learn Allow Broadcasts Auto Learn Allow Broadcasts and Multicasts Full Security E Disable on Intrusion No of Addresses To see more options click on the category list at left Figure 4 13 Security Configuration Panel Quick Config Manager displays the Security Configuration panel as shown in Figure 4 13 3 Configure the security features for each port 4 Click on OK when the security setup is complete In the Security Configuration panel at hub level Available This lists the hub s ports identifying them by port number and media type Click on a port to select it from the list or perform a multiple selection Selected
64. ant to m Apply any changes made to the hub s IP configuration m Resets the hub s statistics counters T CAUTION Performing a reset may cause some of the data being transmitted over the network to be lost To reset the hub 1 From the Configure menu select Reset Quick Config Manager asks you to confirm the reset 2 In the confirmation dialog box click on OK The hub takes about 20 seconds to reset itself You may need to select Reset View from the File menu to re establish communication with the hub Initializing the Hub A Initializing the hub causes it to return to its factory default settings You may want to do this if the hub has been previously used in a different part of your network and its settings are incorrect for its new environment CAUTION Initializing the hub removes all configuration information such as security resilient links and passwords However the IP address subnet mask default router SLIP and console port information is retained to ensure you can continue management communication with the hub over the network To initialize the hub From the Configure menu select nitialize Quick Config Manager asks you to confirm the initialization In the confirmation dialog box click on OK The hub takes about 20 seconds to initialize itself You may need to select Reset View from the File menu to re establish communication with the hub gt CHAPTER 4 MANAGING YOUR HUB USING
65. ased management application for example Transcend Enterprise Manager reporting the state of the hub and the network Use the hub to monitor other devices on your network and report any deviation from their normal operation to an IP IPX based management application Poll a remote device to see if it is operational View any faults that have occurred with the hub Download any future software upgrades to the hub 16710 bk ABOUTMAN FRM Page 3 Tuesday October 7 1997 11 38 AM Connecting to the Hub and Managing 3 3 Connecting to the Hub and Managing Managing your hub is easy There are many ways you can connect your management station to your hub as shown in Figure 3 1 You can manage the hub Through the console port a Using Quick Config Manager Using a VT100 Terminal Emulator Using a VT100 Termina Over the network Using an IP IPX based Network Manager Using a VT100 Terminal Emulator through Telnet For information on using modems as part of your management connection see Remote Management Service on page 3 7 amp 16710 bk ABOUTMAN FRM Page 4 Tuesday October 7 1997 11 38 AM 3 4 CHAPTER 3 ABOUT NETWORK MANAGEMENT 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 By default the hub automatically configures its baud rate The maximum rate the au
66. at runs over Twisted Pair TP cable The OfficeConnect hub uses RJ45 type connectors for connecting your network 10BASE 2 is the name given to the Ethernet protocol that runs over Coaxial cable A Network Loop occurs when two pieces of network equipment are connected by more than one path Your hub detects this and Partitions isolates one of its ports to break the loop gt 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 Packets are the units of information your workstations and other equipment send to each other over the network A Frame is the data part of a packet It is the information that is seen by the hub Collisions are a part of normal Ethernet operation and occur if two or more devices attempt to transmit at the same time A sudden sustained increase in the number of collisions can indicate a problem with a device particularly if it is not accompanied by a general increase in traffic On coaxial segments an increase in collisions can also indicate faulty cabling Device is a term that is usually used to refer to a piece of network equipment Every device has a unique address that is used to identify it on the network 16710 bk GETSTART FRM Page 3 Tuesday October 7 1997 11 38 AM Networking Terminology 1 3 SNMP Simpl
67. ate Select whether polling of this device is to be enabled or disabled You can have up to 10 polling session entries for the hub poll 10 different devices all of which can be enabled If you do not want to poll a device now but want to keep its information for future use you can simply disable it by selecting Disable Click on OK Transcend Quick Configuration Manager Finance File View ehe Window Help Community Polling IP Setup General Info Reset Initialize General Info Finance Category WorkGroup Monitor QP Round Address Rate Trip Information MIB I 191 1 1 60 Once Oms No Information L_Cancet_ Resilience WorkGroup Add Remote Poll Finance Device IP Address 191 1 1 5 IPX Address Poll Rate Once every 5 minutes e Status Enable Disable Figure 4 17 Add Remote Poll Dialog Box When you have added a device to the WorkGroup Monitor table its entry is color coded Green Device being polled and communicating a Red Device being polled but is not communicating a Blue Device not being polled by the hub In the WorkGroup Monitor panel Address Shows the addresses of the polled devices Rate Shows the frequency at which the device is polled Round Trip Shows the time taken for the device to respond to the last poll Informatio
68. ation 4 18 vV version number flash EPROM 5 21 hardware 5 21 PROM software 5 21 very long events 4 25 View menu Activity Errors 4 19 Frame Types 4 21 Traffic 4 22 Zoomin 4 12 VT100 1 4 3 1 keys 5 3 problems 6 3 starting 5 6 VT100 screen areas 5 1 components 5 2 map 5 4 VT100 terminal 3 3 3 5 emulator 3 5 3 6 VT100 terminal connecting 3 5 WwW wake up procedure 5 6 wall mounting 2 7 Wichtige Sicherheitshinweise 8 window map 4 3 Windows 3 1 Workgroup dialog box 4 38 workgroup monitor failure 4 17 workstation connections 2 4 World Wide Web WWW C 1 Z Zoom view 4 12 gt LIMITED LIFETIME WARRANTY HARDWARE 3Com warrants its hardware products to be free from defects in workmanship and materials under normal use and service for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller Internetworking products One year Network adapters Lifetime Ethernet stackable hubs and Unmanaged Ethernet fixed port repeaters Lifetime One year if not registered Power supply and fans in these stackable hubs and unmanaged repeaters One year Other hardware products One year Spare parts and spares kits 90 days If a product does not operate as warranted above during the applicable warranty period 3Com shall at its option and expense repair the defective product or part deliver to Customer an equivalent product or part to replace the defective item or
69. ation on 3Com appendix describes these services Corporation s World Wide Web site by entering our Information contained in this appendix is correct at URL into your Internet browser time of publication For the very latest we http www 3Com com recommend that you access 3Com Corporation s World Wide Web site as described below This service features the latest information about p 3Com solutions and technologies customer service and support news about the company NetAge Magazine and more Online Technical Services 3Com offers worldwide product support 24 hours a day 7 days a week through the following online systems 3ComBBS contains patches software and drivers for i all 3Com products as well as technical articles This m World Wide Web site service is available through analog modem or digital m 3Com Bulletin Board Service 3ComBBS modem ISDN 24 hours a day 7 days a week 3Com Bulletin Board Service m 3ComFacts automated fax service Access by Analog Modem P m 3ComForum on CompuServe online service To reach the service by modem set your modem to 8 data bits no parity and 1 stop bit Call the telephone number nearest you amp 16710 bk PRODRANG FRM Page 2 Tuesday October 7 1997 11 38 AM c 2 APPENDIX C TECHNICAL SUPPORT Country Data Rate Telephone Number Australia up to 14400 bps 61 2 9955 2073 Brazil up to 14400 bps 55 11 547 9666 France up to 14400 bps
70. ay October 7 1997 11 38 AM Configuring Local Security 5 15 Configuring Local Security The Local Security screen as shown in Figure 5 8 is used for preventing various types of management connection This option is available only for users with security access level The Local Security screen shows a table displaying every combination of access method console port Telnet or SNMP and access level For example the top left field shows whether console port access by users with monitor access level is enabled or disabled 3Com OfficeConnect Local Security Honitor Secure Manager Specialist Security Monitor Serial Port Enabled Enabled E Enabled E HEnabled E Enabled Remote Telnet BEnabled E Enabled E Enabled E BEnabled E Enabled E Community SNMP HEnabled E HEnabled E HEnabled E BEnabled E HEnabled E OK CANCEL Figure 5 8 Local Security Screen amp 16710 bk MANVTI100 FRM Page 16 Tuesday October 7 1997 11 38 AM 5 16 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT100 The access levels are defined as Monitor This allows the user to view the essential operations of the hub and to establish whether or not the hub is operating correctly A user at this level cannot change the operating parameters of the hub Secure Monitor In this implementation Secure Monitor has the same rights as Monitor Manager This allows the user to monitor and change the operational parameters of the hub
71. ays the MIB II panel as Figure 4 5 MIB II Panel shown in Figure 4 5 amp 16710 bk MANAGING FRM Page 14 Tuesday October 7 1997 11 38 AM amp 4 14 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER sysDescr Shows the system description supplied by sysLocation Provides a box for you to type the the hub s Management Agent software location of the hub sysObjectld Shows the SNMP object identifier for sysServices Shows the services that the hub the hub s Management Agent software supports sysUpTime Shows the time that has elapsed since Refresh Refreshes the information in the panel the last reset sysContact Provides a box for you to type the name ofthe person who can be contacted in the event of a problem with the hub sysName Provides a box for you to type the name ofthe hub E gt sysContact and sysName use the same information as the Device Configuration fields in the IP Setup dialog box so if you change them the fields in the IP Setup dialog box change as well For information on the IP Setup dialog box see Giving the Hub an IP Address on page 4 7 gt 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 View what conditions have caused the Alert LED to light You can configure the Alert LED to light for Incorrect configurat
