Cisco 3700 series User Manual

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
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Cisco 3700 SERIES
PWR LED
SYS/RPS LED
ACT LED
PWR
SYS
RPS
ACT
PWR
SYS
RPS
ACT

Cisco 3700 series Specifications

General

Brand	Cisco
Model	3700 series
Category	Network Router
Language	English