Ofﬂine Diagnostics, Link Negotiation | 3Com 3CR990-FX-97 instruction

1Introduction

Link Negotiation

Related to ﬂow control is the auto negotiation capability, in which linked devices advertise their ﬂow control capabilities and automatically select the best common mode of communication.

Rare cases (for example, linking to a device that does not support auto-negotiation) may require that auto-negotiation be disabled on a port, thereby enabling forced link on that port. When forced link is enabled, linked devices must have matching ﬂow control capabilities. For example, a port that is set for forced link and reception ﬂow control can connect successfully only with a port that is set for forced link and transmission ﬂow control.

Ofﬂine Diagnostics

The NIC software includes ofﬂine diagnostics programs for conﬁguring, testing, and troubleshooting NICs. The conﬁguration program within the DOS diagnostics program is used for a PC running DOS or NetWare. The 3Com NIC diagnostics program (3Com NIC Doctor) is a Windows-based program used for a PC running Windows XP, Windows 2000, Windows NT 4.0, Windows Millennium Edition (Windows Me), Windows 98, or Windows 95.

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3Com 3CR990-FX-97 manual Ofﬂine Diagnostics, Link Negotiation

Contents

User Guide 3CR990-FX-97 United States Government Legend Contents Contents Troubleshooting the NIC Installing NetWare DriversConﬁguring the NIC Running NIC Diagnostics Installing the 3Com DMI AgentEtherCD Content and Navigation Installing a 3Com NIC While Installing the NOS Index Regulatory Compliance Information Page Conventions About This GuideIcon Information That About This Guide Convention Description Introduction Onboard 3XP ProcessorData Encryption Product Name/Description Model Number Supported NIC Feature Description 3CR990-FX-97 NIC FeaturesIntroduction Ofﬂoad Features 3CR990-FX-97 NIC FeaturesRemote Wake-Up and Multiple NIC Installations Remote Wake-Up Integrated Boot ROM with Managed PC Boot Agent MBA Desktop Management Interface DMI Remote Control Hot Plug NIC InstallationFlow Control Features Keep-Alive Ofﬂine Diagnostics Link Negotiation Installation Overview Safety Precautions Installation Requirements Installing Multiple NICsInstalling and Connecting the NIC Upgrading Windows 95 to Windows Installing From Diskette Making a DOS-Bootable DisketteCreating Installation Diskettes Upgrading Windows 98 to Windows Me Product Registration Click Register Product, and then Register Online Preparing the NIC and the Computer Connector Cable Maximum Network SegmentPreparing the NIC and the Computer Installing and Connecting the NIC Understanding the LEDs Description Flashing Steady Off Installing Software Getting Help Software Installation RequirementsClick Downloads Installing the Network Driver Using the EtherCD Before Installing the Network DriverInstalling NIC Drivers and Diagnostics For Windows Installing the Driver Installing the Network Driver Using the EtherCD Verifying the Driver InstallationWindows Click Device Manager Windows NT Click Have Disk Installing the Network Driver Using the EtherCD Windows Me Windows Windows Installing the Network Driver Using the EtherCD Installing the 3Com NIC Diagnostics Program Starting the 3Com NIC Diagnostics Program Starting the 3Com NIC Diagnostics Program Updating the Network Driver and NIC Software Installing Multiple NICsWindows XP, Windows 2000, Windows Me, Windows 98 Installing Multiple NICs Installing NIC Drivers and Diagnostics For Windows Enabling Ofﬂoads Using Windows Ofﬂoad FeaturesClick Conﬁgure Using Windows Ofﬂoad Features Value Offload Function EnabledConﬁguring IPSec Ofﬂoads Conﬁguring Ofﬂoads for a Group of Different NICs Ofﬂoading Encryption Processing Auto-Selecting Basic or