72. bes the ways you can connect your management station to your hub This guide uses Management Station to refer to the piece of equipment you are using to manage the hub Transcend Quick Configuration Manager referred to as Quick Config Manager in this guide is supplied with your hub and provides an easy to use graphical management system through the hub s console port Quick Config Manager uses a familiar Windows interface with point and click operation To use it effectively you need to be familiar with Microsoft Windows For information on Microsoft Windows refer to the Microsoft Windows User s Guide You can also manage your hub using a VT100 terminal or any Telnet facility that emulates a VT100 terminal VT100 uses a text based user interface 3Com Network Management Quick Config Manager provides a subset of the functionality that is present in other 3Com management applications for example the IP IPX based Transcend Enterprise Manager for Windows version 4 x and above Whether your network is large or small its ongoing performance growth and security are only as good as its management system Using intelligent 3Com software distributed throughout the network 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 informat
73. ce Field you can select one option only To cycle through the options press Space 005634 Text enclosed in square brackets on the screen Entry Field is an Entry Field Entry Fields allow you to enter data from the keyboard which may be text decimal or hexadecimal data In some cases there is a default entry To replace the default entry simply type in the monitor new value over it manager Password entry fields are hidden Anything security typed is not shown on the screen List Box To delete a single character use Delete on a VT100 terminal or Backspace on a PC Address Text not enclosed in markers or square Read only brackets is information that you cannot information change Text for a button is shown in upper case letters A button performs an action A menu screen such as the Main Menu consists of a number of buttons arranged in a column Other screens have a row of buttons at the bottom To select a button move the cursor to the button and press Return The OK and CANCEL buttons appear on many screens OK updates the hub according to the data in the fields of the screen then returns you to the previous screen CANCEL returns you to the previous screen without applying any changes A list box allows you to select one or more items from a list Selected items are indicated by an asterisk next to the item To select a single item move the cursor using the arrow keys until the item is highlighted then
74. ceConnect hub m A Warranty Registration card for you to fill out and return m Four rubber feet m Four stacking clips 1 10BASE T tions for all i t 3C m One 3 5 Transcend Quick Configuration Manager a OE ul lt p disk produce a range of easy to install network adapters which provide your workstations with 10BASE T m A Quick Reference Guide connections m This guide 2 An operating system with network support configured running on your workstations 3 One Straight through 10BASE T cable for every workstation or piece of equipment A Straight through cable is one where the pins of one connector are connected to the same pins of the other connector 10BASE T cables can be shielded or unshielded We recommend you use shielded The maximum length you can use is 100 meters 328 feet 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 internal wiring for example 1x 2X 3X Hub Connections If you have additional hubs you want to connect using 10BASE 2 Coax you need One 10BASE 2 50 Ohm cable for each additional hub The minimum cable length you can use is 0 5 meters 1 6 feet The maximum segment length you can have is 185 meters 607 feet One 10BASE 2 Y piece for each hub You can use T pieces but Y pieces provide adequate clearance of the other
75. ceConnect Hub 8 TPM uses community strings as a security measure to check management access to the hub The community string you use must match one of the community strings configured for the hub Quick Config Manager remembers the last community string used The default community strings are Community Polling m security allows you to view and configure the 22 hub s information m public allows you to view the hub s information Polling Bitmap minutes Graph s seconds To enter the community string Ed Invoke zoom view on start up 1 Double click on the Quick Config Manager icon to start the application Figure 4 2 Community Polling Dialog Box 2 From the Configure menu select Community Polling Quick Config Manager displays the gt Changes made to this dialog box will only take effect Community Polling dialog box as shown in for new windows Any graphs or zoom view windows Figure 4 2 that are already open will continue to use the old values Close these windows and reopen them to use 3 Enter the community string in the box the new values 4 Click on OK You can also use the Community Polling screen to Automatically display a graphical representation of the hub every time you start Quick Config Manager Define how regularly the graphical representation of the hub is updated Define how regularly any displayed graphs are updated Bitmap Off 15 30 45 60 The
76. down this information as you may need to enter it Name when managing the hub again Use this page to Emergency 3Com note down your settings Contact Support 3Com If you initialize the hub the address settings are Contract retained to allow you to continue managing the P Address 0000 hub If you want to return the hub to its default address settings you must enter them manually anes 0 0 00 P ae Mask For information on configuring the hub s address settings see Giving the Hub an IP Address on Serial Line 192 168 101 1 page 4 7 IP Address Subnet 255 255 255 0 Mask Router 0 0 0 0 IP Address Manager 0 0 0 0 IP Address amp 16710 bk ABOUTGUILFRM Page 1 Tuesday October 7 1997 11 38 AM ABOUT THIS GUIDE Introduction How to Use This Guide This guide describes how to set up and manage the This table shows where to find specific information OfficeConnect Hub 8 TPM The hub is ready for use in your network It does not require management to If you are looking for information on Turn to get it working Management simply allows you to The hub and networking terms Chapter 1 perform additional network functions for example A RR Creating your network Chapter 2 p monitoring your network and adding security What you can do with management and the Chapter 3 This guide is written for users who are new to different ways you can manage your hub networking If you are going to manage your Managing your hub using 3Com s T
77. dress table The maximum number of addresses learned by the ports is determined by the value shown in the No of Addresses field When the table is full the port continues to learn new addresses overwriting the addresses it learned previously The port never automatically switches to full security for example Auto Learn you have to do this manually While learning packets received on a port are not repeated out of the other ports Auto Learn The port learns the MAC addresses of the devices transmitting to this port and stores them permanently in its address table The maximum number of addresses learned by the ports is determined by the value shown in the No of Addresses field When the table is full the port automatically switches to Full Security mode and no other address are allowed to connect to this port While learning packets received on a port are not repeated out of the other ports Full Security Learning is disabled and only the addresses entered as authorized addresses for this port are allowed to transmit If an unauthorized address is detected a trap will be sent if traps are configured to an IP IPX based management station and the port is disabled if Disable on Intrusion is selected gt 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
78. e Network Management Protocol is a protocol that controls how a management station gains information from a device SNMP provides A set of rules that define how a management station can communicate with a device A MIB Management Information Base that defines what information can be obtained from the device by the management station Every SNMP manageable device has a MIB which is a list of information about it Unsolicited messages called Traps which work differently to the usual request reply management communication You can configure a device so that it generates a trap if a certain condition occurs for example a port partitioning The trap is sent to the management station to inform it of the occurrence amp 16710 bk GETSTART FRM Page 4 Tuesday October 7 1997 11 38 AM 1 4 CHAPTER 1 INTRODUCTION IP Internet Protocol is a data communication protocol used to connect computers and data equipment into computer networks It is used on a large international network called the Internet which is composed of universities government facilities research institutions and private companies IPX is a Novell Netware protocol that performs a similar function to IP SLIP Serial Line Internet Protocol allows you to run the IP protocol over a serial line connection p VT100 is a type of terminal which uses ASCII characters VT100 screens have a text based appearance Telnet is a network application which enables a works
79. eal for creating a small network It is compact and attractively designed for desktop use and is part of the OfficeConnect range which neatly stack together with clips providing a host of facilities for example print sharing and a network fax For information on these products see 3Com provides easy access to technical support information through a variety of services This appendix describes these services on page C 1 Figure 1 1 Small Network Featuring OfficeConnect Hub And Optional Print Server If you need to connect more workstations simply connect and clip another OfficeConnect hub to form gt 16710 bk GETSTART FRM Page 2 Tuesday October 7 1997 11 38 AM 1 2 CHAPTER 1 INTRODUCTION a stack each hub is a single repeater The OfficeConnect Hub 8 TPM has eight 10BASE T ports and a ninth 10BASE 2 Coax port This guide helps you get the most out of your hub Networking Terminology A Network is a collection of workstations for example IBM compatible personal computers and other equipment for example printers connected for the purpose of exchanging information Networks vary in size some are within a single room others span continents A Local Area Network LAN is a network usually in an office that spans no more than a single site Ethernet is a type of LAN referring to the technology used to pass information around the network 10BASE T is the name given to the Ethernet protocol th
