Manuale d’uso / di manutenzione del prodotto 155 PCI del fabbricante 3Com
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® ATML INK ™ 1 55 PCI N ETWORK I NTERFACE C ARDS U SER G UIDE A member of the 3Com family of ATMLink network interface cards Part No. 09-1038-000 Published F ebruary 1997.
ii 3Com Corporation ■ 5400 Bayfr ont Plaza ■ Santa Clara, California ■ 95052-8145 © 3Com Corporation, 1997. All rights reser ved. No par t of this documentation may be reproduced in an y form or b y any means or used to make any derivative w ork (such as translation, transformation, or adaptation) without permission from 3Com Corporation.
® L IFETIME W ARRANTY 3Com ’ s EtherLink®, T o kenLink®, T okenLink V elocity™, F ast EtherLink, and FDDILink ™ network inter face cards have a Lif etime W arranty . T o ensure the ver y best 3Com service and suppor t, tak e the time to complete the product registration card .
Customers in the countries shown belo w should send the completed registration card to the appr opriate address. Customers in other non-U.S. locations should send the registration card to the U.S. address on the front of the card . ■ Asia 3Com Asia Ltd.
iii C ONTENTS A BOUT T HIS G UIDE Introduction 1 How to Use This Guide 1 Con ventions 2 1 I NTRODUCTION Product Featur es 1-1 Emulated LAN (ELAN) O verview 1-3 Software Descriptions 1-4 Network Driver.
iv Driver Installation Summary for Experienced Users 3-5 Before Y ou Begin 3-5 P ar t One: NIC Detection, Resilient Ser ver Links, and ELAN Allocation 3-6 P ar t T wo: NIC and ELAN Configuration 3-7 .
v 5 ATML INK U TILITY Installing and Running the A TMLink Utility for Windows NT 5-1 A TMLink Utility Field Descriptions 5-2 ELAN Information 5-2 NIC Connection Statistics 5-4 NIC Information 5-5 Rese.
vi A S PECIFICATIONS Hardware A-1 Network Connections A-2 Standards Compliance A-2 Environmen t A-2 RJ-45 Connector Pinouts A-3 B T ECHNICAL S UPPORT Online T echnical Ser vices B-1 3Com Bulletin Boar.
vii F IGURES 1-1 3C975-F and 3C975-UTP A TMLink NICs 1-2 2-1 Removing the Expansion Slot Co ver 2-2 2-2 3C975-F A TMLink NIC Installed in the Chassis 2-3 2-3 SC Duplex and RJ-45 Connectors 2-4 3-1 Net.
viii 4-7 ELAN Configuration Screen 4-11 4-8 Configuring the TCP/IP Network Inter face 4-13 4-9 Selecting the Card Number 4-14 4-10 Prompt t o Add Additional LEC 4-18 4-11 Additional Driver A ctions Screen (Adding an Additional ELAN) 4-18 4-12 Select a Driver Screen 4-19 4-13 Sample of AUT OEXEC.
ix T ABLES 1 Notice Icons 2 2 T ext Conventions 2 3-1 3C975 A TMLink NIC Installation Configuration P arameters 3-13 4-1 3C975 A TMLink NIC NetWar e Install Utility Configuration P arameters 4-11 4-.
A BOUT T HIS G UIDE Introduction This user guide describes the installation and configuration of the 3Com ® 3C975-F and 3C975-UTP A TMLink ™ 155 PCI network Interface cards (NICs). The intended audience is the network administrat or , network operator , or netw ork hardware installer .
2 A BOUT T HIS G UIDE C onv entions T able 1 and T able 2 list text and icon conventions that are used throughout this guide: T able 1 Notice Icons Icon Type Description Information Note Information notes call attention to important features or instructions.
Conventions 3 Text represented as screen display This typeface is used to represent displays that appear on your terminal screen, for example: NetLogin: Text represented as commands This typeface is used to represent commands that you enter, for example: SETDefault !0 -IP NETaddr = 0.
