Cisco Systems 7500 Series manual Subsystem Yes Fans

Chapter 8 Troubleshooting a Cisco 7500 Series Router

Troubleshooting Guidelines for the Cisco 7513, Cisco 7513-MX, and Cisco 7576

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

unlikely at initial startup, ensure that heated exhaust air from other equipment is not entering the inlet vents, and that there is sufficient clearance around the sides of the chassis to allow cooling air to flow. See the “Cisco 7507 and Cisco 7507-MX Airflow Considerations” section on page 2-14for preventive site configurations.

This message could also indicate a faulty component or temperature sensor. Before the system shuts down, use the show environment or show environment table command to display the internal chassis environment. (For detailed descriptions of show commands, see the “Cisco 7507 and Cisco 7507-MX Environmental show Command Examples” section on page 2-29.)

If you are still unable to resolve the problem, contact a service representative for further instructions.

Troubleshooting Guidelines for the Cisco7513,

Cisco 7513-MX, and Cisco7576

Figure 8-3shows the general troubleshooting strategy for the Cisco 7513, Cisco 7513-MX, and Cisco 7576. Refer to this chart to isolate problems to a specific subsystem and resolve the problem, if possible.

Figure 8-3 Troubleshooting Strategy for Cisco 7513, Cisco 7513-MX, and Cisco 7576 Startup

		Problems
Turn on		DC	No	Troubleshoot	DC	No		Troubleshoot
		OK			OK
system		LED on		power	LED on			power
power
		?		subsystem	?			subsystem
		Yes			Yes
		Fans	No	Reseat	Fans	No		Check power
		operating		Fan Tray	operating			cord
		?		and restart	?			connections
		Yes			Yes
		Fans						Verify source
		operating						power integrity
		?						and restart
		RSP	No	Reseat RSP	RSP	No	Yes	DC
								OK
		LEDs			LEDs
		OK		and restart	OK			LED on
					?			?
		Yes			Yes			No
		Check system						Reseat
		state with						Fan Tray
		RSP LEDs						and restart
System	Yes	Enabled	No	Reseat cards	RSP	No	Obtain	Verify
startup					LEDs		technical	Enabled
		LED on		and restart
successful					OK		assistance	LED goes on
		?
					?
								H9724
					Yes

Cisco 7500 Series Installation and Configuration Guide

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