80. ect hub by disconnecting the power adapter from the unit or from the socket outlet This unit operates under SELV conditions Safety Extra Low Voltage according to IEC 950 the conditions of which are maintained only ifthe equipment to which it is connected is also operational under SELV There are no user replaceable fuses or user serviceable parts inside the hub If you have a physical problem with the unit that cannot be solved with problem solving actions in this guide contact your supplier Disconnect the power adapter before moving the unit WARNING Twisted Pair RJ45 ports These are shielded RJ45 data sockets They cannot be used as telephone sockets Only connect RJ45 data connectors to these sockets gt ACHTUNG Die Warnungen enthalten Anweisungen die Sie zur eigenen Sicherheit zu befolgen haben Lesen Sie bitte die folgenden Informationen sorgfaltig durch bevor Sie den Hub einbauen Auf besondere Vorsicht mu w hrend des Ein und Ausbaus des Hubs geachtet werden Stapeln Sie den Hub nur mit anderen OfficeConnect Hubs zusammen Verwenden Sie nur das mit dem Hub mitgelieferte Netzteil um die internationalen Sicherheitsstandards zu erf llen Die Netzsteckdose mu sich in unmittelbarer N he des Hubs befinden und frei zug nglich sein Sie k nnen den Hub nur spannungsfrei schalten indem Sie das Steckernetzteil aus der Netzsteckdose ziehen oder die Verbindung zum Ger t unterbrechen 16710 bk IMSA
81. ency contact 4 9 enable port 4 25 entry fields 5 2 environment A 1 equipment connecting 2 7 error rate 4 18 Ethernet 1 2 expanding your network C 1 F fax service See 3ComFacts FCS errors 4 24 feet 2 6 Flash EPROM software revision 5 21 flow control 5 15 frame 1 3 Frame Types chart broadcast frames 4 22 multicast frames 4 22 unicast frames 4 22 G general information device 4 13 getting started 1 1 glossary 1 2 graphical representation ofthe hub 4 7 4 12 H hardware revision 5 21 how IP addresses work B 3 how to use this guide 1 hub clipping 2 6 connecting equipment 2 7 connecting to another hub 2 8 connections 2 5 double clicking 4 12 general information 4 13 getting started 1 1 graphical representation 4 7 4 12 initializing 4 11 IP address 4 7 managing 3 2 monitoring other devices 4 37 port configuration 4 25 positioning 2 5 problems 6 2 resetting 4 11 security 4 28 siting 2 5 statistics 4 19 wall mounting 2 7 hub level security 4 31 HyperTerminal 3 5 image file name 5 22 implementation overview 2 1 Important Safety Information 7 inactivity timer 5 9 in band management 3 6 initializing the hub 4 11 installating Quick Config Manager 4 1 Internet protocol 1 4 IP 1 4 3 1 4 7 IP address 4 9 B 1 allocation of B 2 16710 bk 16710 IX Page 121 Tuesday October 7 1997 11 38 AM network manager 5 13 obtaining an B 2 IP Configuration d
82. er from accessing the hub If you require more information about SLIP read the Internet Activities Board document RFC 155 SLIP SubNet Mask Enter a suitable subnet mask For a class C address 255 255 255 0 the default setting is suitable If you change this field reset the hub to effect the change If you are using SLIP ensure that Flow Control is not set to XON XOFF For information on the console port see Connecting a Modem to the Console Port on page 5 13 Configuring and Viewing Setup Information 5 11 BOOTP Select Enabled Disabled When enabled BOOTP allows you to download the IP address the SubNet Mask and the Router IP address from a BOOTP server on your network When operative BOOTP checks that a valid IP address is not installed before sending out requests for the data It continues sending requests for data until one of three conditions is satisfied a BOOTP is disabled A valid BOOTP reply is received You enter the address manually When the IP parameters have been received the hub resets automatically The following four fields are used for IPX addressing IPX Network This field shows the address of the network for this protocol This address is learned automatically from the local IPX router or NetWare File Server and you should not need to change it Node This field shows the node address of the hub which is learned automatically amp 16710 bk MANVT100 FRM Page 12 Tuesday Oct
83. es your particular terminal emulation package for details or consult your supplier if you need further advice amp 16710 bk ABOUTMAN FRM Page 7 Tuesday October 7 1997 11 38 AM Remote Management Service 3 7 Refer to Chapter 5 for information on performing additional management using the VT100 management interface Remote Management Service The 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 This allows your supplier to know immediately when certain problems occur so they gt can act on it leaving you to carry on with your work Contact your supplier to find out if they are offering a support service based on this feature amp 16710 bk ABOUTMAN FRM Page 8 Tuesday October 7 1997 11 38 AM 3 8 CHAPTER 3 ABOUT NETWORK MANAGEMENT amp 16710 bk MANAGING FRM Page 1 Tuesday October 7 1997 11 38 AM 4 ee gt gt 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 The sections in this chapter are in the order you would normally perform them when managing the hub for the first time If you are new to network management read through this chapter to learn about the different management you can perform Quick Config Manager has a comprehensive help system that has the same useful info
84. ess The information that you enter during the Easy Setup process is the same as and is entered into the IP Setup dialog box amp 16710 bk MANAGING FRM Page 8 Tuesday October 7 1997 11 38 AM CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER To display the IP Setup dialog box and view or configure the hub s address settings 1 From the Configure menu select IP Setup Quick Config Manager displays either the IP Setup dialog box or the Easy Setup Option as shown in Figure 4 3 depending on what IP information is currently configured for the hub If an IP address has been configured for the hub and it is not 0 0 0 0 the IP Setup dialog box is displayed If you have previously configured address information for the hub but want to go through the Easy Set Up option again you can start it by clicking on the Easy Set Up button If no previous IP information has been configured for the hub or the IP address is configured as 0 0 0 0 and the Enable IP box is checked the Easy Setup option is started If you want to enter information directly into the IP Setup screen or abort the Easy Setup process select Abort The Easy Setup option asks you if you want to manually configure the hub for IP If you have a BOOTP server that automatically allocates IP addresses select No otherwise select Yes Transcend Quick Configuration Manager Finance File View eGhitics Window Help Community Polling IP Setup
85. etwork cabling at the port Try accessing the hub through a different port If you can now access the hub a problem with the original port is indicated Re examine the connections and cabling Possibly there is a network problem preventing you from accessing the hub over the network Try accessing the hub through the console port and reset the hub amp 16710 bk PROBSOLV FRM Page 6 Tuesday October 7 1997 11 38 AM 6 6 CHAPTER 6 PROBLEM SOLVING amp 16710 bk DIMSNSTA FRM Page 1 Tuesday October 7 1997 11 38 AM A DIMENSIONS STANDARDS AND CABLING Dimensions and Operating Environment 18 VA l 61 BThU hr 220 mm 8 7 in power requirement 0 40 C 32 105 F Ib SSS on in operating S temperature N gt 185 4 mm 7 3 in 0 90 15 2 mm 0 6 in non condensing i humidity 965 g 2 11 Ib for coaxial port 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 This can be achieved using the console port and an approved modem amp amp Standards Functional ISO 8802 3 IEEE 802 3 Safety UL 1950 EN 60950 CSA 22 2 950 EMC EN 55022 Class B EN 50082 1 FCC Part 15 Class B certified CSA C108 8 Class B VCCI Class 2 screened shielded cables must be used to ensure compliance
86. ger Finance File Ba Configure Window Help Activity Errors Frame Types Traffic Errors Port Configuration Unit 1 Port 1 Category Security Configuration Authorised Addresses MAC Address 00 26 36 58 4F AO 00 2636FCE25D Add Security No of Addresses 2 max 34 DUD Need to Know Access Control Disable No Restriction Enabled Continually Learn Allow Broadcasts Auto Learn Allow Broadcasts and Multicasts Full Security C Disable on Intrusion To see more options click on the category list at left Figure 4 12 Port Security Configuration Panel amp 16710 bk MANAGING FRM Page 30 Tuesday October 7 1997 11 38 AM CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER MAC Address Allows you to enter the MAC address for a device to be authorized to transmit through this port When you have typed the MAC address click on lt Add Use the format XX XX XX XX XX XX for the MAC address lt Add Adds the MAC address to the Authorized addresses list Remove Removes the selected address or addresses from the Authorized Address list DUD Disconnect Unknown Device Allows you to p configure the learning and security mode of the port No Restriction Disables all security and learning features Continually Learn The port learns the MAC addresses of the devices transmitting to this port and stores them in its ad
87. he Hub 4 13 Setting Up the Alert LED 4 15 Monitoring 4 18 Monitoring Activity and Errors Statistics 4 19 Frame Types Statistics 4 21 Network Traffic Statistics 4 22 Network Errors Statistics 4 23 Configuring a Port 4 25 Hub Security 4 28 Configuring Security at Port Level 4 29 Configuring Security at Hub Level 4 31 Resilience 4 33 16710 bk 16710 TOC Page iv Tuesday October 7 1997 11 38 AM Setting Up a Resilient Link Pair 4 34 Using the Hub to Monitor Other Devices 4 37 Additional Management 4 39 ADDITIONAL MANAGEMENT USING VT100 VT100 User Interface 5 1 Screens 5 1 Screen Components 5 2 Special Keystrokes 5 3 Repeater Unit and Port Screens 5 4 Screen Map 5 4 Getting Started 5 6 Main Banner 5 6 Logon 5 7 Main Menu 5 9 Logoff 5 9 Auto Logout 5 9 Configuring and Viewing Setup Information 5 10 Setting Up Traps 5 12 Connecting a Modem to the Console Port 5 13 Configuring Local Security 5 15 Configuring Users 5 17 Creating Users 5 17 Editing Users 5 18 Deleting Users 5 19 Polling a Remote Device 5 19 gt Viewing Internal Version Numbers 5 20 Downloading a Software Upgrade 5 21 PROBLEM SOLVING Isolating a Problem 6 1 Problems When Using Your Hub 6 2 Problems When Using Quick Config Manager 6 3 Problems When Using VT100 6 3 Problems When Using an IP IPX based Management Application 6 4 DIMENSIONS STANDARDS AND CABLING Dimensions and Operating Environment A 1 BABT Approval
