- 3com Network Interface Card User Guide
Table Of Contents
- About This Guide
- Introduction
- Overview
- 3CR990 NIC Features
- DynamicAccess LAN Agent
- Windows2000 Offload Features
- Installing and Connectingthe NIC
- Installing NICDrivers in Windows
- Installing DynamicAccess Software in Windows
- Overview
- Installing the DynamicAccess LAN Agent for a Client NIC
- Installing DynamicAccess Software for a Server NIC
- Configuring Groups and VLANs for a Server NIC
- Planning the Configuration
- Working With Server Features
- Creating a Group
- Adding NICs to a Group
- Specifying a Dedicated IP Address
- Changing an IP Address
- Creating a VLAN
- Specifying Traffic Priorities
- Saving the Configuration
- Disabling Load Balancing for a Group
- Changing the Primary NIC
- Removing a NIC from a Group
- Deleting or Editing a VLAN
- Displaying NIC Properties
- Displaying Group Properties
- Specifying Failover from Gigabit to 10/100 PCI
- Troubleshooting a Load Balancing Configuration
- Changing Windows2000 Property Settings
- Identifying Windows 2000 Miniport and LAN Connections
- Using Windows2000 Offload Features
- Installing DynamicAccess LAN Encryption Software
- Installing NetWare Client and ServerDrivers
- Overview
- Installing and Configuring the NetWare Server Driver
- Using the Latest Support Packs
- Obtaining NetWare Loadable Modules
- Server Software Installation Requirements
- Installing the NetWare 3.12 Server Driver
- Installing the Server Driver for NetWare 4.11 and 5.0 UsingINETCFG
- Installing the Server Driver and DynamicAccess Technology Using AUTOEXEC.NCF
- Installing Multiple Server NICs
- Verifying the PCI Slot Number
- Installing Server Features
- Configuring Groups
- Verifying the Installation and Configuration
- Changing NetWare Driver Configuration Parameters
- Maintaining Groups
- Configuring the NIC
- Configuring IP Security
- Troubleshooting the NIC
- Running NIC Diagnostics
- Obtaining Drivers
- Specifications and CablingRequirements
- Installing the 3ComDMIAgent
- EtherCD Content and Navigation
- Installing a 3Com NIC While Installing the NOS
- Technical Support
- Index
- FCC Class B Statement
- FCC Declaration of Conformity
- Industry Canada Class B Emission ComplianceStatement
- Avis de Conformité à la Réglementation d’IndustrieCanada
- VCCI Class B Statement
- 3Com End User Software License Agreement
- Product Registration
130 CHAPTER 8: TROUBLESHOOTING THE NIC
If a LNK LED indicates a problem, check the following:
■ Ensure that the network hub or switch and the cable
connecting to the NIC comply with the specifications
appropriate for the network connection.
■ Ensure that the hub or switch is powered on.
Viewing the NIC LEDs in the Diagnostics Program
To view the LEDs in the 3Com NIC Diagnostics program:
1 Make sure that the NIC, the network driver, and the
3Com NIC Diagnostics program are installed.
2 Open the Windows Start menu.
3 Select Programs, and then 3Com NIC Utilities.
4 Click 3Com NIC Doctor.
The 3Com NIC Diagnostics General screen appears and
displays following LEDs:
Link—lights if there is a valid connection between the NIC
and the network.
Transmit—lights if the NIC is transmitting information.
Receive—lights if the NIC is receiving information.
Duplex—indicates if the NIC is transmitting data across the
network in half-duplex mode (half the LED lights), or in
full-duplex mode (the entire LED lights).
100
LNK
(link)
On If drivers are installed, the 100BASE-TX connection is active.
If drivers are not installed, the NIC is receiving power.
Off Something is preventing the connection between the NIC and
the hub or switch.
Blinking The cable polarity is reversed. Try a different network cable or
contact the system administrator.
ACT
(activity)
Blinking Network traffic is present.
Steady Heavy network traffic is present.
Off No network traffic is present.
LED State Meaning (continued)
For instructions on using the 3Com NIC Diagnostics
program, see Running NIC Diagnostics on page 143.