1 I NTRODUCTION This chapter describes the hardware and software f eatures of the 3Com ® 3C975 A TMLink ™ 155 PCI network inter face card (NIC), hereafter called the 3C975 A TMLink NIC. Pr oduc t F eatur es The 3Com A TMLink 3C975 NIC is available in two models: the 3C975-F and the 3C975-UTP .
1-2 C HAPTER 1: I NTRODUCTION ■ T raffic shaping (user-defined maximum peak rate per ELAN) ■ Interim Local Management Interface (ILMI) 3.0 ser vice ■ User-selectable vir tual path identifier/.
Emulated LAN (ELAN) Overview 1-3 Emulated LAN (ELAN) Ov er view The 3Com A TMLink network driver conforms to the A TM F orum LAN Emulation over A TM Specification 1.
1-4 C HAPTER 1: I NTRODUCTION F or more detailed information on LAN emulation and emulated LANs, access the Networking Solutions Center on the 3Com W orld Wide W eb site at www .3com.com. White papers on A TM are found in the A dvanced T echnology Solutions section.
Software Descriptions 1-5 The NetW are 4.x and 3.12 drivers and Windows NT network drivers support up to four physical NICs per system. Each physical NIC can be configured to support up to 16 LECs. Each LEC operates as a vir tual NIC and has a unique MAC address.
1-6 C HAPTER 1: I NTRODUCTION A TMLink Utility Description An A TMLink utility for Microsoft Windows NT and f or Novell NetW are is shipped on the A TMDisk diskettes. Use the A TMLink utility to display configuration and operating status of all installed A TMLink NICs and ELANs, as well as to reset a NIC.
2 H ARDWARE I NSTALLATION This chapter describes the procedur e for installing the 3C975 A TMLink NIC in your PCI-bus computer system. Follow all applicable instructions included with your system documentation on PCI-bus installations.
2-2 C HAPTER 2: H ARDWARE I NSTALLATION 3 T urn off the pow er to the computer sy stem and any attached devices. 4 Unplug the power cables fr om the power supply .
Installing the 3C975 ATMLink NIC 2-3 8 Insert the 3C975 A TMLink NIC in the selected slot, as shown in F igure 2-2. Figure 2-2 3C975-F A TMLink NIC Installed in the Chassis 9 Writ e down the MAC address of the NIC and not e which slot you used .
2-4 C HAPTER 2: H ARDWARE I NSTALLATION 13 Connect the power cables and turn on the po wer to the computer . 14 Connect the 3C975 A TMLink NIC to the network. The 3C975-F NIC uses 62.5/125 µ m multimode fiber-optic cable with SC duplex connectors. The 3C975-UTP NIC uses Category 5 unshielded twisted-pair cable with an RJ-45 connector .
3 W INDOWS NT D RIVER I NSTALLATION The 3C975 A TMLink NIC driver for file ser vers running Windows NT provides standards-based A TM LAN emulation connectivit y to an A TM network. This permits legacy LAN networking technologies and protocols (such as Ethernet and token ring) to run over an A TM network.
3-2 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Driver Installa tion Requirements Please confirm that the following r equirements are met before you install and configure the 3C om A TMLink NIC Windows NT network driver . Hardware Requiremen ts ■ Computer with Intel®-based CPU and bus mast er PCI bus, running Microsoft Windows NT v ersion 3.
Driver Installation Requirements 3-3 Memor y Requirement Sc enario 1 There are two NICs installed . One has a maximum frame size of 1514 bytes and four ELANs , and the other is a standby NIC. The memory requirement is 24 megabytes of RAM. F rame_Size = 1 (1514 bytes maximum frame size) No.
3-4 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION NIC Information Requirements ■ Names of the ELANs to be configured on each A TMLink NIC ■ IP address and subnet mask of each ELAN using T CP/IP i.
Driver Installation Summary for Experienced Users 3-5 ■ In a two-NIC scenario , when NIC 1 is active and NIC 2 is standby , and if the link on the NIC 1 por t fails, NIC 2 assumes the configuration profile of NIC 1 and becomes the active NIC. NIC 1 now becomes a standby NIC for NIC 2.