88. ialog box 4 8 IP IPX based network management application 3 6 IPX 1 4 3 1 address B 6 network 5 11 network manager address 5 13 isolate 1 2 isolating a problem 6 1 K keys VT100 5 3 L L information de S curit Importante 9 LAN 1 2 last restart type 5 21 late events 4 25 learn stations 4 27 LEDs 2 1 links main and standby 4 33 state 4 27 traps 4 27 list box 5 2 local area network 1 2 Local Security screen 5 15 login violation 4 17 logoff 5 9 logon 5 7 P Logon screen 5 7 loop 1 2 2 8 M MAC address 4 25 5 10 Main Banner screen 5 6 main link 4 33 Main Menu screen 5 9 management connections 3 3 settings A 4 station 3 1 tasks 3 2 management facility VT100 logoff 5 9 logon 5 7 starting 5 6 manager IP address 4 10 managing over the network 3 6 through the console port 3 4 with IP IPX based network management application 3 6 with Quick Config Manager 3 5 with VT100 terminal 3 5 with VT100 terminal emulator 3 5 3 6 your hub 3 2 map Quick Config Manager windows 4 3 VT100 screens 5 4 MDI MDIX switch 2 10 4 34 media type 4 27 MIB 1 3 4 13 amp 16710 bk 16710 IX Page 122 Tuesday October 7 1997 11 38 AM MIB II dialog box 4 modem 1 4 5 13 modem dial out 3 monitor failure 4 1 monitoring 4 18 1 13 A 4 7 7 other devices 4 37 mounting 2 7 multicast frames 4 22 N Need To Know 4 28 NetWare file server network 1 2 error rate 4 18 p expanding C 1
89. ing Telnet or SLIP the wake up procedure is performed automatically When the wake up procedure is successfully completed the main banner is displayed as shown in Figure 5 2 Press Return to display the Logon screen gt 16710 bk MANVT100 FRM Page 7 Tuesday October 7 1997 11 38 AM amp gt 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 The console port s autoconfigure option only operates if your terminal uses correct parameters The maximum speed is 19200 baud For information on the console port see Connecting a Modem to the Console Port on page 5 13 Autoconfigure is disabled If you are unable to obtain the banner screen it is possible that the autoconfigure option has been disabled Check the configuration of the terminal If you cannot resolve the problem refer to Problems When Using VT100 on page 6 3 for more problem solving information Getting Started 5 7 Logon You must enter your user name and password in the Logon screen as shown in Figure 5 3 before you can use the management facility Con OfficeConnect Logon User Name Password 1 OK Figure 5 3 Logon Screen gt 16710 bk MANVT100 FRM Page 8 Tuesday October 7 1997 11 38 AM 5 8 CHAPTER 5
90. ing a Port on page 4 25 f you double click on anything other than a port the General Info dialog box is displayed This is used to configure information for the hub see Displaying nformation About the Hub on page 4 13 amp 16710 bk MANAGING FRM Page 13 Tuesday October 7 1997 11 38 AM Displaying Information AbouttheHub 4 13 e Transcend Quick Configuration Manager Finance Displaying Information About the Hub File View EONI Window Heip Community Polling Quick Config Manager enables you to display en General Info detailed information about the hub This information Tr is stored within the hub in a list called a MIB Initialize Management Information Base The MIB defines what information can be obtained from the hub by cau rn ategory il an SNMP network management station a To display this information ea BONS e sysObjectld 1 3 6 1 4 1 43 1 8 21 Resilience N 3 1 Do one of the following Sod me ee a a en g sysContact ABC Suppliers 3c4297abc Double click on the graphical representation of the hub but not on a port sysName Finance sysLocation Finance department From the Configure menu select General Info sysServices physical Security 2 In the General Info dialog box select the MIB II category To see more options click on the category list at left Quick Config Manager displ
91. ion a Low 12 network utilization 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 Following a period of excessive network activity the Alert LED stays lit for a short period of time Network Error Rate High Med Low Disabled Allows you to specify whether the Alert LED lights if a certain level of network errors is exceeded for approximately one minute The levels are a High 100 errors per 10000 frames Med 10 errors per 10000 frames Low 1 error per 10000 frames 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 You can quickly and easily monitor your network by viewing various types of network information Activity and errors Frame types Network traffic Network errors The information is displayed as a graph or pie chart and can be helpful for spotting and isolating any potential network problems you may have To view general information for the hub see Displaying Information About the Hub on page 4 13 amp 16710 bk MANAGING FRM Page 19 Tuesday October 7 1997 11 38 AM Monitoring 4 19 Monitoring Activity and Errors Statistics Transcend Quick Configuration Manager Finance File BYE Configure Window Help Activity Errors Frame Types Traffic Errors L Quick
92. ion about which Transcend management application can benefit your growing network call your local sales office see 3Com provides easy access to technical support amp 16710 bk ABOUTMAN FRM Page 2 Tuesday October 7 1997 11 38 AM 3 2 CHAPTER 3 ABOUT NETWORK MANAGEMENT information through a variety of services This appendix describes these services on page C 1 Why Manage Your Hub With management you can change and view the way your hub and network operates m Configure IP information for the hub so that an IP based network management station can communicate with it m Restart the hub to refresh its statistics and use any new configurations m Initialize the hub to return it to its factory settings p IP and console port information is retained m Display a graphical representation of the hub to quickly view the status of each port m Display general hub information m Configure the Alert LED to light for a number of conditions and show what conditions have triggered the Alert LED to come on Graphically display network information for each port and the hub m Enable and disable ports 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 Configure the hub to send messages over the network or a modem link to an IP IPX b
93. ions lf there is a network loop due to an incorrect configuration in your network a port partitions The coaxial port automatically partitions if it is not used Security Violations If an unsuccessful login attempt occurs or a device that is not known to your hub tries to communicate with it a violation occurs This may be due to someone trying to gain unauthorized access to your network 16710 bk MANAGING FRM Page 15 Tuesday October 7 1997 11 38 AM Setting Up the Alert LED 4 15 Poll Failures If your hub has been configured to monitor a device it periodically polls it for information If the device fails to respond the failure is seen by the hub Network Errors If the network has high volumes of communication or there is a high amount of errors with the communication it could be due to too many devices on your network or an incorrectly configure device By default the Alert LED is configured to light if a 10BASE T port is partitioned or if there is high network utilization over 80 To configure the Alert LED Do one of the following Double click on the graphical representation of the hub but not on a port a From the Configure menu select General Info In the General Info dialog box choose the Alerts category Quick Config Manager displays the Alerts panel as shown in Figure 4 6 gt 16710 bk MANAGING FRM Page 16 Tuesday October 7 1997 11 38 AM 4 16 CHAPTER 4 MAN
94. ir Figure 4 14 A Failed Link Between Two Hubs gt 16710 bk MANAGING FRM Page 34 Tuesday October 7 1997 11 38 AM CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Resilient Links are available over twisted pair media 10BASE T because it carries a link test pulse which is used to decide whether the main link has failed and the standby link should take over However there is no such link signal over coaxial media 10BASE 2 so you cannot set up resilient links using the hub 10BASE 2 Coax port If you have more than two hubs there are a number of ways you can use resilience when linking them 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 If the main link fails the standby link becomes active If the fault with the main link is solved the standby link stays active and the main link acts like a standby link You can use management to view the status of your links and to send traps messages to an IP IPX based network management application if anything changes Setting Up a Resilient Link Pair To set up a resilient link pair you need to manage the hub that both links in the pair are connected to You can set up t
95. isted Pair d Pai Twisted Pair 1 i Twisted Pair Twisted Pair Twisted Pair Twisted Pair Figure 4 16 Create Resilient Pair Dialog Box In the Resilience Links panel Main Port Shows the port number of the main link Standby Port Shows the port number of the standby link Link State Shows whether the resilient link pair is operational or not When operational either the main port or the standby port can repeat traffic Main State Standby State Shows whether the main or the standby link is the active link in the resilient link pair Refresh Refreshes the information in the panel Create Displays a dialog box which you can use to create new resilient link pairs by choosing the main and standby links in the resilient link pair amp 16710 bk MANAGING FRM Page 37 Tuesday October 7 1997 11 38 AM Using the Hub to Monitor Other Devices 4 37 Delete Removes the resilient link pair from the table when an entry in the resilience table is selected If Using the Hub to Monitor Other Devices you delete an entry in the resilience table the current active link remains enabled and the current standby link is cancelled Your hub can be used to monitor other devices on your network and to notify an IP IPX based network management application should a problem occur gt If the main link fails the standby link becomes active If with a ee on to it The hub eie oe the fault with the main link is solved the standb
