HP Embedded Firewall Series Instrukcja Użytkownika Pobierz pdf (Strona 58)

12 Troubleshooting the NIC

3CR990B-FX-97 NIC

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.

Troubleshooting Problems with the LEDs

If a Link LED indicates a problem, check the following to ensure that:

1 Your network hub or switch and the cable connecting to your NIC comply with the

specifications appropriate for your network connection.

2 The hub or switch is powered on.

LED State Meaning

100 LNK Green If drivers are installed, the 100BASE-FX connection is

active; there is a good connection between the NIC and

the hub or switch.

Blinking N/A

Off Something is preventing the connection between the

NIC and the hub or switch.

ACT LNK Yellow Heavy network traffic is present.

Blinking Network traffic is present.

Off No network traffic is present.

NOTE: For instructions on using the 3Com NIC Diagnostics program, see “Using

the 3Com NIC Diagnostics Program” on page 47.

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 85 86

Brak uwag

HP Embedded Firewall Series Instrukcja Użytkownika Strona 58