Low-Priority Ratio Natural Packet Interval

BADVANCED PACE FEATURES

Additional Ranges Tab	B-1
Advanced Options Tab	B-2
FIFO Packet Threshold		B-3
Concurrent UDP Streams		B-3
Low-Priority Ratio	B-3
Natural Packet Interval		B-3
Disable Switch Packet Prioritization			B-4
Disable Receive Packet Buffering			B-4

CCROSSOVER CABLE TROUBLESHOOTING TIPS

Troubleshooting Hubs with Crossover Cable C-1

D TECHNICAL SUPPORT

Online Technical Services	D-1
World Wide Web Site	D-1
3Com Bulletin Board Service		D-1
Access by Analog Modem		D-2
Access by Digital Modem		D-2
3ComFacts Automated Fax Service			D-2
3ComForum on CompuServe Online Service D-3
Support from Your Network Supplier			D-3
Support from 3Com D-4
Returning Products for Repair D-6

INDEX

3COM CORPORATION LIMITED WARRANTY

FCC CLASS B STATEMENT

FCC DECLARATION OF CONFORMITY

3COM END USER SOFTWARE LICENSE AGREEMENT

Page 8

Image 8

PictureTel III ISA manual Low-Priority Ratio Natural Packet Interval, Disable Receive Packet Buffering