96. low you to communicate with the hub over the network called in band management Before you can manage your hub over the network using IP you must connect to its console port locally and use Quick Config Manager to enter IP information for the hub Connect one end of a null modem cable to the console port on the hub and the other to the serial RS232 port on your management station Install Quick Config Manager and use it to configure the necessary IP information for the hub Refer to Chapter 4 for information on installing and using Quick Config Manager 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 The use of IP IPX based network management applications is not described in this manual Refer to the user documentation that accompanies your application for more information Using a VT100 Terminal Emulator over Telnet Any VT100 terminal emulator that uses Telnet should be able to communicate with the hub over the network Up to three active management sessions can access the hub concurrently If a connection to a session is not closed but is lost inadvertently the connection is closed by the hub after between 2 and 3 minutes of inactivity Refer to the documentation that accompani
97. n Shows the number of routers through which the hub communicates with the device or any information gathered during the poll You can edit or delete a Remote Poll by selecting it from the panel and clicking on the appropriate button 16710 bk MANAGING FRM Page 39 Tuesday October 7 1997 11 38 AM Additional Management 4 39 Additional Management If you want to perform any of the following additional management use the VT100 screens refer to Chapter 5 View the MAC address Specify IPX information Connect a modem to the console port Create new users with different community strings and disable different access methods Poll a remote device to see if it is working View the versions of the hub s internal software and hardware Download new software to the hub amp 16710 bk MANAGING FRM Page 40 Tuesday October 7 1997 11 38 AM 4 40 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER amp 16710 bk MANVTI100 FRM Page 1 Tuesday October 7 1997 11 38 AM gt ADDITIONAL MANAGEMENT gt USING VT100 e This chapter describes the additional management tasks you can perform using VT100 For an overview ofthe management you can perform and the different ways you can make a management connection to the hub see Chapter 3 Only the additional management screens are described in this chapter For information on what the other screens do refer to the corresponding Quick Config Manager
98. n of the hub SmartAgent software you can obtain the software image from 3Com bulletin board services see 3Com provides easy access to technical support amp 16710 bk MANVTI100 FRM Page 22 Tuesday October 7 1997 11 38 AM 5 22 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT100 information through a variety of services This concern for a successful download as it always result appendix describes these services on page C 1 in a correct trap status p gt The software download can be performed through a serial connection over SLIP but it is much faster over the network File Name Enter the name of the file that contains the software image to be downloaded to the hub You must place the image file where it is accessible to the TFTP load request Check with your supplier if amp you are unsure where to place the image file gt You may wish to download the file from another directory If so you must give the full path to the file and the filename using a maximum of 30 characters Server Address Enter the IP or IPX address of the device where the software file containing the image ofthe management facility can be found OK Select this button to start the software download When the download is complete the hub is reset gt If the software download fails any traps that are sent to an IP IPX based network manager reporting the failure may indicate an incorrect status This is not a amp 16710 bk PROBSOLV FRM P
99. nada 04 22 97 gt INDEX Numerics 10BASE 2 1 2 2 5 connecting hubs 2 9 segment 1 3 10BASE T 1 2 2 4 2 5 A 2 connecting hubs 2 10 3Com Bulletin Board Service 3ComBBS C 1 3Com sales offices C 4 3Com URL C 1 3ComFacts C 2 3ComForum C 3 A about network management 3 1 access levels 5 17 manager 5 16 monitor 5 16 secure monitor 5 16 security 5 16 specialist 5 16 access method 5 15 accessing the hub 4 6 Activity and Errors graph broadcast frames 4 20 collisions 4 20 readable frames 4 20 runts 4 20 16710 bk 16710 IX Page 119 Tuesday October 7 1997 11 38 AM total errors 4 20 additional management 4 39 Alert LED 4 15 checking 6 1 testing 4 16 Alerts dialog box 4 15 alignment errors 4 24 assigning IP addresses B 5 attached station 4 27 authentication failure 4 17 authorized addresses 4 29 Auto Logout screen 5 9 autoconfiguration 3 4 5 6 B before you start 2 4 bitmap 4 7 4 12 BOOTP 5 11 select 5 11 broadcast frames 4 20 4 22 bulletin board service C 1 buttons 5 2 C cabling A 2 char size console port setup 5 15 checking hub connections 2 11 choice fields 5 2 classes B 3 clipping hubs together 2 6 clips 2 6 coaxial 1 2 collision 1 3 4 20 colors device monitoring 4 39 port 4 12 resilient link pair 4 35 COM port changing 4 3 community SNMP access 5 16 community string changing 5 18 entering 5 17 hub 4 6 network manager 5 13 trap 5 13 Community
100. nd updates action rs internic net computer operations mailserv rs internic net automatic mail service info internic net automatic mail service for general enquiries refdesk is internic net enquiries not handled by the services above Europe RIPE Attention RIPE NCC Kruislaan 409 NL 1098 SJ Amsterdam The Netherlands Telephone 31 20 592 5065 Fax 31 20 592 5090 e mail ncc ripe net amp 16710 bk IPADDRES FRM Page 3 Tuesday October 7 1997 11 38 AM Asia Pacific Network Information Centre APNIC DOM Attention amp Admin Contact Telephone e mail Technical Contact Telephone Fax e mail Asia Pacific Network Information Centre APNIC DOM c o Computer Centre University of Tokyo 2 11 16 Yayoi Bunkyo ku Tokyo 113 Japan Nakayama Masaya MN89 81 3 3812 2111 ext2720 nakayama nic ad jp Conrad David DC396 81 3 3580 3781 or 81 3 3580 3784 81 3 3580 3782 davidc apnic net IP Addresses B 3 How IP Addresses Work To make internet addressing easier to understand IP addresses are written in dotted decimal notation for example 191 0 0 72 1011111 1 00000000 00000000 01001000 in binary The IP address field is affected by Classes Subnets Classes Depending on the Class or type of the IP address there are many ways that the address field can be divided into a network number and a device number The number used to convey how an IP addres
101. nt can occur if you have a Local Area Network that is longer than Ethernet standards allow for example more than four repeaters in series or excessively long segments Very Long Events Shows the number of frames that caused Jabber Lock Up protection to operate Jabber Lock Up is when a transceiver turns itself off if it starts uncontrollably transmitting Isolate the source and change the transceiver or network adapter in the device to see if this eliminates the problem Rate Mismatch Shows the number of frames whose timing was outside the permitted range This may indicate a non compliant device on your network Isolate the source and change the transceiver or network adapter in the device to see if this eliminates the problem The values shown in the Network Errors graph are per poll period not per second To change the poll period see Accessing the Hub on page 4 6 16710 bk MANAGING FRM Page 25 Tuesday October 7 1997 11 38 AM Configuring a Port 4 25 Configuring a Port Quick Config Manager allows you to configure how individual ports operate enabling you to introduce some simple security to your network The hub provides more complete security which you can configure for the ports see Hub Security on page 4 28 For each port you can configure it To be enabled or disabled To send traps messages to an IP IPX based network management application if the port changes state for example the port
102. o 4 resilient link pairs for the hub When you set up your resilient link pair you only need to specify the ports that the main link and standby link are connected to Resilient Link Rules Always follow these rules when setting up a resilient link pair Configure the resilient link pair at only one end of the link In other words only one hub controls each resilient link pair you set up Each resilient link pair can only have one main link and one standby link Each link must not belong to more than one resilient link pair For a port that is part of a resilient link pair a Do not disable the link pulse generation a Do not enable security for the port amp 16710 bk MANAGING FRM Page 35 Tuesday October 7 1997 gt CAUTION Remember that you must always follow the hub connection requirements when linking hubs together which involves the use of port 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 Crossover cables allow you to make a connection between two MDIX ports Contact your supplier for information on doing this To set up a resilient link pair Disconnect the hub which is to provide the standby port from the network We recommend you do this even though it is possible to set up links while still connected to avoid loops being formed accidently Do one of the following Double click on the graphical rep
103. ober 7 1997 11 38 AM amp 5 12 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT100 Status Enabled Disabled This field shows whether the data link protocol is Setting Up Traps enabled Choose Disabled if you wish to prevent access for any reason such as security considerations The Trap Setup screen as shown in Figure 5 6 is used to set up traps Traps are messages sent across the network to an IP IPX based network management application which inform the network manager of the status of your hub Data Link Protocol This field shows the name of the IPX data link layer protocol OK Press Return when the OK button is highlighted to action your selections for this screen You are returned to the Main Menu 3Com OfficeConnect Trap Setup IP or IPX Address Community String Throttle milli p Ifyou have changed the parameters you need to ORREN security 1 Te amp 191 1 1 15 public 1968 reset the hub to effect the changes 191 1 1 214 1 security 1 a E public 166 public 1968 bli 166 SETUP TRAPS Press Return when the SETUP TRAPS i bL 1 Han a 4 publi 1 166 button is highlighted to set up the parameters for Pre traps OK CANCEL CONSOLE PORT Press Return when the CONSOLE PORT button is highlighted to set up the console port Figure 5 6 Trap Setup Screen parameters CANCEL Press Return when the CANCEL button is gt Your Transcend IP IPX based network man