3-6 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION ■ Obtain the names of the ELANs you wish to join from y our A TM system administrator . ■ Obtain an IP address for each ELAN y ou intend to install, if the ELANs are to be used on an IP network without a DHCP server .
Driver Installation Summary for Experienced Users 3-7 Part T wo: NIC and ELAN Configura tion After all the 3Com A TMLink NICs have been detected, the driver files copied , and the number of ELANs specified, the 3Com A TMLink Installation window appears.
3-8 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Y ou have completed the A TMLink Windows NT network driver installation. The remaining sections of this chapter provide a more detailed approach to installing the A TMLink NIC network driver with Windows NT .
Installing the Network Driver 3-9 Figure 3-1 Network Settings Window Figure 3-2 Add Network Adapter Figure 3-3 Inser t Disk Dialog Box.
3-10 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION 8 Insert the A TMDisk diskette for Windows NT in a floppy disk drive . If necessar y , change the drive designation to the appropriate floppy drive. 9 Click OK . The Select OEM Option window appears, as shown in F igure 3-4.
Installing the Network Driver 3-11 11 Click Ye s if you want the 3Com driv er installed on the indicated NIC. O ther wise, click No . If you click Ye s , the NIC Mode dialog box appears, as shown in F igure 3-6. If you click No , the NIC Installation dialog box reappears for the next discover ed A TMLink NIC.
3-12 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Each ELAN on a physical NIC is assigned a unique MAC address that is an increment of the base MA C address of the physical NIC.
Installing the Network Driver 3-13 T able 3-1 describes the fields and buttons in the A TMLink Installation and ELAN Configuration windows. Default values are shown in bold .
3-14 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION T o configure NICs and ELANs, follow these steps: 1 Select the NIC that you want to configure from the A TMLink NIC list box in the A TMLink Installation window . Y ou can configure the NICs in any order that you wish.
Installing the Network Driver 3-15 3 Change the global NIC parameters if necessary . Global parameters values ar e the same for every NIC in the computer system. a Select a VPI/VCI range. Select the VPI/VCI range that matches the VPI/VCI range set on the A TM switch by the A TM network administrator .
3-16 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION 5 Select an ELAN name and then click Configure ELAN . The ELAN Configuration window appears , as shown in F igure 3-9. Figure 3-9 ELAN Configuration Window a Enter the ELAN name. The ELAN names should match the ELAN names configured on the A TM switch, LECS, or LES.
Installing the Network Driver 3-17 6 When all the clients are c onfigured , click OK . The 3Com A TMLink Installation window shown in Figur e 3-8 reappears. All entries and edits to the 3Com A TMLink Installation and ELAN Configuration windows are sav ed only when you select the Save & Exit button in the 3Com A TMLink Installation window .
3-18 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION 9 Edit the T CP/IP parameters. All ELANs and standby NICs using T CP/IP require a unique IP address and subnet mask. Enter dummy values for the standby NICs. Contact your network administr ator for appropriate IP addresses and subnet masks.
Verifying Driver Installation and Configuration 3-19 10 Click OK when the T CP/IP configuration is complet e. The restart prompt shown in Figur e 3-11 appears. Figure 3-11 Restart Prompt for Adapter Driv er 11 Make sure that all cables are c onnected to the appropriate switch ports.
3-20 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Enabling and Disabling ELANs T o disable an ELAN, click the ELAN name in the 3C om A TMLink Installation window (F igure 3-15), and then click Disable ELAN . This action disables the protocol bindings of the ELAN.
Adding ELANs 3-21 Adding ELANs Additional ELANs can be added to a NIC after the initial installation. P er form the following procedur e to add additional ELANs: 1 If multiple A TMLink NICs are installed , identify the PCI slot and bus number of the NICs on which you want t o install additional ELANs.
3-22 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION The installation program finds all installed 3C om A TMLink NICs. A dialog box appears for the first NIC disco vered , as shown in F igure 3-13. Figure 3-13 NIC Installation Dialog Box 4 If you want to add ELANs to the NIC identified in the dialog box, click Ye s ; otherwise, click No .