Contents

EtherLink III ISA Network Interface Card User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Lifetime Limited Warranty Sweden, Finland, Norway Contents To Conﬁgure Dynamic Access Software To Not Save Installation SettingsRunning the AutoLink Install Program To Obtain an IP Address Automatically NIC Test Network Test Uninstalling the NIC Performing Automated InstallationsInstalling from a Diskette Checklist Low-Priority Ratio Natural Packet Interval Disable Receive Packet BufferingTroubleshooting Hubs with Crossover Cable C-1 DNS Conﬁguration Screen Update Device Driver Wizard ScreenSelect Device Screen Save Installation Settings Screen Option Settings Diagnostic ProgramsTables Parameters for 3C509B NIC ModelsPage If you are looking for Turn to How to Use This GuideAbout this Guide Conventions List conventions that are used throughout this guideIcon Alerts you to Convention Description Network Interface Card Installation Network Interface Card Overview NIC Model Cable Connector Transceiver Network Segment Before You Begin3Com 3C509B EtherDisk diskettes 1 Maximum Installing the NIC 2Installing the 3C509B NIC Connecting to the Network Go to Link LED later in this chapter 4Connecting to the BNC Port on the 3C509B-TPC NIC If the NIC LED indicates a problem, check the following Link LEDGo to the next section Describes the LED statesPage Express Installation Setup for Custom InstallationSelecting the Type of Installation Windows 95 Setup Custom InstallationFuture installations Multiple NIC Installations Windows 95 Setup 3Com Installation Wizard Click OK Performing the Preinstallation ProcedureFollow these steps to perform the preinstallation procedure Turn the power on and boot Windows Conﬁguring the NIC in a Plug and Play PC Click Finish 3Com Installation Wizard starts. Go to ChapterInsert EtherDisk diskette 1 in drive a Click Next Plug and Play is disabled on the NIC Disabling Plug and Play on the NICDOS Pnpdsabl screen appears, as shown in Figure Next step is to conﬁgure the NIC Select No, and then click Next Conﬁguring the NICAdd New Hardware Wizard starts and displays the ﬁrst screen 8Install from Disk Screen Windows NT Setup 10I/O Range Assigned to the NIC Screen Windows NT Setup Network screen appears Select OEM Option screen appears Custom Installation Follow these steps to perform a Custom installation To Accept Conﬁguration Settings Conﬁguring the NIC Testing the NIC and the Network Connection To Modify Conﬁguration Settings Follow these steps to test the NIC Message conﬁrms that the NIC is functioning correctlyNetwork Connection Test screen appears, as shown in Figure Follow these steps to test the network connection Installing TCP/IP Under Windows To Not Install TCP/IPTo Install TCP/IP Select the No radio button Click Next Conﬁguring TCP/IP Under Windows To Obtain an IP Address AutomaticallyFollow these steps to obtain an IP address automatically Go to Conﬁguring DNS later in this chapter To Specify an IP Address Manually Click Add New Gateway to add the new gateway conﬁguration Conﬁguring DNS To Obtain a DNS Address AutomaticallyFollow these steps to obtain a DNS address automatically Message conﬁrms that the DNS connection is functioning To Specify a DNS Address Manually Follow these steps to specify a DNS address manuallyNew server appears in the Servers list box Next step is to identify your PC on the network Next step is to conﬁgure DynamicAccess software Identifying Your PC on the NetworkFollow these steps to enter ﬁeld data Type the name of your computer Conﬁguring DynamicAccess Software To Not Conﬁgure DynamicAccess Software Double-click the 3Com Pace Conﬁg icon shown in Figure To Conﬁgure DynamicAccess SoftwarePace Support Setup screen appears, as shown in Figure Repeating a Previous Installation To Not Save Installation Settings To Save Installation Settings Select the Yes radio button, and then click Next Installation Complete screen appears, as shown in Figure Click Finish Click Yes Completing the Installation and ConﬁgurationWindows Windows NT Click Close Choose a method to conﬁgure TCP/IP 19Microsoft TCP/IP Properties Screen Select the Specify an IP address radio button Page Configuration Running the AutoLink Install ProgramUnder Windows AutoLink Requirements AutoLink program menu is displayed I N N U Installing Other Supported Network Drivers Obtaining NetWare Loadable ModulesNetWare Server NLM Name Network Text File Name Network Driver Name Operating System Removing NIC Software NIC software is removed from your PCSelect Conﬁgure NIC and press Enter NIC Conﬁguration screen is displayed, as shown in Figure Reconﬁguring the NIC Select Auto Conﬁgure and press Enter Changing NIC Conﬁguration from ISA to Eisa Follow these steps to conﬁgure the 3C509B ISA NIC for an Changing NIC Conﬁguration from Eisa to ISA Changing Conﬁguration Settings Option Default Setting Supported Settings Follow these steps to change the conﬁguration settings Page Resolving Hardware Conﬂicts in Windows 95 and Windows NT Windows 95 Windows NT TroubleshootingChecklist System Properties window is displayed Close all open windows and restart the PC Restart the PC General tab of the 3Com NIC Diagnostics program appearsDouble-click the 3Com icon in the taskbar tray Installing Multiple NICs in a Windows NT PC Installing the First NICSetup program copies ﬁles, and the Network screen reappears 3Com EtherLink III 3C509 ISA Adapter Bus screen appears Installing Subsequent NICs Setup program displays a warning messageMicrosoft TCP/IP Properties screen appears Files are copied, and the Network screen reappears Windows 95 and Windows NT Troubleshooting Diagnostic Testing Under Windows 95 and Windows NTStarting the 3Com NIC Diagnostics Program Messages are displayed, and you are prompted to reboot Diagnostics DynamicAccessTab Description General Conﬁguration Uninstalling the NIC Running Tests Reinstalling NIC Software Click Remove Click OK Performing Automated Installations Installing from the Hard DiskInstalling from a Diskette Click Install Windows Troubleshooting Diagnostic Testing Under Windows Starting the DOS Conﬁguration and Diagnostic Program If multiple NICs are installed, each NIC is listedRunning the Group 1 Tests Select the NIC you want to test and press Enter Failure in this test usually indicates a cabling problem Running the Group 2 TestFollow these steps to run the Group 1 tests Assembling a Loopback Plug Setting Up an Echo Server Follow these steps to set up an echo serverRunning the Group 3 Test Starting the Group 2 Test Starting the Group 3 Test Main window of the diagnostic program is displayedDiagnostic NIC Installed Program Name Echo Server Getting Help If a Test Fails Specifications NIC Speciﬁcations Pin Function RJ-45 Connector Pin AssignmentsAUI Connector Pin Assignments Cable Speciﬁcations TypeExamplePage Additional Ranges Tab Additional Ranges tab is shown in Figure B-1 Advanced Options Tab Click Add Fifo Packet Threshold Concurrent UDP StreamsLow-Priority Ratio Natural Packet Interval This option disables the receive packet buffer Disable Switch Packet PrioritizationDisable Receive Packet Buffering Troubleshooting Hubs with Crossover Cable Crossover Cable To make a crossover cable, connect TD+ to RD+ and TD- to RD Figure C-1Straight-Through and Crossover Cable Pinouts World Wide Web Site Online Technical Services3Com Bulletin Board Service 3ComFacts Automated Fax Service Access by Analog ModemAccess by Digital Modem 408 654 3ComForum on CompuServe Online Service Support from Your Network SupplierTo use 3ComForum Log on to CompuServe Support from 3Com Regional Sales Office Telephone Number 3Com Corporation 3Com Ireland Country Telephone Number Fax Number Returning Products for RepairTo obtain an RMA number, call or fax Index Numbers Index NIC Page 3Com Corporation Limited Warranty FCC Class B Statement FCC Declaration of Conformity Page Page Page Page Page

PictureTel III ISA Low-Priority Ratio Natural Packet Interval, Disable Receive Packet Buffering

Models: III ISA

BADVANCED PACE FEATURES

Low-Priority Ratio

Natural Packet Interval

Disable Receive Packet Buffering

Troubleshooting Hubs with Crossover Cable C-1

D TECHNICAL SUPPORT