HP 480 manual Verifying LED Operation on the HP Router ER, TR, and SR, C a u t i o n

C a u t i o n

Troubleshooting

Verifying LED Operation

Verifying LED Operation

If you suspect a non-operating LED, reset the router to verify the LEDs.

Resetting the router causes bridging and routing tables to be reset.

Verifying LED Operation on the HP Router ER, TR, and SR

1.Press and hold the Reset button while you verify that the ~Line On and Fault LEDs on the front of the router are lit and that the Power, Fault, Self-test, and Net Fail LEDs on the back of the router all are lit while you are pressing the button. (For the Router TR only, the Rx and Insert LEDs for the token ring port will also light when you press the Reset button.)

2.Then release the button—which begins router initialization—and verify that the Self-test LED is lit. After the Self-test LED turns off (in about one minute), if you have running networks connected to the WAN and Ethernet/802.3 ports, then you should see Tx and Rx and Activity LEDs blink for passing traffic on these ports. If all of this happens, the LEDs are verified.

Verifying LED Operation on Other Router Models

Use this method to verify the LEDs on HP routers other than the HP Router ER, TR, and SR models.

Press and hold the Reset button. All LEDs should light. If any LED does not light, either the LED or its driver circuit has failed. Normally, after you release the Reset button, only the Power, Self-test, and Ethernet/802.3 (AUI/BNC) connector LEDs will be lit.

Troubleshooting 3

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