Adding ELANs 3-23 The preexisting ELANs retain all of their configuration information. The new ELANs appear in the ELAN portion of the 3Com A TMLink Installation window , as shown in Figure 3-15. Figure 3-15 3Com A TMLink Installation Window Showing Additional ELANs 6 Configur e the new ELANs, and then click Save & Exit .
3-24 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Adding SNMP Support The SNMP agent shipped with the A TMLink NIC offers limited suppor t for the A TM Forum LAN Emulation Client Management V ersion 1.0 Specification. The agent is shipped on the AT M D i s k disk ette as the LECMIB.
Adding SNMP Support 3-25 Figure 3-16 Selecting the SNMP LEC MIB Agent 3 Click OK . The SNMP agent files are copied to the system har d disk. 4 Click OK in the Network Settings window .
4 N ET W ARE S ERVER D RIVER I NSTALLATION The 3C975 A TMLink NIC driver for file ser vers running Novell NetW are 3.12 and 4.x provides standar ds-based A TM LAN emulation connectivit y to an A TM network. This permits legacy LAN network ing technologies and protocols (such as Ethernet and token ring) to run over an A TM network.
4-2 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION Copying the driver from the A TMDisk disk ette to the hard drive of the server is a standard NetW are driver installation operation, per formed manually or by using the standard NetW are install utility .
Driver Installation Requirements 4-3 Driver Installa tion Requirements Please confirm that the following installation r equirements are met befor e installing and configuring the network driver . Hardware Requiremen ts ■ F ile ser ver with a PCI bus running Novell NetW are v ersion 3.
4-4 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION Resilient Server Links Overview Resilient ser ver links add redundant function to your server to protect against network disruption and data loss. T o use resilient links, you must install two or more 3C om A TMLink NICs in your system.
Resilient Server Links Overview 4-5 ■ A NIC cannot be configured as a standby NIC f or another standby NIC. ■ A resilient server link is established only if the active NIC is loaded before the standb y NIC and is operational after NetW are is booted .
4-6 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION A NIC configured as a standby NIC does not requir e other keyword parameters or a bind command , because it assumes the configuration profile of the active NIC. For more inf ormation on editing the AUT OEXEC.
Loading the Server Driver 4-7 If the number of minimum packet receive buffers is already present in the ST ARTUP .NCF file, add that number to the number calculated for the A TMLink NICs. Driver Installation P rocedur e P er form the following steps t o install the 3Com 3C975 A TMLink NIC driver on a NetW are 4.
4-8 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION 2 Select Driver options . The Driver Options screen appears , as shown in Figur e 4-2. 3 Select Configure network drivers. The Additional Driv er Actions screen appears, as shown in F igure 4-3.
Loading the Server Driver 4-9 4 Choose Selec t a driver . The Select a Driver screen appears, as shown in Figure 4-4. If this is the first installation of the 3C975 NIC driver , it will not appear in the above list. 5 Press the [ Insert] key to install a driver fr om the floppy disk drive .
4-10 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION 6 Insert the A TMDisk diskette for NetW are in a floppy drive. If a path other than drive A: is required , press [F3] to specify a different driv e. 7 Press [Enter]. The Select a Driver to Install screen appears, as shown in F igure 4-6.
Configuring LECs and Resilient Server Links 4-11 C onfiguring LECs and Resilient Ser v er Links After the driver files are copied to the server , the ELAN C onfiguration screen appears, as shown in Figure 4-7.
4-12 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION Maximum Frame Size 1514 4542 9232 All ELANs with the same card number must have the same MFS value, also called maximum transfer unit (MTU). Use 1514 for Ethernet, 4542 for 4 Mbps token ring, and 9232 for 16 Mbps token ring.
Configuring LECs and Resilient Server Links 4-13 T o configure LECs using the NetWar e install program, per form the f ollowing procedure: 1 Select S elect/Modify driver par ameters and protocols at the bottom of the ELAN Configur ation screen, as shown in Figur e 4-7.
4-14 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION 4 Press [F3] t o set the frame type. Use the arrow keys to select a new frame t ype, if necessar y . The default frame type is 802.2. If you are configuring a token ring LEC, change the frame t ype to T oken R ing or T ok en Ring SNAP as appropriate.
