3Com 3C971-F manuale d’uso

® 3C971-F ATML INK ™ ∏ PCI 155 F IBER N ETWORK A DAPTER U SER G UIDE P ar t No . 09-0897-000 April 1996[...]

® L IFETIME W ARRANTY 3Com’ s A TMLink ™ , EtherLink ® , T ok enLink ® , F ast EtherLink, FDDILink ™ , and 3Com Impact ™ ISDN ISA adapters hav e a Lifetime Warr anty . T o ensure the v ery best 3Com ser vice and suppor t, take the time to complete the product registration card. Any def ective 3Com adapter will be repaired or replaced, at[...]

Customers in the countries shown below should send the completed registration card to the appropriate 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., Marketing Department Room 2506-07, 25/F. Citibank Tower Citibank Plaza, Central Hong Kong ■[...]

® 3C971-F ATML INK ™ PCI 155 F IBER N ETWORK A DAPTER U SER G UIDE P ar t No . 09-0897-000 Published April 8, 1996[...]

3Com Cor poration ■ 5400 Bayfront Plaza ■ Santa Clara, Calif or nia ■ 95052-8145 © 3Com Corporation, 1996. All rights reser v ed. No par t of this documentation may be reproduced in an y form or by an y means or used to make any deriv ative w ork (such as translation, tr ansformation, or adaptation) without permission from 3Com Corporation. [...]

C ONTENTS A BOUT T HIS G UIDE Introduction i How to Use This Guide i Conv entions ii 1 I NTRODUCTION 3C971-F A TMLink PCI Adapter 1-1 Product F eatures 1-2 Software Driv ers 1-3 3C971-F Adapter Installation Kit 1-3 PCI T echnology 1-3 2 H ARDWARE I NSTALLATION Installation Ov er vie w 2-1 T ools Required 2-1 Installing the 3C971-F Adapter 2-2 3 W I[...]

Editing the A UTOEXEC .NCF File 4-14 Removing a Driv er from NetW are 4-15 5 T ROUBLESHOOTING Overview 5-1 Star tup Prob lems 5-1 Bootup Problems 5-2 Applications Prob lems 5-2 Adapter Problems 5-3 A S PECIFICATIONS Hardware A-1 Memor y A-1 Bus Interf ace A-1 PCI Master A-1 PCI Slav e A-2 Interrupts A-2 Diagnostics A-2 Board Dimensions A-2 P ower R[...]

I NDEX L IMITED W ARRANTY FCC C LASS A V ERIFICATION S TATEMENT CE N OTICE[...]

F IGURES 1-1 3C971-F A TMLink PCI Adapter 1-1 2-1 Removing Expansion Slot Co v er 2-3 2-2 Adapter Card Installed in Chassis 2-3 2-3 SC Duple x Connection 2-5 3-1 Network Settings Screen 3-5 3-2 Add Network Adapter 3-5 3-3 Selecting the Flopp y Drive 3-6 3-4 Loading the 3C971-F Adapter Hardw are Driver 3-7 3-5 PCI Adapter Setup 3-7 3-6 Configuring [...]

4-10 Change IPX F rame T ype 4-9 4-11 Locating the Channel Number 4-9 4-12 Selecting the Channel Number 4-9 4-13 LECS/LES A TM Network Address Entr ies 4-10 4-14 Setting the Network Number 4-12 4-15 Prompt f or Additional Channels 4-13 4-16 Reselect the Driver f or Additional Channels 4-13 4-17 Selecting the NCF Files Editor 4-14 4-18 Selecting the[...]

A BOUT T HIS G UIDE Introduction This guide describes how to install the 3C971-F A TMLink™ PCI 155 Fiber adapter and the network drivers into a host computer system. It is intended f or system administrators or those with equiv alent technical e xperience. Throughout this guide , the 3C971-F A TMLink PCI 155 Fiber adapter is referred to as the 3C[...]

ii A BOUT T HIS G UIDE Con ventions The f ollowing tab les list te xt and icon conv entions that are used throughout this guide. Text Description 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 [...]