104. ors Update Zoom Reset View General Info Reset Zoom In Initialize Zoom In Finance Port color coding Green Port enabled and capable of receiving and transmitting traffic Red Port enabled and partitioned or port enabled but the connection is lost Errors Blue Port disabled by management Traffic Frame Types ActivitylErrors Port Configuration Unit 1 Port 1 4 28 Sr Security Configuration Total Errors E Runts Port STETTEN 4 24 ater a 5 Readable Fromes MM Broadeast Frames cis 2 3 isi HE Collisions Media Type Twisted Pair 3 5 Partition State Not Partitioned ls 2830 Link State Present 5 2264 Security RT 2 Enable Disable eee i 2 ctivity Port State Flames amp 1698 Link Traps Partition Traps Le Traffic E 1132 Learn Stations Errors i 566 Attached Station View Station Address 00 26 36 58 4F AQ Congestion Time To see more options click on the category list at left Figure 4 1 Quick Config Manager Window Map amp 16710 bk MANAGING FRM Page 5 Tuesday October 7 1997 11 38 AM Quick Config Manager Window Map 4 5 Community Polling 4 6 Community String Read Write EM Poling 7
105. partitions or its connection is lost To learn the MAC address hardware address of the device connected to it Enabling a port allows it to repeat information to and from the network Disabling a port prevents it from repeating information onto the network We recommend that you disable any unused ports to prevent unauthorized use amp 16710 bk MANAGING FRM Page 26 Tuesday October 7 1997 11 38 AM amp 4 26 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER You can configure a port so that it sends a trap to a network management application when the status of i BA Activity Errors the link changes for example if a device is Erame Types connected to or disconnected from the port or no when the port partitions You can also configure a Z port to store the source address of frames received by the port this enables you to detect which devices are attached to each port of the hub Port Configuration Unit 1 Port 1 To configure a port Category Darel hl n 7 x Media Type Twisted Pair 1 From the View menu select Zoom In to display the en p representation of the hub 3 Se ane amp Security Enable Disable En Port State amp E aska Link Traps D Frames Partition Traps O Traffic Learn Stations KE O Errors 2 Double click on the port you want to configure 3 In the Port Configuration dialog box choose the Info categ ory Address 00 26 3
106. ports Two 10BASE 2 50 Ohm terminators end pieces If you have additional hubs you want to connect using 10BASE T you need One Straight through 10BASE T cable for each additional hub 16710 bk CREYRNET FRM Page 5 Tuesday October 7 1997 11 38 AM Positioning the OfficeConnect Hub 2 5 Positioning the OfficeConnect Hub When installing your OfficeConnect hub ensure It is out of direct sunlight and away from sources of heat Cabling is away from power lines and fluorescent lighting fixtures and sources of electrical noise such as radios transmitters and broadband amplifiers Water or moisture cannot enter the case of the unit Air flow around the unit and through the vents in the side of the case is not restricted We recommend you provide a minimum of 25 4 mm 1 in clearance amp 16710 bk CREYRNET FRM Page 6 Tuesday October 7 1997 11 38 AM 2 6 CHAPTER 2 CREATING YOUR NETWORK Using the Rubber Feet and Stacking Clips The four self adhesive rubber feet prevent your hub existing unit existing unit Li from sliding around on your desk Stick the feet to issmall use lt is large use these holes g 1 these hole the marked areas at each corner of the underside of NS your hub The four stacking clips are used for neatly and securely stacking your OfficeConnect units together You can stack up to a maximum of four units Large units must be stacked below small units 22 To st
107. power adapter that is supplied with Can be used to connect your management station Affects the operation of port 8 If you are the OfficeConnect hub Do not use any other to the hub see Chapter 3 connecting to a workstation set to MDIX out adapter If you are connecting to another OfficeConnect hub set to MDI in See Connecting Hubs Using 10BASE T on page 2 10 i Ss le ole els ls oe to a Eight 10BASE T RJ45 ports Use 10BASE T cable with RJ45 connectors You can connect the OfficeConnect hub to any workstation EiL 4 x lt o CY POWER jp RESET CONSOLE COAX Coaxial port or piece of equipment that has a 10BASE T port Reset button Can be used to connect your hub to other Port 8 can be used to link to another This restarts the hub which has the same effect as OfficeConnect hubs and equipment with 10BASE 2 OfficeConnect hub see Connecting Hubs Using powering the hub off and on cabling If used it is effectively a ninth port 10BASE T on page 2 10 Figure 2 2 The Ports And How To Use Them P P amp 16710 bk CREYRNET FRM Page 4 Tuesday October 7 1997 11 38 AM amp 2 4 CHAPTER 2 CREATING YOUR NETWORK Workstation Connections Before You Start To connect workstations and other equipment to Your OfficeConnect hub comes with your hub you need m One power adapter for use with the Offi
108. press Return To select more than one item for each item move the cursor until the item is highlighted then press Space to select the item pressing Space again deselects the item When all the desired items are selected press Return gt 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 the next Ctrl B Moves the cursor to the next button When you have finished entering or changing data Ctrl B is very useful for skipping over the remaining fields Ctrl P Returns you to the previous screen without actioning any inputs Ctrl R Refreshes the screen Ctrl K Displays a list of the possible keystrokes gt 16710 bk MANVT100 FRM Page 3 Tuesday October 7 1997 11 38 AM VT100 User Interface 5 3 If you are using Telnet or a terminal emulation program you may find that some control keys do not operate or that they activate other functions The Windows terminal emulator uses CtrlJ H as backwards deletion whereas others use it for backward cursor movement Consult the manual accompanying your Telnet or terminal emulation software before using the control keys amp 16710 bk MANVT100 FRM Page 4 Tuesday October 7 1997 11 38 AM amp
109. ranscend Chapter 4 network for the first time it is possible you may Quick Configuration Manager make mistakes We have tried to identify the likely Additional management using VT100 Chapter 5 errors you may make and have provided hints and Problem solving Chapter 6 tips to help you recover from these situations If you l l l are already familiar with network management you Dimensions standards and cabling Appendix A may be able to skip some of the information in this Network addressing IP IPX Appendix B guide and use the information given for reference The OfficeConnect product range obtaining Appendix C purposes technical support and 3Com repair services There is a Quick Reference Guide accompanying this guide It contains some useful information from this guide which you may need to refer to regularly P P amp 16710 bk ABOUTGULFRM Page 2 Tuesday October 7 1997 11 38 AM Conventions Convention The icon conventions that are used in this guide are The text conventions that are used in this guide are Description Enter vs Type Icon Type Description Information Note Information notes call attention to important features or instructions 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 Text represented as This typeface is used to repre
110. rd Windows based installation To install Quick Config Manager Start Windows If you already have an existing Transcend management application running ensure that it is closed down Insert the Quick Config Manager disk into your disk drive In the Program Manager window select the Run command from the File menu 4 In the Command Line box type drive SETUP where drive is the letter of your 3 5 disk drive and click on OK The installation program starts and checks your system configuration enter any information that s requested The installation program reports when it has completed the installation When the Quick Config Manager installation is complete it has its own program group called Transcend If other Transcend management applications are present the existing Transcend program group now includes Quick Config Manager Running Quick Config Manager A Whenever you want to start the Quick Config Manager application double click on the Quick Configuration Manager icon CAUTION Do not run Quick Config Manager in parallel with any other Transcend management application Before you can manage your hub you must make a connection to the hub see Chapter 3 amp 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
111. rectly Link between two OfficeConnect hubs not working Check your hub connections follow the information given in 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 Status LED to light yellow partition 16710 bk PROBSOLV FRM Page 3 Tuesday October 7 1997 11 38 AM Problems When Using Quick Config Manager 6 3 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 and the flow control set to NONE These are the default settings For information on the console port settings see Connecting a Modem to the Console Port on page 5 13 You forget your community string Log in to the hub using VT100 and use the Edit User screen to view your community string see Editing Users on page 5 18 Problems When Using VT100 The initial VT100 Main Banner screen does not display Check that your terminal or terminal emulator is correctly configured to operate as a VT100 terminal For console port access check you have performed the wake up procedure correctly by pressing Return Return Check the
112. resentation of the hub but not on a port From the Configure menu select General Info In the General Info dialog box choose the Resilience category The Resilience Links panel is displayed 11 38 AM Resilience 4 35 In the Resilience Links panel click on Create Quick Config Manager displays the Create Resilient Pair dialog box as shown in Figure 4 16 In the Create Resilient Pair dialog box choose the port for the main link followed by the port for the standby link Click on OK Reconnect the hub with the standby port on it to the network When you have created a resilient link pair it is added to the table and is color coded as follows Green Both Main link and Standby link are OK a Yellow One of the links is OK the other has failed a Red Both Main link and Standby link have failed gt 16710 bk MANAGING FRM Page 36 Tuesday October 7 1997 11 38 AM 4 36 CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Transcend Quick Configuration Manager Finance File View Bell Window Help Community Polling IP Setup General Info Reset Initialize General Info Finance Category Resilience Links Q MP Main Link Standby Unit __ Port State State Unit __ Port State HB 1 1 OK Operational 1 2 Standb Resilience WorkGroup A Create Resilient Pair Main Standby Unit Port Media Unit Port Media Twisted Pair 1 5 Tw