Configuring LECs and Resilient Server Links 4-15 6 Enter the ELAN name. In most cases, the ELAN name should match a preconfigured name on the A TM switch, such as the 3Com CELLplex ™ 7000 switch. O ther manufacturers may have differ ent requirements.
4-16 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION 10 Select the LEC configuration mode. ■ Select Automatic to contact the default LAN Emulation Configuration Server (LECS) through the Interim Local Management Inter face (ILMI).
Configuring LECs and Resilient Server Links 4-17 14 Enter the LES user part if you selected Manual for the LEC Configur ation Mode. This is the 7-byte hexadecimal (14-character) user par t of the target LES address. Enter the address without delimiters.
4-18 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION Figure 4-10 Prompt to A dd Additional LEC 21 Do one of the following: ■ Select No to complete and exit the configuration procedur e. ■ Select Ye s to create and configure an additional LEC.
Configuring LECs and Resilient Server Links 4-19 The screen shown in F igure 4-11 is the same scr een shown in F igure 4-3, except that the newly installed LEC instanc e is displayed . Each LEC instance requires configur ation of the same 3C975.LAN driver .
4-20 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION NetW are Card Numbers and Multiple Ph ysical NICs T o connec t a cable from the A TMLink NIC to the appropriate por t on the A TM switch, you must k now which physical NIC corresponds to a given NetW are car d number .
Verifying Driver Installation and Configuration 4-21 with card number 2, and the four th A TMLink NIC found is recognized as a standby NIC. The first A TMLink NIC to flash during ser ver initialization is card number 1, the nex t to flash is card number 3, and the last to flash is card number 2.
4-22 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION Check ability to connect over A TM link T o verify that the ser ver is communicating over the A TM link, per form the f ollowing procedure: 1 Set up a NetW are client on an ELAN supported by the ser ver to be tested .
Editing the AUTOEXEC.NCF File 4-23 Each LEC requires a separ ate load and bind command . ;LOAD NLMs AVAILABLE FROM THE 3COM ATMDISK ; load nbi.nlm load msm.nlm load ethertsm.nlm load tokentsm.nlm ; ;**** NETWARE ELAN CONFIGURATION EXAMPLE **** ; load 3c975.
4-24 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION Do not use the bind command for a standby NIC, or else NetW are will make it an active NIC. Always load an active NIC before its standby NIC. T able 4-2 describes the NetW are keywords to use when editing the AU TOEXEC.
Editing the AUTOEXEC.NCF File 4-25 lec_config_mode (LEC configuration mode) 1 , 2 1=Automatic (uses ILMI or user-supplied LECS address) 2=Manual (must supply address for LES or LECS when using this option) lecs_np (LECS network prefix) Default is 13-byte network portion of ATM Forum Well-known Address.
4-26 C HAPTER 4: N ET W ARE S ERVER D RIVER I NSTALLATION Removing an LEC fr om NetW are T o remove an LEC from the A UT OEXEC.NCF file, follow these steps: 1 F rom the system prompt , ent er the command: load install The Installation Options screen shown in F igure 4-1 appears.
5 ATML INK U TILITY This chapter describes the Windows NT and Novell NetW ar e versions of the 3Com A TMLink utility . The A TMLink utilit y reads and displays read-only ELAN connection statistics and NIC configuration parameters. Active connection statistics are updated every 5 seconds.
5-2 C HAPTER 5: ATML INK U TILITY Figure 5-1 A TMLink Utilit y Windows A TMLink Utility F ield Descriptions The A TMLink utilit y displays information f or correctly installed A TMLink NICs and LAN emulation clients (LECs).
ATMLink Utility Field Descriptions 5-3 Figure 5-2 ELAN Information Window T able 5-1 explains the Windows NT ELAN inf ormation fields. T able 5-1 Windows NT ELAN Information F ields Field Description.
5-4 C HAPTER 5: ATML INK U TILITY NIC Connection Statistics T o view NIC connec tion statistics, click the name of the NIC on the director y tree in the left por tion of the window , and then click the Connections Stats tab in the right portion of the window , as shown in Figure 5-3.