1 I NTRODUCTION 3C971-F A TMLink PCI Adapter The 3Com ® A TMLink ™ 3C971-F adapter suppor ts a data rate of 155 Mbps o ver a standard Asynchronous T ransf er Mode (A TM) network for Microsoft ® Windows NT ™ workstations and Nov ell ® NetW are ™ file servers with Intel ® x86-based processors. The 3C971-F adapter is a full-size, single-slo[...]

1-2 C HAPTER 1: I NTRODUCTION Product Features The 3C971-F adapter suppor ts the f ollowing f eatures: ■ 155 Mbps SONET OC-3c ov er multimode fiber ■ AAL5 A TM adaptation lay er ■ Switched vir tual circuit (SVC) software driv er ■ UNI 3.0/3.1 standard signaling f or s witched vir tual circuit (SVC) connections ■ A TM Forum standard LAN e[...]

Software Drivers 1-3 Software Drivers The A TM device driv ers f or the 3C971-F adapter are standard Windo ws NT NDIS and NetW are ODI drivers f or Intel PCI-based hardw are, and conf orm to the f ollowing: ■ A TM Forum LAN emulation standard, v ersion 1.0 ■ UNI 3.0/3.1 signaling, implemented in Windo ws NT as a standard T ranspor t Driver Inte[...]

1-4 C HAPTER 1: I NTRODUCTION The PCI specification defines two types of PCI de vices: a target and a master . A target is a device that accepts commands and responds to the requests of a master . The master , or bus master , is a more intelligent de vice that can conduct processing independently of the bus or other de vices. A bus master de vice[...]

2 H ARDWARE I NSTALLATION Installation Overview This section describes the procedure for installing the 3C971-F adapter hardware in y our host computer . F ollo w all applicable instructions included with your system documentation f or installing PCI bus adapters . Hardware installation consists of these basic steps: ■ Unpack the 3C971-F A TMLink[...]

2-2 C HAPTER 2: H ARDWARE I NSTALLATION K eep the 3C971-F A TMLink PCI adapter in the protectiv e antistatic bag until you are ready to install it. T o pre v ent adapter damage due to electrostatic discharge, w ear a grounding strap and handle the adapter only by its edges . Do not touch the components or any metal par ts on the adapter , e xcept f[...]

Installing the 3C971-F Adapter 2-3 Figure 2-1 Remo ving Expansion Slot Cov er 7 Insert the 3C971-F adapter in the selected slot, as shown in Figure 2-2. Figure 2-2 Adapter Card Installed in Chassis Expansion slot cov er Mounting screw Expansion slots 32-bit PCI slots Mounting screw[...]

2-4 C HAPTER 2: H ARDWARE I NSTALLATION 8 Press down gently and firml y on the boar d to seat it properl y . 9 Use the screw remo ved in step 6 to secure the 3C971-F adapter bracket to the system c hassis. 10 Replace the system cover . 11 Connect the 3C971-F adapter to the network. The connectors and cabling a v ailab le for the 3C971-F adapter ar[...]

Installing the 3C971-F Adapter 2-5 Figure 2-3 SC Duple x Connection Yellow (status) LED Green (link) LED Backplate SC connector port Adapter backplate SC connector port SC connector Fiber cables to ATM network[...]

2-6 C HAPTER 2: H ARDWARE I NSTALLATION 12 T urn on the power to the computer . When the computer pow er is tur ned on, the system BIOS should enable the PCI slot and initializ e the 3C971-F adapter configuration space . The 3C971-F A TMLink PCI adapter is plug-and-play with systems that are compliant with the PCI Local Bus Re vision 2.1 specific[...]

3 W INDOWS NT D RIVER I NSTALLATION Overview This chapter describes the procedure f or installing a 3C971-F A TMLink PCI adapter dr iv er f or Microsoft ¨ Windows NT™ 3.51 w orkstations. The 3C971-F adapter driver pro vides standards-based A TM LAN emulation connectivity to an A TM network. This allows y ou to run legacy LAN applications, Ethern[...]

