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APPENDIX

Troubleshooting the Cisco 2524 and Cisco 2525 Routers B-1

Troubleshooting the Cisco 2524

and Cisco 2525 Routers

This appendix describes how to troubleshoot the Cisco 2524 and Cisco 2525 routers by

referring to the LEDs on the rear panel of the chassis (see Figure 1-2 and Figure 1-3) and

on the network processor modules (see Figure 1-4 through Figure 1-9).

The LEDs indicate the current operating condition of your router. You can observe the

LEDs, note any fault condition that the router is encountering, and then contact your system

administrator or a customer service representative, if necessary. Table B-1 describes the

LEDs on the router chassis and WAN modules.

Table B-1 LEDs

Chassis/Module LED State Description

Router chassis Power On steadily Power is being supplied to the router.

Off Power is not reaching the router. Verify that the power

supply is plugged into the wall receptacle, and that the

cable from the power supply to the router is

connected.

Activity

(Ethernet/

Token Ring

)

Flickering The Ethernet/Token Ring LAN connection is

transmitting and receiving data normally.

Off The Ethernet/Token Ring LAN connection is not

transmitting or receiving data. Check the

Ethernet/Token Ring cable connection.

1 2 3 4

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Página 1 - APPENDIX

APPENDIX Troubleshooting the Cisco 2524 and Cisco 2525 Routers B-1BTroubleshooting the Cisco 2524and Cisco 2525 RoutersThis appendix describes how to

Página 2

B-2 Cisco 2524 and Cisco 2525 Router User GuideRouter chassis Ethernet link(Cisco 2524)2On The router senses the Ethernet 10BaseT link integritysignal

Página 3 - Getting Help

Troubleshooting the Cisco 2524 and Cisco 2525 Routers B-3Running Diagnostic TestsRunning Diagnostic TestsIf you have the fractional T1/T1 module, you

Página 4

B-4 Cisco 2524 and Cisco 2525 Router User GuideGetting Help

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