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

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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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Contents User Guide 3CR990-FX-97United 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 NOSIndex Regulatory Compliance Information Page Conventions About This GuideIcon Information That About This Guide Convention DescriptionIntroduction Onboard 3XP ProcessorData Encryption Product Name/Description Model NumberSupported NIC Feature Description 3CR990-FX-97 NIC FeaturesIntroduction Ofﬂoad Features 3CR990-FX-97 NIC FeaturesRemote Wake-Up and Multiple NIC Installations Remote Wake-UpIntegrated Boot ROM with Managed PC Boot Agent MBA Desktop Management Interface DMIRemote Control Hot Plug NIC InstallationFlow Control Features Keep-AliveOfﬂine Diagnostics Link NegotiationInstallation Overview Safety PrecautionsInstallation Requirements Installing Multiple NICsInstalling and Connecting the NIC Upgrading Windows 95 to WindowsInstalling From Diskette Making a DOS-Bootable DisketteCreating Installation Diskettes Upgrading Windows 98 to Windows MeProduct Registration Click Register Product, and then Register OnlinePreparing 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 OffInstalling 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 DriverInstalling the Network Driver Using the EtherCD Verifying the Driver InstallationWindows Click Device ManagerWindows NT Click Have DiskInstalling 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 ProgramUpdating 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 NICsOfﬂoading Encryption Processing Auto-Selecting Basic or Strong Encryption ProcessingConﬁguring IPSec for Windows Conﬁguring IPSec OfﬂoadsSelect 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 MachineUsing 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 PackNetWare Driver Installation Requirements Installing NetWare DriversObtaining NetWare Loadable Modules Netware Packet Receive BuffersInstalling the NetWare Driver Installing and Conﬁguring the NetWare DriverSlot Numbers for Multiple NICs Obtaining Slot NumbersInstalling the NetWare Driver Using Inetcfg For NetWare 5.x orVerifying the PCI Slot Number Verifying the Installation and Conﬁguration From the Available Options menu, select LAN/WAN DriversChanging NetWare Driver Conﬁguration Parameters Changing NetWare Driver Conﬁguration ParametersPage Default NIC Settings Option Description SettingsConﬁguring the NIC MbpsConﬁguration Methods Conﬁguring the NICOption Description Method Description RequirementsUsing 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 MBABBS BIOS-Compatible PCs Non-BBS BIOS-Compatible PCsDisabling 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 SystemTroubleshooting the NIC Installation Problems/Error MessagesCleaning Up a Broken Installation Troubleshooting the NIC InstallationTroubleshooting the Network Connection Tip DescriptionTroubleshooting Remote Wake-Up Troubleshooting Remote Wake-UpRemoving the Network Driver Double-clickNetwork AdaptersWindows 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 TestUsing 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 EnvironmentNetwork cable connector Transceiver Cabling RequirementsSpeciﬁcations and Cabling Requirements SpeedInstalling the 3Com DMI Agent About the 3Com DMI AgentInstalling the 3Com DMI Agent Installing the 3Com DMI AgentSystem Requirements Client PC RequirementsClick Install 3Com DMI Agent Now Page EtherCD Content and Navigation Links DescriptionEtherCD Content and Navigation Root Subdirectories ListEnabling Auto Insert Subdirectory ContainsText Files List Text Files ListFile Name File Description Page Windows Fresh Installation NetWare Fresh InstallationInstallation Instructions RequirementsInstalling a 3Com NIC While Installing the NOS \nwserverOnline Technical Services 3Com Knowledgebase Web ServicesTechnical Support World Wide Web SiteSupport from Your Network Supplier Support from 3ComReturning Products for Repair Technical SupportIndex NumericsIndex MediaselectVerbose Index Regulatory Compliance Information FCC Class B StatementRegulatory Compliance Information ModelDescription