Table of Contents

Troubleshooting

Diagnostics
Troubleshooting Flowchart

Testing the Configuration

Checking the PAM Installation

This chapter describes procedures used to confirm that the ATM switch PAMs are operational and that initial configuration procedures were successful. It includes the following sections:

• Troubleshooting

• Testing the Configuration

Troubleshooting

Your PAM went through extensive testing and burn-in before leaving the factory; however, if your system appears to have problems starting up, use the information in this section to help isolate the cause. Problems with the initial startup are most likely caused by an ASP, CM, PAM, or power supply that has become dislodged from the backplane or chassis power connector.

This chapter covers only troubleshooting the PAM. Refer to the following documents to troubleshoot the LightStream 1010 ATM switch chassis installation and ATM switch processor (ASP):

• LightStream 1010 ATM Switch Hardware Installation Guide

• LightStream 1010 ATM Switch ASP Installation Guide

When the troubleshooting procedures in these documents have been completed, continue with the following PAM troubleshooting steps in the following sections:

• Return to the section "Connecting the Interface Cables and Checking LEDs" in the individual PAM cabling and configuring chapter to check the interface connections and the PAM LEDs.

• Testing the Configuration---Use the commands listed in this section to test the interface connection.

If each of these conditions is met, the hardware installation is complete, and you should proceed to the section "Starting the System" in the LightStream 1010 ATM Switch Hardware Installation Guide or Catalyst 5000 Series Installation Guide. If the startup sequence fails before these conditions are met, use the procedures in this chapter to isolate and, if possible, resolve the problem. If you are unable to easily solve the problem, contact a customer service representative for assistance and further instructions. Before you call, have the following information ready to help your service provider assist you as quickly as possible:

• Date you received the LightStream 1010 ATM switch

• Chassis serial number (located on a label on the front of the chassis)

• Type of software and release number

• Brief description of the problem you are having

• Brief explanation of the steps you have already taken to isolate and resolve the problem

• Maintenance agreement or warranty information

Diagnostics

The power-up or hardware reset diagnostics provide full sets of test suites to test the LightStream 1010 ATM switch hardware. The test results are stored in the switch memory and an interface is provided using the show diag power-on command. If an error is detected during the test, the ASP STATUS LED shows RED. The watchdog timer timeout or software warm-start can run minimum diagnostics.

Figure 10-1 is an example of a power-on diagnostics display.

If a failure occurs, an "F" is inserted instead of the period (.); the period (.) indicates that the test passed. For example, in Figure 10-1, power-supply two (PS2) failed the power-on diagnostics test.

Troubleshooting Flowchart

Figure 10-2 is a flowchart to help you determine which component of your LightStream  1010 might have malfunctioned.

See the following sections in each of the individual port adapter module chapters for LED descriptions:

• 155 Module LEDs

• 622 Module LEDs

• DS-3 and E3 Module LEDs

• T1 and E1 Module LEDs

• CES T1 and E1 Module LEDs

• 25 Mbps Module LEDs

Testing the Configuration

Table 10-1 describes commands used to confirm the current hardware, software, and interfaces for the LightStream 1010.

Table 10-1: Initial Configuration Testing Commands

Command	Description
show version	Confirms the correct version and type of software is installed.
show hardware	Confirms the type of hardware installed in the system.
show interface ethernet	Confirms the Ethernet configuration.
show atm address	Confirms the ATM address is configured correctly.
ping atm	Tests for connectivity between the switch and a host.
show atm interface	Confirms the ATM interfaces are configured correctly.
show atm status	Confirms the status of the ATM interfaces.
show atm vc	Confirms the status of ATM virtual interfaces.
show running-config	Confirms the configuration being used is configured correctly.
show startup-config	Confirms the configuration saved in NVRAM is configured correctly.

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