User's Manual

CHAPTER

4-1

Cisco Catalyst 490 0M Switch Ins talla tion Guid e

78-18350-02

Troubleshooting the Installation

This chapter describes how to trouble shoot the Catalyst 490 0M switch hardware insta llation and

contain s th ese s ecti ons:

• Getting Started, page 4-1

• Problem Solving to the System Component Level, page 4-2

• Identifying Startup Problems , page 4-2

• Troubleshooting the Power Supply, page 4-4

• Contacting Customer Service , page 4-4

If your system has problems starting up, use the informatio n in this chapter to help isol ate the cause.

Problems with the initial startup are often caused by poor or improper connections. Although

temperature conditions above the maximum acceptable level rarely occur at initial startup,

environmental monitoring functions are included because they also monitor DC-line voltages.

Note For configuration questions or problems, refer to the software configurati on guide or the command

reference publication to configure or enable the interfaces.

Getting Started

When the initial system boot is complete, verify the following:

• Power supplies are supplying power t o the system.

• The system fan assembly is operating.

• System software boots successful ly.

If all of these conditions are met and the hardware installation is complete, refer to the software

configuration guide and the comm and reference publica tions to troubleshoot the software. However, if

any of these conditions are not met, use the procedures in this chapter to isolate and, if possible, resolve

the problem.