Cisco Systems 7500 Series Manual De Usuario

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8-9
Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0
Chapter 8      Troubleshooting a Cisco 7500 Series Router
  Troubleshooting Guidelines for the Cisco 7507 and Cisco 7507-MX
Figure 8-2
Troubleshooting Strategy for Cisco 7507 and Cisco 7507-MX Startup Problems
Identifying Cisco 7507 and Cisco 7507-MX Startup Problems
When you start up the router for the first time, you should observe the startup sequence described in the 
. This section contains a 
more detailed description of the normal startup sequence and describes the steps to take if the system 
does not perform that sequence as expected. 
With the exception of the system blower, LEDs indicate all system states in the startup sequence. By 
checking the state of the LEDs, you can determine when and where the system failed in the startup 
sequence. Use the following descriptions to isolate the problem to a subsystem, and then proceed to the 
appropriate sections (indicated in each description) to try to resolve the problem.
When you start up the system by turning on the power supply switches, the following should occur:
You should immediately hear the system blower operating (it generates an operating noise level of 
about 60 dBA). If not, proceed to the 
. If you determine that the power supplies are functioning normally 
and that the blower is faulty, contact a customer service representative. If the system blower does 
not function properly at initial startup, there are no installation adjustments that you should make.
Check system
state with interface 
processor LEDs
Turn on 
system power
Troubleshoot
power
subsystem
Reseat 
blower
and restart
Reseat RSP 
and restart
System 
startup
successful
Reseat interface 
processors
and restart
Obtain
technical 
assistance
AC or DC 
OK
LED on
?
Blower
operating
?
Blower
operating
?
RSP
LEDs
OK
Interface 
processor 
enabled 
LEDs on
?
H9723
RSP
LEDs
OK
?
No
Yes
No
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
No
Yes
Check system
state with
RSP LEDs
Interface 
processor 
LEDs 
OK
?
AC or DC 
OK
LED on
?