3-2 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION addresses, Client 0 through Client 3, are assigned to the adapter . Each client has a MA C address , with Client 0 being assigned the true MAC address of the 3C971-F adapter. Clients 1 through 3 hav e a vir tual MA C address, assigned b y the driver , that is an increment of the true MAC address . D[...]

System Requirements 3-3 System Requirements The workstation must meet the f ollowing minim um requirements: ■ Intel x86 system running Microsoft Windows NT v ersion 3.51 or later ■ 24 MB of system memor y (32 MB of system memory is recommended f or multiple VLAN file ser v er applications) ■ 3.5 inch flopp y disk drive ■ IP addresses f or[...]

3-4 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Installing the Adapter Device Driver The e xamples in this chapter use the Windo ws NT environment to install the 3C971-F adapter driv er . How e ver , the driver can be installed as par t of the Custom setup procedure supplied with your Windows NT operating system. Ref er to the Microsoft Windows N[...]

Installing the Adapter Device Driver 3-5 Figure 3-1 Network Settings Screen 5 Select the Add Adapter button. The dialog bo x in Figure 3-2 appears. Figure 3-2 Add Network Adapter 6 Select the down arr ow in the Netw ork Adapter Card list bo x. 7 Select Other at the bottom of the list. 8 Select the Continue button. The Inser t Disk dialog bo x appea[...]

3-6 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Figure 3-3 Selecting the Flopp y Drive 9 Insert the device driver diskette in a floppy disk drive. Use the diskette labeled 3C971-F A TMLink PCI Adapter LANE x86 Driver Installation Disk ette f or Windows NT Workstation.[...]

Installing the Adapter Device Driver 3-7 10 If needed, change the drive designation. The def ault flopp y drive is A:, designating the A drive of y our computer . If this is not the location of the drive containing the 3C971-F adapter disk ette, change the drive location to the appropriate flopp y drive . 11 Select the OK button. The dialog bo x[...]

3-8 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION 13 Edit the PCI adapter parameters. The settings in the PCI Adapter Setup dialog bo x (Figure 3-5) are temporary settings for Client 0 of the 3C971-F adapter. The LEC applications software, presented later in this chapter , allows the user to reconfigure Client 0, if need be, and to enab le the add[...]

Installing the Adapter Device Driver 3-9 Figure 3-6 Configuring the Signaling T ranspor t This dialog bo x is accessible to the user in the Network Settings screen as a separate line item within the Installed Network Software list bo x. Ref er to Figure 3-7. 15 Edit the signaling transport items. a Set debugAPI to OFF (def ault). The debug option [...]

3-10 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION 16 When editing of the signaling items is complete, select the OK button. The software driv ers are copied to your hard disk. They include the lo w-le v el adapter hardware driver , the high-le v el UNI signaling driver , and the LAN emulation client (LEC) applications softw are. When the process i[...]

Installing the Adapter Device Driver 3-11 ■ 3C971-F A TMLink Adapter Client 3 17 Select the OK button on the Netw ork Settings screen. The TCP/IP Configuration screen for editing the network interf ace appears, as sho wn in Figure 3-8. Figure 3-8 TCP/IP Configuration with Sample Entries 18 Edit the TCP/IP parameters. At this stage of the instal[...]

3-12 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION disabled. IP addresses for disab led clients are ignored during actual operation. Contact your netw ork administrator f or the required entries in the TCP/IP Configuration tab le. If needed, ref er to the Microsoft Windo ws NT System Guide f or additional inf or mation f or selecting and enter ing[...]

Installing the Adapter Device Driver 3-13 segment, then an appropriate net mask might be 255.255.255.0. Thus , all host systems sharing common address v alues in the first three octets would be attached to the same ph ysical network segment. This is commonly called a subnet or sub-network. Assuming this scheme is consistent throughout the company [...]

3-14 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION needed, you can use dumm y IP numbers f or the disabled clients . 19 Select OK when the TCP/IP Configuration is complete. The reboot prompt shown in Figure 3-9 appears. Figure 3-9 Reboot Prompt f or Adapter Driver 20 Select Restart Now to reboot the computer . Go to the ne xt section to continue t[...]

