Cisco 2524 Troubleshooting Guide
Cisco 2524 - Router - EN Manual
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- Cisco 2524 | Troubleshooting Guide - Page 1
APPENDIX B 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 - Cisco 2524 | Troubleshooting Guide - Page 2
Chassis/Module Router chassis LED Ethernet link (Cisco 2524)2 State On Off In-ring On (Cisco 2525) Off 2-wire switched 56-kbps, RX On 4-wire 56/64-kbps, and TX On factional T1/T1 WAN DSU/CSU modules CD (Carrier) On Serial module Loopback Alarm Activity (serial activity) On On - Cisco 2524 | Troubleshooting Guide - Page 3
data, which would interrupt normal data transmission. Getting Help For information on technical support, onsite service, and exchange and repair services, refer to the Cisco Information Packet publication that shipped with your router. Troubleshooting the Cisco 2524 and Cisco 2525 Routers B-3 - Cisco 2524 | Troubleshooting Guide - Page 4
Getting Help B-4 Cisco 2524 and Cisco 2525 Router User Guide
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APPENDIX
Troubleshooting the Cisco 2524 and Cisco 2525 Routers
B-1
B
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
1
)
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.