Cisco Systems 7500 Series manual Identifying Cisco 7507 and Cisco 7507-MX Startup Problems

Chapter 8 Troubleshooting a Cisco 7500 Series Router

Troubleshooting Guidelines for the Cisco 7507 and Cisco 7507-MX

R E V I E W D R A F T — C I S CO CO N F I D E N T I A L

Figure 8-2 Troubleshooting Strategy for Cisco 7507 and Cisco 7507-MX Startup Problems

Turn on	AC or DC	No	Troubleshoot	AC or DC	No
system power	OK		power	OK
	LED on		subsystem	LED on
	?			?
	Yes			Yes
	Blower	No	Reseat	Blower	No
	operating		blower	operating
	?		and restart	?
	Yes			Yes
	Check system
	state with
	RSP LEDs
	RSP	No	Reseat RSP	RSP	No
	LEDs			LEDs
	OK		and restart	OK
				?
	Yes			Yes
	Check system
	state with interface
	processor LEDs

System	Yes	Interface	No	Reseat interface	Interface		No	Obtain
		processor			processor
startup				processors				technical
		enabled			LEDs
successful				and restart				assistance
		LEDs on			OK
		?			?
						Yes

H9723

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 “Starting the System and Observing Initial Conditions” section on page 4-2. 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 “Troubleshooting the Cisco 7507 and Cisco 7507-MX Power Subsystem” section on page 8-10. 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.

Cisco 7500 Series Installation and Configuration Guide

OL-5008-03 B0 8-9