Configuring the LAN Emulation Clients (LECs) 3-15 T o configure the LAN emulation clients, f ollo w these steps: 1 Boot the computer under Windows NT . 2 Log into y our Windows NT Administrator account. 3 At the Program Mana ger screen, select the Control P anel icon. 4 Select the Lecconf icon (shown at left) in the Control P anel. The dialog bo x[...]

3-16 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Adapter De vice Driver. ” A def ault setting of A uto Detect was recommended in that step . The Interrupt entr y in the LEC Configuration dialog bo x is not “in addition” to the entry in the previous PCI Adapter Setup dialog bo x. The edit is made av ailable in the LEC applications to giv e [...]

Configuring the LAN Emulation Clients (LECs) 3-17 Figure 3-11 LEC A TM Adapter Configuration The inf or mation required f or the client to contact the LECS or the LES ma y v ar y according to the v endor of the ser v er . For e xample , if you select the LECS option (radio b uttons at bottom of dialog bo x in Figure 3-11), 3Com’ s Cellplex 7000 [...]

3-18 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Complete substeps c–f below f or enabled clients. Otherwise, go to substep a to select another client or go to step 8 to e xit the LEC A TM Adapter configuration. c Set the MTU Size . This entr y is used by the client to request an MTU (Maximum T ransfer Unit) siz e from the ser v er . The ser v[...]

Configuring the LAN Emulation Clients (LECs) 3-19 ■ LES option: Uses the 20-byte address in the A TM Address bo x to contact the LAN emulation server directly . f Enter the A TM Address. Y ou must enter the appropriate A TM network address f or the LECS or the LES, whiche ver is selected. Unless the user enters a different address, the A TM F oru[...]

3-20 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION After you select the OK button in the LEC Configuration dialog bo x, the reboot prompt sho wn in Figure 3-12 appears. Figure 3-12 LECS/LES Reboot Prompt 10 Select OK. 11 Exit Windows NT and reboot the computer . Each time the computer is booted, the driver will contact the LECS or the LES, whiche [...]

Removing a Windows NT Driver 3-21 Removing a Windows NT Driver T o remov e an adapter and the associated software drivers from Windows NT , f ollow these steps: 1 Select the Control P anel icon from the Main group. 2 Select the Network icon to access the Network Settings screen, sho wn in Figure 3-13. Figure 3-13 Remo ving 3C971-F Adapter and Drive[...]

3-22 C HAPTER 3: W INDOWS NT D RIVER I NSTALLATION Figure 3-14 Confirming Adapter and Driver Remov al 5 Select the Y es button to remo ve all of the adapter clients and the associated software driver s. The Network Settings screen appears, as sho wn in Figure 3-15. All 3C971-F adapter clients are remov ed from the Installed Adapter Cards bo x. The[...]

Removing a Windows NT Driver 3-23 6 Click the OK button in the Netw ork Settings screen. The reboot prompt shown in Figure 3-16 appears. Figure 3-16 Reboot Prompt f or Removing Driv ers 7 Select the Restart Now button to reboot the computer . Driver remo val is complete .[...]

4 N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION Overview The 3C971-F A TMLink PCI adapter dr iv er f or file ser v ers running Nov ell ® NetW are ™ 4.1 pro vides standards-based A TM LAN emulation connectivity to an A TM network. This allows y ou to run legacy LAN applications, Ethernet networking technologies and Ether net protocols o v er an A[...]

4-2 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION ■ V er ify the system requirements. ■ Cop y the drivers to the hard drive of the server . ■ Configure the single-LAN or multi-LAN parameters . System Requirements ■ An Intel x86-based file ser v er running Nov ell NetW are V ersion 4.1 ■ 16 MB of system memor y , 24 MB recomme[...]

Loading the Novell NetWare Server Driver 4-3 Figure 4-1 NetW are 4.1 Installation Options T o select an item in any of the NetW are dialog bo x es, use the arro w ke ys to mo ve the highlight bar to the desired line, and press [Enter] to select that item. 2 Select Driver options . The screen in Figure 4-2 appears. Figure 4-2 NetW are Dr iv er Optio[...]

