HP 10-Base-T Instrukcja Instalacji Pobierz pdf (Strona 30)

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Troubleshooting

Hub Maintenance Tasks

There are several hub maintenance tasks you can perform. They include:

■ testing the hub only

■ clearing a password from the ASCII console

■ running connectivity tests

Each of these tasks is described in the following sections.

Testing the Hub Only

If you believe that the hub is not operating correctly, you can test it to

determine normal operation in two ways:

■ pressing the Reset Button.

■ remove and reinsert the power cord for that hub.

This procedure will cause the hub to complete its power-on self-test. If any

error conditions exist in the hub, the LEDs should display the condition.

Clearing a Password for the ASCII Console

On the HP J3301A and HP J3303A, you can use the Clear button to clear a

forgotten console password that was previously configured on the hub. The

password is configured from the ASCII console. Note that the HP J3300A and

HP J3302A hubs do not have a Clear button because they do not have password

setting capability because they are unmanageable hubs.

Figure 2-1. Clearing a Password

To clear the password for the HP J3301A and the HP J3303A, follow these steps:

1. Verify the hub has powered-up, passed power-on self test, and that the

Power LED is lit.

2. Press the Clear button for 10 seconds.

Clear Button

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HP 10-Base-T Instrukcja Instalacji Strona 30