Cisco Systems 7200 VXR manual Problem Solving Using a Subsystems Approach, Action

Chapter 5 Troubleshooting the Installation

Troubleshooting Overview

Table 5-1 General Troubleshooting Strategy

	Action	Yes	No
Step 1	Turn power on. Go to Step 2.	—	—
Step 2	PWR OK LED on?	Go to Step 3.	Troubleshoot power
			subsystem.
Step 3	Fans operating?	Go to Step 5.	Troubleshoot cooling
			subsystem.
Step 4	Fans operating?	Go to Step 5.	Obtain technical
			assistance.
Step 5	Check system state with I/O controller LEDs.	Go to Step 7.	Reseat the NPE-G1 or
	I/O controller LEDs OK?		NPE-G2 and restart or
			reseat I/O controller
			and restart. Then go to
			Step 6.
Step 6	NPE-G1, NPE-G2, or I/O controller LEDs OK?	Go to Step 7.	Obtain technical
			assistance
Step 7	Check system state with port adapter LEDs.	System startup	Reseat the port
	Port adapter enabled LEDs on?	successful.	adapters and restart. Go
			to Step 9.
			If a Port Adapter Jacket
			Card is installed with
			an NPE-G1 or
			NPE-G2, remove the
			port adapter from it and
			reseat. Go to Step 8.
Step 8	If installed, check Port Adapter Jacket Card	Go to Step 9.	Remove the port
	power and enabled LEDs. LEDs on?		adapter, then the Port
			Adapter Jacket Card,
			and then reseat the Port
			Adapter Jacket Card
			and port adapter. Go to
			Step 9.
Step 9	Port adapter enabled LEDs on?	System startup	Obtain technical
		successful.	assistance.

Problem Solving Using a Subsystems Approach

The key to solving problems with the system is isolating the problem to a specific subsystem. The first step in solving startup problems is to compare what the system is doing to what it should be doing. Because a startup problem is usually caused by a single component, it is more efficient to first isolate the problem to a subsystem rather than troubleshoot each component in the system. For these troubleshooting procedures, consider the following subsystems:

•Power subsystem—This subsystem comprises the power supplies, the external power cable, and the midplane.

Cisco 7200 VXR Installation and Configuration Guide

5-2 OL-5013-09