ATMLink Utility Field Descriptions 5-5 NIC Information T o view NIC information, click the name of a NIC on the director y tree in the left por tion of the window , and then click the NIC Information tab in the right portion of the window , as shown in Figure 5-4.
5-6 C HAPTER 5: ATML INK U TILITY The bus number , slot number , and IRQ values are set by the system BIOS. T he maximum number of VCCs is preset b y the network driver . All other values are set by using the A TMLink install utility . See Chapter 3 f or more information on configuring and reconfiguring NICs and ELANs.
Installing and Running the ATMLink Utility for Novell NetWare 5-7 Use the Reset option if the NIC appears to be unresponsiv e. T o access the Reset option, select Reset from the Control menu , as shown in F igure 5-5 .
5-8 C HAPTER 5: ATML INK U TILITY The A TMLink Utilit y Selec t a NIC screen appears , as shown in F igure 5-6. Figure 5-6 NetW are A TM Utilit y Select a NIC Screen 3 Use the arro w keys to select an installed A TMLink NIC, and then press [Enter]. The NIC number shown in F igure 5-6 is the NetW are c ard number .
ATMLink Utility Menu Options 5-9 A T MLink Utility Menu Options Use the arrow keys to select from the follo wing options: ■ NIC Information ■ VCC Statistics ■ ELAN Statistics ■ Reset NIC ■ Quit Pr ess [Enter] to display the selected information.
5-10 C HAPTER 5: ATML INK U TILITY T able 5-4 lists the range of values that can be displayed on the NIC Information screen. VC C Statistics The VC C Statistics screen, shown in F igure 5-9, displays a table of the current open connections established between the selected NIC and the A TM network.
ATMLink Utility Menu Options 5-11 Figure 5-9 VCC Statistics Screen T able 5-5 describes the NetWar e VCC statistics fields. T able 5-5 NetW are VCC Statistics Screen Field Description VCI Numeric vir.
5-12 C HAPTER 5: ATML INK U TILITY ELAN Statistics When you select the ELAN Statistics option from the main menu, the A TMLink utilit y displays two screens , the Currently Configured LECs scr een, as shown in Figure 5-10, and the LEC Statistics screen, as shown in F igure 5-11.
ATMLink Utility Menu Options 5-13 The LEC Statistics screen displays configuration inf ormation and the operational status of the selected ELAN. Check the State field of the LEC Statistics screen to verify that an LEC has successfully joined an ELAN.
6 D IAGNOSTICS AND T ROUBLESHOOTING This chapter describes how t o use the A TMLink diagnostic utility program shipped on the A TMDisk disk ettes. Ov ervie w The A TMLink diagnostic utilit y and its associated help files are in the root directory of the AT M D i s k diskettes.
6-2 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING When to U se the Diagnostic Utility 3Com suggests that you run the diagnostic utility immediately after installing the 3C975 A TMLink NIC, and before installing the network drivers.
How to Use the Diagnostic Utility 6-3 How to U se the Diagnostic Utility The diagnostic utility is a DOS program. It can be run direc tly from the A TMDisk diskette or copied , with its help file, to the system hard drive and run from a dir ector y of your choice.
6-4 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING The diagnostic utility main screen appears, as shown in F igure 6-1. Figure 6-1 Diagnostic Utility Main Screen Navigating Within the Diagnostic Utility Use a mouse (if a mouse driver is loaded) or the keyboard to access the diagnostic utility ’ s character-based interface.
How to Use the Diagnostic Utility 6-5 Running the Internal T ests The internal tests check the int egrity of the on-board ASIC circuitry . The types of tests and number of test r epetitions are set to the default values (that is , Internal tests enabled, External test disabled , and 10 repetitions per test).
6-6 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING 4 V erify that all the internal t ests are enabled. If they are not, click the Enable All button to set all internal tests to Enabled . 5 In the T est Selec t box, selec t Ext Loopback T est and verify that the External Loopback T est is disabled.