113. rmation as this chapter Before you can manage with Quick Config Manager you must make a connection to the hub s console port see Chapter 3 In the descriptions of the options given in this chapter the default values are underlined MANAGING YOUR HUB USING QUICK CONFIG MANAGER Installing Quick Config Manager Installation Requirements Quick Config Manager requires an IBM compatible PC with at least a 486 33 processor Your system must also include Microsoft Windows 3 1 or Windows for Workgroups 3 11 or Windows 95 MS DOS 5 0 or later not needed for Windows 95 Minimum of 4MB available hard disk space Minimum of 8MB RAM All RAM above the first megabyte must be configured as extended memory 3 5 disk drive VGA or SVGA color monitor Mouse Serial port capable of 9600 baud no Parity 8bit Data 1 StopBit amp 16710 bk MANAGING FRM Page 2 Tuesday October 7 1997 11 38 AM CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER Installation Procedure A Quick Config Manager can be installed on its own or on to a workstation that already has other Transcend management applications installed on it CAUTION Do not install Quick Config Manager in the same directory as any other Transcend management applications The default directory into which Quick Config Manager is installed is C QUICKMGR This can be changed during the installation if required The installation program is a standa
114. rrent Alert condition of the hub UTP Port Partition Enabled Disabled Allows you to specify whether the Alert LED lights if a UTP port becomes partitioned which happens if a network loop occurs 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 gt 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 Login Violation Enabled Disabled Allows you to specify whether the Alert LED lights if a login violation occurs which happens if a user attempts to log on to your hub using the VT100 screens with an invalid username password combination three consecutive times If this condition caused the Alert LED to light the LED goes off after you have acknowledged the alert by pressing the associated Ack button the LED stays lit if other conditions also caused it to light Port Security Violation Enabled Disabled Allows you to specify whether the Alert LED lights if a port security violation occurs which happens if an unauthorized device attempts to communicate through your hub 16710 bk MANAGING FRM Page 17 Tuesday October 7 1997 11 38 AM Setting Up the Alert LED 4 17 If this condition caused the Alert
115. s NIC RIPE and APNIC DOM These organizations assign a globally unique network number to each network that wants to connect to the Internet They only assign the network portion of the address assigning the device numbers is your responsibility If you do not plan to connect to the Internet but need to use IP addresses on your network you could assign network numbers on your own However NIC RIPE and APNIC DOM still assign and register unique network numbers to organizations not planning to join the Internet This means that if you change your mind later you can simply connect to the Internet without having to obtain new network numbers and reconfigure every device on your network with a new address For information on assigning your own IP addresses for a small contained network see Assigning IP Addresses to a Small Contained Network on page B 5 gt 16710 bk IPADDRES FRM Page 2 Tuesday October 7 1997 11 38 AM B 2 APPENDIX B IP AND IPX ADDRESSES Obtaining a Network Number There are three organizations responsible for allocating network numbers These details are correct at the time of printing but may change USA InterNIC Network Solutions Attention InterNIC Registration Services 505 Huntmar Park Drive Herndon VA 22070 Telephone 1 800 444 4345 Toll Free 1 619 455 4600 1 703 742 4777 You can also send e mail to these addresses hostmaster rs internic net host domain network changes a
116. s is divided is determined by the most significant bits in the 32 bit address field There are four classes of IP addresses Each address class begins with a unique bit pattern which is used by the Internet software residing on your devices to identify the address class gt APPENDIX B IP AND IPX ADDRESSES Class A The highest order bit is set to 0 giving a seven bit network number and a 24 bit device address You can have 125 networks with 16 777 214 devices per network and the addresses are in the range 001 xxx xxx xxx to 126 XXX XXX XXx where xxx represents the device portion Class B The two highest order bits are set to 10 giving a 14 bit network number and a 16 bit device address You can have 16382 networks with 65 534 devices per network and the addresses are in the range 128 001 xxx xxx to 191 254 xxx xxx where xxx represents the device portion Class C The three highest order bits are set to 110 giving a 21 bit network number and a 8 bit device address You can have 2 097 152 networks with 254 devices per network and the addresses are in the range 192 000 001 xxx to 223 255 254 xxx where xxx represents the device portion Class D This is used as a multicast address The four highest order bits are set to 1110 Multicasting is used to send an IP datagram to all members of a host group A host group is composed of a set of devices identified by a single IP address The addresses are in the range 224 000 0
117. sent displays that appear on your screen for example Enter the IP address This typeface is used to represent commands that you enter for example 191 0 0 172 When specific keys are referred to in the text they are called out by their labels such as the Return key or the Escape key or they may be shown as Return or Esc If two or more keys are to be pressed simultaneously the keys are linked with a plus sign for example Press Ctrl Alt Del Caution Cautions alert you to personal screen display A safety risk system damage or loss of data 4 Warning Warnings alert you to the risk of Text represented as A severe personal injury ER nds Keys Italics P P Italics are used to denote new terms or emphasis amp 16710 bk GETSTART FRM Page 1 Tuesday October 7 1997 11 38 AM 1 INTRODUCTION Welcome to the world of networking with 3Com A single OfficeConnect hub allows you to create a small network with up to eight workstations as In the modern business environment shown in Figure 1 1 communication and sharing information is crucial Computer networks have proved to be one of the fastest modes of communication but until now only OfficeConnect print server large businesses could afford the networking advantage The OfficeConnect product range from 3Com changed this bringing networks to the small office OfficeConnect Hub 8TPM The OfficeConnect Hub 8 TPM is id
118. settings on your terminal or emulator The parity must be set to none the stop bit 1 and the character size 8 The management facility s autoconfiguration works only with speeds from 1200 to 19200 baud Check that autoconfiguration is not disabled If you still cannot access the hub reset the hub using Quick Config Manager see Resetting the Hub on page 4 11 and retry the wake up procedure If this does not work initialize the hub Screens are incorrectly displayed Check that your terminal or terminal emulator is correctly configured to operate as a VT100 terminal amp 16710 bk PROBSOLV FRM Page 4 Tuesday October 7 1997 11 38 AM 6 4 CHAPTER 6 PROBLEM SOLVING Check the settings on your terminal or emulator The parity must be set to none the stop bit 1 and the Problems When Using an IP IPX based character size 8 The management facility s Management Application t figurati ks only with ds fi 1200 RR a al ea aa The IP IPX based management application to 19200 baud cannot access the device Check that The Telnet management station cannot access The hub s IP address subnet mask and default the device Check the hub s IP address subnet mask router are correctly configured see Giving the and default router are correctly configured see Hub an IP Address on page 4 7 Giving the Hub an IP Address on page 4 7 and the device has been reset Ensure that you enter the IP
119. surer la conformit avec les normes de s curit internationales C est essentiel que le socle de prise de courant du r seau soit localis proche du moyeu et soit accessible Vous pouvez seulement enlever l alimentation au moyeu en debranchant la pi ce de raccordement d alimentation de l unit ou du socle de prise de courant Ce moyeu fonctionne sous les conditiones SELV Securite du Voltage le plus Bas d apres IEC950 les conditions desquelles sont maintenues seulement si le mat riel a qui il est branch est aussi en exploitation sous SELV Il n y a pas de parties remplaceables par les utilisateurs ou entretenues par les utilisateurs a l int rieur du moyeu Si vous avez un probl me physique avec le moyeu qui ne peut pas tre r solu avec les actions de la r solution des probl mes dans ce guide contacter votre fournisseur D brancher la pi ce de raccordement d alimentation avant de remuer le moyeu AVERTISSEMENT Les ports RJ45 de paire tordue Ceux ci sont les socles de donn es RJ45 blindes Ils ne peuvent pas tre utilis s comme socles de t l phone Seulement brancher les connecteurs de donn es RJ45 aces socles amp 16710 bk IMSAFETY FRM Page 10 Tuesday October 7 1997 11 38 AM YOUR HUB ADDRESSES Using Quick Config Manager you can configure address information for your hub which affects the Parameter Default Your Setting way you can manage it It is important that you note Device 3Com
120. t 1 and parity none settings of your management station to work with the hub Press Return Return to start the communication The management station you are using needs to run suitable terminal emulation software Many VT100 terminal emulation packages are available gt 16710 bk ABOUTMAN FRM Page 5 Tuesday October 7 1997 11 38 AM Connecting to the Hub and Managing 3 5 Microsoft Windows has a terminal emulation program called HyperTerminal for Windows 95 or Terminal for other Windows versions Refer to the documentation that accompanies your particular terminal emulation package for details or consult your supplier if you need further advice Refer to Chapter 5 for information on performing additional management using the VT100 management interface Using a VT100 Terminal Connect one end of the null modem cable to the console port on the hub and the other to the serial RS232 port on your VT100 terminal You need to set the character size 8 stop bit 1 and parity none settings of your VT100 terminal to work with the hub Press Return Return to start the communication Refer to Chapter 5 for information on performing additional management using the VT100 management interface gt 16710 bk ABOUTMAN FRM Page 6 Tuesday October 7 1997 11 38 AM CHAPTER 3 ABOUT NETWORK MANAGEMENT Managing Over the Network gt This section describes how to set up equipment to al