4-4 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION Figure 4-3 Select Additional Driver 4 Select Select an additional driver . The window in Figure 4-4 appears. Figure 4-4 Currently Installed Drivers If this is the first installation of the 3C971-F driver , it will not appear in the abov e list. 5 Press [Insert] to install an unlisted dri[...]

Loading the Novell NetWare Server Driver 4-5 Figure 4-5 Notes f or Selecting a Drive 6 Insert the 3Com 3C971-F driver diskette in a floppy drive. Use the diskette labeled 3Com 3C971-F A TMLink PCI SVC Driver Installation Disk ette f or NetW are 4.1 Ser v er (Disk 1 of 1). 7 If a path other than drive A is required, press [F3] to specify a differen[...]

4-6 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION 9 Press [Enter] to select the driver . Y ou are prompted to confirm the name of the dr iv er , as shown in Figure 4-7. Figure 4-7 SVC Driver Confirmation 10 Select Y es to copy the driver files to the server . Proceed to the ne xt section to configure the network channels. Configurin[...]

Configuring Network Channels 4-7 is alwa ys configured. When used to emulate multiple adapters, channels 2 through 4 are also configured. F or LAN emulation services, each channel becomes a LAN emulation client (LEC) and can be set to contact the LAN emulation configuration server (LECS), or set to contact a LAN emulation server (LES) directly .[...]

4-8 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION Figure 4-9 Configuring TCP/IP Network Interf ace a Enter the IP Address. This is the Inter net address f or the channel client. The f or mat is dotted decimal notation in the f or m xxx.xxx.xxx.xxx, where xxx is in the range from 0 to 255. b Enter the IP Mask. The mask is used to par tit[...]

Configuring Network Channels 4-9 Figure 4-10 Change IPX F rame T ype b Select a frame type . 4 Edit Channel number . a Use the arrow k e ys to mov e the highlight bar to the channel number in the P arameters box, as shown in Figure 4-11. Figure 4-11 Locating the Channel Number b Press [Enter]. A dialog bo x appears that lets you select the channel [...]

4-10 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION c Select the number that matches the _x number in the P arameters bo x title. F or e xample, if the title is 3C971F_1, select the number 1. If the title is 3C971F_2, select the number 2, and so f or th. 5 Enter ELAN Name . This is the network name of the ser v er that you pref er the cli[...]

Configuring Network Channels 4-11 The last f our selections in the P arameters bo x are used to choose which type of ser v er , LECS or LES, the client is to contact at bootup , and to enter the A TM network address of the ser v er . The ter m “prefix” in the parameter name ref ers to the A TM prefix por tion of an A TM Network address. The p[...]

4-12 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION d Go to step 7. ■ If you w ant the client to b ypass the LECS at bootup and contact the LES directly , do the f ollowing: a Select LES Network Prefix and enter the first thir teen bytes (26 char acters) of the LES’ s A TM network address. b Select LES ESI/SEL and enter the remainin[...]

Configuring Network Channels 4-13 Figure 4-15 Prompt f or Additional Channels 10 Do one of the follo wing: ■ Select No to e xit the configuration procedure , and go to the ne xt section (“Editing the A UTOEXEC .NCF File”) to continue the installation. ■ Select Y es to configure an additional channel. The maximum is f our channels (Channel[...]

4-14 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION The Protocols/P arameters dialog bo x in Figure 4-8 reappears. If this is the second installation of the driver , the Protocol and P arameter bo x titles will read 3C971F_2. The third installation will use 3C971F_3, and so f or th. Go to step 1 at the beginning of this section and repeat[...]

Removing a Driver from NetWare 4-15 2 Find the last BIND IPX command for the 3C971-F adapter in the A UTOEXEC.NCF file. If Channel 2 is the last channel configuration, the last Bind command should be similar to the f ollowing: bind ipx 3C971FSI_2 net=random_8_digits 3 Insert the following command in the line immediately f ollowing the last BIND I[...]