How to Use the Diagnostic Utility 6-7 Running the External Loopback T est Run the External Loopback T est to check the integrity of the on-board transceiver and cable connectors.
6-8 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING Figure 6-4 External Loopback T est Screen 6 V erify that the External Loopback T est is enabled . If the External Loopback T est is disabled, click Enable All. 7 Click OK . The main screen shown in F igure 6-1 reappears.
Viewing Test Results 6-9 9 Click Star t to run the External Loopback T e st. The test runs ten times by default. If you want to change the number of test repetitions , click T est S etup . 10 If the test fails, go to the section “ What to Do If a T est F ails” later in this chapter .
6-10 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING NIC Statistics Internal and external test results ar e also repor ted in the form of NIC statistics.
Changing the Test Setup 6-11 Figure 6-8 T est Information Scr een Changing the T est Setup In rare cases, such as intermittent faults, you may wish to change the default values of the diagnostic utility . Other wise, no changes to defaults are necessary in order to detect the most common error conditions.
6-12 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING Changing the Number of Repetitions All tests are set by default to run 10 times and t o halt when an error occurs. T o change the number of r epetitions, enter a new value in the Times field of the Repetitions box of the T est Setup screen (F igure 6-2).
File Options 6-13 3Com 3C975 NIC Diagnostic Program Test Results Report Diagnostic tests started at: 10/4/96, 16:29:34 System Information: ------------------- Processor Type 80X86 Processor Mode 16-bi.
6-14 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING SRAM Data Test : Passed Total Repetitions Completed : 10 Repetitions Passed : 10 Repetitions Failed : 0 Internal Loopback Test : Passed Total Repetit.
What to Do If a Test Fails 6-15 2 Inspect all cables and connections. 3 Make sure that your computer was booted with DOS version 6.x, and that no device drivers or memory managers are loaded . 4 Make sure that the PCI slot with the NIC in it is activated .
6-16 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING C onstructing Loopback Plugs T o run the ex ternal loopback test, you must first inser t a loopback plug into the cable connectors of the 3C975 A TMLink NIC. T he following instructions describe how to construct a loopback plug for the 3C975-F and the 3C975-UTP A TMLink NICs.
Constructing Loopback Plugs 6-17 Figure 6-10 Unclipping the Connectors of a Double-Strand Fiber-Optic C able Figure 6-11 Clipping T ogether the Ends of the Same F iber Strand SC connector port LED .
6-18 C HAPTER 6: D IAGNOSTICS AND T ROUBLESHOOTING RJ-45 Loopback Plug T o construc t an external loopback plug for use in testing the unshielded twisted-pair version of the A TMLink PCI NIC (3C975-UTP), use an RJ-45 unshielded male connector .
Link LED 6-19 Link LED The state of the Link LED indicates the A TMLink NIC operating status. T able 6-3 explains the possible LED states. The LED of a standby NIC does not light unless the NIC changes to active status.
A S PECIFICATIONS Hard ware Memor y 16 Kb serial EEPROM 128 KB SRAM 315 Cells on chip buffer Bus inter face PCI L ocal Bus Specification, Revision 2.0 PCI Compliance Checklist 32-bit zero wait state .
A-2 A PPENDIX A: S PECIFICATIONS Network C onnections Standards C omplianc e En vironment SC duplex Multimode fiber (62.5/125 µ m) Maximum cable length: 2 k m RJ-45 Category 5 UTP cable 100 m Maximum cable length: 100 m A TM layer ANSI T1S1/92-002R3, ITU 1.
RJ-45 Connector Pinouts A-3 RJ-45 C onnector Pinouts T able A-1 lists the pin assignments for the RJ-45 connector . T able A-1 RJ-45 Connector Pinouts Pin Number ATMLink NIC ATM Switch 1 Transmit + Re.
B T ECHNICAL S UPPORT 3Com pro vides easy access to technical suppor t information through the variety of services described in this appendix. Online T echnical Services 3Com off ers worldwide product.
B-2 A PPENDIX B: T ECHNICAL S UPPORT Call the telephone number nearest you: Acc ess by Digital Modem ISDN users can dial-in to 3ComBBS using a digital modem f or fast access up to 56 Kbps.