121. t does cause harmful 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 p measures m Reorient or relocate the receiving antenna m Increase the separation between the equipment and the The user may find the following booklet prepared by receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help CSA STATEMENT This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 In order to meet FCC emissions limits this equipment must be used only with cables which comply with IEEE 802 3 amp 16710 bk EMCSTATE FRM Page 128 Tuesday October 7 1997 11 38 AM
122. tation to connect to a device as if it were a terminal such as VT100 It is provided as part of IP and is commonly available with SNMP network management A Modem Modulator Demodulator is a piece of equipment used for transmitting computer data over telephone lines amp 16710 bk CREYRNET FRM Page 1 Tuesday October 7 1997 11 38 AM 2 CREATING YOUR NETWORK ee All of the products in the OfficeConnect range are designed for ease of use This chapter describes how LEDs and Ports to use your OfficeConnect Hub 8 TPM to create your The hub features diagnostic LEDs and easy to use network and has information on ports m The hubs LEDs and ports The LEDs are shown in Figure 2 1 and are used for m What you need to create your network i yiera toie theth Showing you how the hub and its ports are D operating m Using the rubber feet and stacking clips m Showing you how much your network is being used m Wall mounting the hub m Alerting you to a potential problem with your m Connecting your workstations and other equipment network to the hub The ports are shown in Figure 2 2 and are used for m Connecting your hub to other OfficeConnect hubs R 3 m Connecting workstations and other equipment to your hub m Connecting your hub to another OfficeConnect hub m Connecting a management station to your hub Figure 2 1 and Figure 2 2 also appear on the Quick Reference Guide amp 16710 bk
123. ting a Modem to the Console Port 5 13 Connecting a Modem to the Console Port A The Console Port Setup screen is shown in Figure 5 7 The console port is already correctly configured by default Only alter these default settings if you are connecting a modem to the console port CAUTION Do not change any of these settings unless you fully understand what you are doing Incorrect settings will lock you out from the hub when you select OK and you will have to contact your supplier for information on recovering management communication gt 5 14 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT 100 3Com OfficeConnect Console Port Setup Serial Connection BESMET Char Size 8 Flow Control BNDNE E Parity NONE Baud Rate HAuto ConfigH Stop Bit 1 Modem Dial String Configured No Hub Login Over Modem Link Configured No Hub Logout Over Modem Link Configured No OK CANCEL 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 port To avoid terminating the session completely ensure that the settings are correct and that the connected equipment s settings match the new configuration If you change the console port parameters with Auto Config already set to Enabled or if you change Auto Config to Enabled you need to perform the wake up procedure before communication is re established see Main Banner on
124. toconfiguration function detects is 19200 baud You need to use a null modem cable for connection to the hub s console port This is available from your supplier The null modem cable must m Have a9 pin female D connector for connection to your hub and the appropriate connector for connection to your management station m Not exceed 15 meters 50 feet There are a variety of null modem cables that you can use For an example of one of these see Cabling on page A 2 IP IPX Network Manager VT100 Terminal Emulator Connection to the console port may be direct or through Telnet through modems giving the option of local or remote management For information on managing through modems see Remote Management Figure 3 1 Different Management Connections To The Hub Service on page 3 7 gt Using Quick Config Manager Connect 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 When you have made your connection and installed Quick Config Manager you are ready to manage your hub Refer to Chapter 4 for information on installing and using Quick Config Manager Using a VT100 Terminal Emulator Connect 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 You need to set the character size 8 stop bi
125. ts and are propagated around the network this is a normal part of Ethernet operation An excessive number of runts or collisions is an indication of congestion You may need to consider segmenting your network separating the busiest parts Readable Shows the number of frames received that are of valid length and have not suffered a collision or FCS error Look for unusual increases in traffic rate this can indicate a potential problem Broadcast Shows the number of frames received which are addressed to all devices The number of broadcast frames is normally a small percentage of the value seen for unicast single address frames A high level of broadcast frames can adversely affect network performance 16710 bk MANAGING FRM Page 20 Tuesday October 7 1997 11 38 AM Collisions Shows the number of frames for which a transmission collision was detected Collisions are a normal part of Ethernet operation and occur if two or more devices attempt to transmit at the same time A sudden sustained increase in the number of collisions can indicate a problem with a device particularly if it is not accompanied by a general increase in traffic On coaxial segments an increase in collisions can also indicate faulty cabling The values shown in the Activity Errors graph are per poll period not per second To change the poll period see Accessing the Hub on page 4 6 amp 16710 bk MANAGING FRM Page 21 Tuesday October 7 1997 11
126. y 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 3Com OfficeConnect Hain Henu REPEATER MANAGEMENT USER ACCESS LEVELS STATUS MANAGEMENT SETUP SOFTWARE UPGRADE INITIALIZE RESET REMOTE POLL LOGOFF Figure 5 4 Main Menu If you are using the management facility for the first time we suggest that you m Set up logons for any other users and assign each user an appropriate security level See Configuring Local Security on page 5 15 m Assign new passwords for the default users See Editing Users on page 5 18 Getting Started 5 9 To carry out a particular management task scroll to the relevant option and press Return This chapter describes the screens which perform management tasks that Quick Config Manager does not Logoff If you have finished using the facility select the Logoff option from the bottom of the Main Menu If you accessed the facility using a Telnet session or modem connection the connection is closed automatically Auto Logout There is a built in security timeout on the VT100 interface If you do not press any keys for three minutes the management facility warns you that the inactivity timer is about to expire If you do not press a key within 10 seconds the timer expires and the screen is locked any displayed statistics continue to be updated however When you next press any ke
127. y the display changes to the Auto Logout screen which requests that you enter your password again If entered correctly you are returned to the screen that was previously active If entered incorrectly you are returned to the Logon screen gt 5 10 CHAPTER 5 ADDITIONAL MANAGEMENT USING VT 100 Configuring and Viewing Setup Information The Management Setup screen as shown in Figure 5 5 is used to configure IP IPX and SLIP parameters for the hub This screen also provides access to other screens for you to set up traps and console port parameters gt If you have no previous knowledge of IP refer to Appendix B for more information 3Com OfficeConnect Hanagerent Setup HAG Address 68 AALE B89DFG Device IP Address LEX 1 SLIP Address 192 158 101 3 Device SubNet Hask 255 255 255 0 SLIP SubNet Hask 255 255 255 0 Default Router 191 1 1 72 1 BOOTP Select HEnabled E IPX Network Node Status Data Link Protocol 90000000 G8GG4e089dFc MEnabled M Ethernet_802 3 00000000 G80G4e089dFc MEnabled M Ethernet_882 2 88668686 68864eB889dfc MEnabled E Ethernet_II 90000000 68004e089dfc MEnabled E Ethernet_SNAP OK SETUP TRAPS SERIAL PORT CANCEL 1 1 Figure 5 5 Management Setup Screen 16710 bk MANVTI100 FRM Page 10 Tuesday October 7 1997 11 38 AM MAC Address The MAC address of the hub This cannot be changed Device IP Address If using IP you need to enter a unique IP address for
128. y link eee asegenetwor management application by stays active and the main link acts like a standby link sending SNMP traps messages to it You caniswapithe links around using management If you have a large network with many devices this feature allows you to distribute device monitoring p among those managed devices on your network easing the load on the IP IPX based network management application This facility also allows you to monitor devices that are otherwise not directly manageable such as workstations Any device with an IP or IPX address can be monitored To add a device for the hub to monitor 1 Do one of the following Double click on the graphical representation of the hub but not on a port From the Configure menu select General Info gt 16710 bk MANAGING FRM Page 38 Tuesday October 7 1997 11 38 AM CHAPTER 4 MANAGING YOUR HUB USING QUICK CONFIG MANAGER In the General Info dialog box choose the WorkGroup category In the WorkGroup Monitor panel click on Add Quick Config Manager displays the Add Remote Poll dialog box as shown in Figure 4 17 In the Add Edit Remote Poll dialog box enter the IP or IPX address of the device that you want the hub to poll Choose the rate at which the device is to be polled If the device is critical to the performance of your network select a frequent rate If the device is not important or on a remote network you can select a less frequent r

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