4-16 C HAPTER 4: N ET W ARE 4.1 S ERVER D RIVER I NSTALLATION Figure 4-18 Selecting the NCF Files Editor 2 Select NCF files options. This opens the A UTOEXEC .NCF file for editing. 3 Remove the LO AD and BIND commands for eac h channel of the 3C971-F adapter b y deleting all lines similar to the follo wing: load 3C971FSI.lan FRAME=Ethernet_802.2 [...]

5 T ROUBLESHOOTING Overview This chapter provides possib le solutions f or common problems encountered during installation and operation of the 3C971-F adapter. If your prob lem cannot be resolv ed with the suggestions and comments that f ollow , please contact one of 3Com’ s technical suppor t ser vices as described in Appendix B. Star tup Pr ob[...]

5-2 C HAPTER 5: T ROUBLESHOOTING Bootup Prob lems Applications Prob lems Problem Possible Solution The computer does not boot up. 1 Check to see if the system is plugged in. 2 Check to see if your monitor is plugged into your video adapter. 3 Check to see if the adapter card is properly seated in the PCI bus expansion slot. 4 Try a different PCI sl[...]

Adapter Problems 5-3 Adapter Prob lems Problem Possible Solution Host adapter is not found. The PCI system in your computer is supposed to configure the bus address locations automatically. An address conflict is probably not the problem. If the driver is correctly installed, a driver message should appear in the system driver event log after bootu[...]

A S PECIFICATIONS Hard ware Memory 512 K buff er 1 K serial EEPROM Optional e xpansion ROM 128 K control SRAM Bus Interface PCI Local Bus Specification, Re vision 2.1 PCI Compliance Checklist 32-bit zero w ait state master 132 MBps burst DMA r ate 32-bit slav e 128 byte FIFO PCI Master Zero wait states Memor y cycles only Burst size selections: 64[...]

A-2 A PPENDIX A: S PECIFICATIONS PCI Slave Memor y and configuration cycles Write posting Interrupts Interrupt pin: INT A# Diagnostics LEDs: Green: Live incoming link Y ellow: Status Board Dimensions Full-size , ra w v ariable height shor t-card Length: 167.64 mm Width: 106.68 mm P o wer Requirements 15 W (3.0 A @ 5 V) Network Connections Standard[...]

Environment A-3 En vironment A TM adaptation lay er AAL5 LAN emulation LANE 1.0 A TM signaling UNI 3.0/3.1 Item Range Operating temperature 0 to 55˚ C Storage temperature 40 to 85˚ C Relativ e humidity 5% to 95% (noncondensing)[...]

T ECHNICAL S UPPORT B 3Com provides easy access to technical suppor t inf or mation through the v ariety of ser vices described in this appendix. On-line T echnical Services 3Com off ers worldwide product suppor t se ven da ys a week, 24 hours a da y , through the following on-line systems: ■ 3Com Bulletin Board Ser vice (3ComBBS) ■ W orld Wide[...]

B-2 Appendix B: Technical Support Call the telephone number nearest y ou: Access by ISDN ISDN users can dial-in to 3ComBBS using a digital modem f or f ast access up to 56 Kbps. T o access 3ComBBS using ISDN, dial the f ollowing number: (408) 654-2703 W orld Wide W eb Site Access the latest networking inf or mation on 3Com’ s W orld Wide W eb sit[...]

On-line Technical Services B-3 3ComForum on CompuServe 3ComF orum is a CompuSer ve-based service containing patches, softw are, drivers , and technical ar ticles about all 3Com products, as w ell as a messaging section f or peer suppor t. T o use 3ComF orum, you need a CompuSer v e account. T o use 3ComForum: 1 Log on to CompuServe . 2 Enter go thr[...]

B-4 Appendix B: Technical Support Suppor t fr om Y our Netw ork Supplier If additional assistance is required, contact your network supplier . Many suppliers are authorized 3Com ser vice par tners who are qualified to provide a v ariety of ser vices , including network planning, installation, hardware maintenance , application training, and suppor[...]