Strong Encryption ProcessingConﬁguring IPSec for Windows Conﬁguring IPSec Ofﬂoads Select IP Security Policy Management, and then click Add Creating a Security PolicyEncryption Type Level Description Clear the Activate the default response rule check box Left pane, click IP Security Policies on Local Machine Using Windows Ofﬂoad Features Downloading the High Encryption Pack for Windows Select Un-assignPage Installing NetWare Drivers Installing and Conﬁguring the NetWare DriverUsing the Latest Support Packs NetWare Version Required Support Pack NetWare Driver Installation Requirements Installing NetWare DriversObtaining NetWare Loadable Modules Netware Packet Receive Buffers Installing the NetWare Driver Installing and Conﬁguring the NetWare DriverSlot Numbers for Multiple NICs Obtaining Slot Numbers Installing the NetWare Driver Using Inetcfg For NetWare 5.x or Verifying the PCI Slot Number Verifying the Installation and Conﬁguration From the Available Options menu, select LAN/WAN Drivers Changing NetWare Driver Conﬁguration Parameters Changing NetWare Driver Conﬁguration ParametersPage Default NIC Settings Option Description SettingsConﬁguring the NIC Mbps Conﬁguration Methods Conﬁguring the NICOption Description Method Description Requirements Using the 3Com NIC Diagnostics Program Changing General NIC Conﬁguration SettingsChanging General NIC Conﬁguration Settings Using the 3Com DOS Conﬁguration Program Conﬁguring the Managed PC Boot Agent MBA Enabling or Disabling the Boot ROM SettingBooting From the Network Conﬁguring the Managed PC Boot Agent MBA BBS BIOS-Compatible PCs Non-BBS BIOS-Compatible PCs Disabling the 3Com Logo Disabling the 3Com LogoPage Viewing the NIC LEDs in the Diagnostics Program Troubleshooting the NICInterpreting the NIC LEDs Accessing 3Com Support Databases Troubleshooting Problems with the LEDsAccessing the 3Com Knowledgebase Accessing the 3Com NIC Help System Troubleshooting the NIC Installation Problems/Error MessagesCleaning Up a Broken Installation Troubleshooting the NIC Installation Troubleshooting the Network Connection Tip Description Troubleshooting Remote Wake-Up Troubleshooting Remote Wake-UpRemoving the Network Driver Double-clickNetwork Adapters Windows 95, 98, and Me Running NIC Diagnostics Running the NIC Diagnostics Tests Running the 3Com DOS Diagnostics ProgramRunning NIC Diagnostics Running the Network Test Running the NIC Diagnostics TestsTab Description Viewing the NIC LEDs in the 3Com Diagnostics Program Viewing Network StatisticsRunning the NIC Test Click Perform NIC Test Using the 3Com Icon in the Windows System Tray Removing the 3Com NIC Diagnostics ProgramUsing the 3Com Icon in the Windows System Tray Enabling the IconPage 3CR990-FX-97 NIC Speciﬁcations HardwareNetwork Interface Environment Network cable connector Transceiver Cabling RequirementsSpeciﬁcations and Cabling Requirements Speed Installing the 3Com DMI Agent About the 3Com DMI Agent Installing the 3Com DMI Agent Installing the 3Com DMI AgentSystem Requirements Client PC Requirements Click Install 3Com DMI Agent Now Page EtherCD Content and Navigation Links Description EtherCD Content and Navigation Root Subdirectories ListEnabling Auto Insert Subdirectory Contains Text Files List Text Files ListFile Name File Description Page Windows Fresh Installation NetWare Fresh InstallationInstallation Instructions Requirements Installing a 3Com NIC While Installing the NOS \nwserver Online Technical Services 3Com Knowledgebase Web ServicesTechnical Support World Wide Web Site Support from Your Network Supplier Support from 3ComReturning Products for Repair Technical Support Index Numerics Index Mediaselect Verbose Index Regulatory Compliance Information FCC Class B Statement Regulatory Compliance Information ModelDescription