Cisco 3725 Hardware Installation Guide - Page 84

Reading Front-Panel LEDs

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Reading Front-Panel LEDs Appendix A Troubleshooting • Router does not boot properly, or constantly or intermittently reboots. - Make sure that all modules are firmly seated in their slots. - Check the router chassis or software. See the "Obtaining Technical Assistance" section on page xvii for information about customer service. • Router boots, but the console screen is frozen. - Check the external console connection. - Verify that the parameters for your terminal are set as follows: (a) The same data rate as configured for the router (9600 baud is the default) (b) 8 data bits (c) No parity generated or checked (d) 2 stop bits • Router powers on and boots only when a particular module is removed. - Check the module. See the "Obtaining Technical Assistance" section on page xvii for information about customer service. • Router powers on and boots only when a particular cable is disconnected. - There may be a problem with the module or cable. See the "Obtaining Technical Assistance" section on page xvii for information about customer service. Reading Front-Panel LEDs The LEDs on the front panel of the router enable you to determine router performance and operation. Figure A-1 and Figure A-2 show the LEDs on the front panel of the router. For an explanation of these LEDs see Table A-1 and Table A-2. Figure A-1 Cisco 3725 Router Front-Panel LEDs ACT LED SYS/RPS LED PWR LED PWR SYS RPS ACT Cisco 3700 SERIES PWR SYS ACT RPS 72082 Cisco 3700 Series Routers Hardware Installation Guide A-4 OL-2180-08

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A-4
Cisco 3700 Series Routers Hardware Installation Guide
OL-2180-08
Appendix A
Troubleshooting
Reading Front-Panel LEDs
•
Router does not boot properly, or constantly or intermittently reboots.
–
Make sure that all modules are firmly seated in their slots.
–
Check the router chassis or software. See the
“Obtaining Technical Assistance” section on
page xvii
for information about customer service.
•
Router boots, but the console screen is frozen.
–
Check the external console connection.
–
Verify that the parameters for your terminal are set as follows:
(a) The same data rate as configured for the router (9600 baud is the default)
(b) 8 data bits
(c) No parity generated or checked
(d) 2 stop bits
•
Router powers on and boots only when a particular module is removed.
–
Check the module. See the
“Obtaining Technical Assistance” section on page xvii
for
information about customer service.
•
Router powers on and boots only when a particular cable is disconnected.
–
There may be a problem with the module or cable. See the
“Obtaining Technical Assistance”
section on page xvii
for information about customer service.
Reading Front-Panel LEDs
The LEDs on the front panel of the router enable you to determine router performance and operation.
Figure A-1
and
Figure A-2
show the LEDs on the front panel of the router. For an explanation of these
LEDs see
Table A-1
and
Table A-2
.
Figure A-1
Cisco 3725 Router Front-Panel LEDs
72082
Cisco 3700
SERIES
PWR LED
SYS/RPS LED
ACT LED
PWR
SYS
RPS
ACT
PWR
SYS
RPS
ACT