Returning Products for Repair B-5 Returning Products f or Repair * These numbers are toll-free. A product sent directly to 3Com f or repair must first be assigned a Retur n Materials A uthorization (RMA) number . A product sent to 3Com without an RMA number will be returned to the sender unopened, at the sender’ s expense . T o obtain an RMA num[...]

G LOSSARY AAL A TM Adaptation Lay er . T ranslates pack ets of data to 53-byte cells f or transmission on the network. The la yers are defined to pro vide diff erent classes of ser vice f or A TM connections, and to pro vide a method of mapping data from a par ticular class of ser vice into A TM cells in such a wa y that the data can be remapped i[...]

2G LOSSARY A TM LAN T opology that consists of A TM s witches and computer interf aces that provide high data r ate connectivity f or v oice, video , and data (IP , SNA, and multimedia). BUS Broadcast and Unknown Ser v er . A ser v er within LAN emulation (f or A TM networks) that has the ability to receiv e broadcast requests from all other statio[...]

G LOSSARY 3 Cell switc hing Network technology that is used f or dela y-sensitive traffic such as v oice and video . CLP Cell Loss Prior ity . The last bit of the fourth byte in an A TM cell header . This bit indicates the cell discard prior ity . If this bit is set, the network can discard the cell when the network is congested and conditions war[...]

4G LOSSARY ILMI Interim Local Management Interface . The A TM F orum standard for incorporating network management into A TM networks. ILMI can be used as a monitor f or transf ers between a router and an A TM switch, reporting CRC error rates and perf or mance dips . IP Inter net Protocol. A network-la yer protocol that contains addressing and con[...]

G LOSSARY 5 MBps Megabytes . (1024 x 1024 bytes) per second. Multicast A technique that allows copies of a single pac ket or cell to be passed to a selected set of end stations. Multimode A large-core (62.5 micron) optical fiber through which multiple signals will propagate . NNI Network-to-Network Interface . The interface between two pieces of e[...]

6G LOSSARY PVC P er manent Vir tual Circuit. An A TM mode in which the communication circuit between tw o nodes on a network is manually set up and torn down. SAR Segmentation and Reassembly . A procedure that breaks down and reassemb les v ariable-length pack ets from legacy LAN (Ethernet and token ring) applications. The SAR chip set receives pro[...]

G LOSSARY 7 STM-1 Synchronous T ransf er Mode , le vel 1. A European standard defining a signal with a data rate of 155.52 Mbps. SVC Switched Vir tual Circuit. Creates a dynamic connection between two netw ork nodes. SVCs are created “on demand” and are torn down upon completion of the data transf er . TCP/IP T ransmission Control Protocol/Int[...]

8G LOSSARY VPI Vir tual P ath Identifier . A one-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 3Com sales offices B-4 3ComBBS B-1 3ComF acts B-3 3ComF orum B-3 A adapter card installation 2-1 connecting to network 2-4 driver description 1-3 driver installation 3-1 , 4-1 specifications A-1 troubleshooting 5-1 warning 2-2 AppleT alk protocol option 4-7 applications problems 5-2 AT M adaptation compliance A-3 la yer compliance[...]

2I NDEX IP address, configuring 3-12 , 4-8 IPX frame type 4-8 L LANE compliance A-3 LEC configuration 3-14 , 4-7 enable 3-17 e xplained 3-1 , 4-7 LECCONF icon 3-15 LECS/LES option 3-18 , 4-10 M memor y specifications A-1 MTU size 3-8 , 3-18 , 4-7 multi-LAN e xplained 4-6 multiple LECs 3-1 , 4-7 N NetW are ASIG command 4-14 channel numbers 4-9 dr[...]

LIMITED W ARRANTY HARD W 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 purchase from 3Com or its Authorized Reseller: If a product does not operate as warranted during the applicable warranty period, 3Com shall, at its o[...]

W ARRANTIES EXCLUSIVE: IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTO[...]

FCC CLASS A V ERIFICATION STATEMENT WARNING: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules, and the Canadian Department of Communications Equipment Standards entitled, “Digital Apparatus,” ICES-003. These limits are designed to provide reasonable protection [...]

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