Online Technical Services B-3 3ComF orum on C ompuServe 3ComF orum is a CompuServe-based ser vice containing patches, software, drivers, and technical articles about all 3Com products , as well as a messaging section for peer suppor t. T o use 3C omF orum, you need a CompuSer ve account.
B-4 A PPENDIX B: T ECHNICAL S UPPORT Suppor t from Y our Network Supplier If additional assistance is required , contact your network supplier . Many suppliers are authorized 3Com service par tners wh.
Returning Products for Repair B-5 Returning Pr oduc ts for Repair A product sent directly to 3Com for r epair must first be assigned a Return Materials Authorization (RMA) number . Pr oducts sent to 3Com without RMA numbers will be returned to the sender unopened , at the sender ’ s expense .
G LOSSARY AAL A TM Adaptation Layer . T ranslates packets of data to 53-byt e cells for transmission on the network. The layers are defined to provide diff erent classes of ser vice for A TM connec t.
2 G LOSSARY Cell The basic data unit used to transmit information thr ough an A TM network. The cell is 53 bytes in length and supports high-speed packet switching techniques. End station A machine that is connected to a network and is intended to run user application programs.
G LOSSARY 3 LEC LAN Emulation Client. T ypically located in an A TM end station, its task is to maintain address resolution tables and to f or ward data traffic. Each LEC is associated with a unique A TM address. LECS LAN Emulation Configuration Ser ver .
4 G LOSSARY MIB Management Information Base. A definition of management items for some network component that can be accessed by network management software. A MIB includes the names of objects it contains and the t ype of information retained . Node A device connected to the network media, usually with an adapter card .
G LOSSARY 5 SONET Synchronous Optical Network. A growing body of standards that defines all aspects of transmitting and managing digital traffic over optical (fiber) facilities. STS-3c Synchronous T ranspor t Signal, Level 3 Concat enated. SVC Switched Vir tual Circuit.
6 G LOSSARY VPI Vir tual Path Identifier . A 1-byte field in an A TM cell header that, when combined with the VCI ( Vir tual Circuit Identifier), makes up an A TM address.
I NDEX Numerics 3C975 NIC hardware and software features 1-1 3C975.RPT file 6-12 3C975.TST file 6-12 3Com Bulletin Board Service (3ComBBS) B-1 3Com sales offices B-4 3Com URL B-2 3ComF acts B-3 3Co.
2 I NDEX driver installation (cont’ d) Windows NT overview 3-1 requirements 3-8 step-by-step procedure 3-8 summar y 3-5 verifying 3-19 driver remov al NetW are 4-26 Windows NT 3-20 E ELAN Name NetW .
I NDEX 3 loopback plugs, constructing fiber-optic 6-16 RJ-45 6-18 Loopback T est 6-7 M Maximum Frame Siz e NetW are 4-12 , 4-24 Windows NT 3-13 maximum peak cell rate value 1-5 Maximum VCCs Allowed ,.
4 I NDEX RJ-45 connector 2-4 loopback plug 6-18 pinouts A-3 S SC duplex connector 2-4 Signaling V ersion NetW are 4-12 , 4-25 Windows NT 3-13 SNMP , Windows NT 3-24 software requirements NetW are 4-3 Windows NT 3-3 standards compliance A-2 standby NIC 3-4 , 4-4 ST ARTUP .
LIMITED W ARRANTY HARDW ARE: 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 .
CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND SATISFACTORY QUALITY. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS.
FCC CLASS B C ERTIFICATION STATEMENT 3Com Corporation Model No: 3C975-F FCC ID: DF63C975-F Made in U.S.A. This device complies with Part 15 of the FCC Rules.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
TR ADE SECRETS; TITLE: You acknowledge and agree that the structure, sequence and organization of the Software are the valuable trade secrets of 3Com and its suppliers.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il 3Com 155 PCI è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del 3Com 155 PCI - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com 155 PCI imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com 155 PCI ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com 155 PCI, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del 3Com 155 PCI.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il 3Com 155 PCI. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com 155 PCI insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
