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This chapter provides the following information for troubleshooting problems.
When an ATM module is installed in a Catalyst 2900 series switch that is powered on, the expansion slot LED on the switch and the LED on the ATM module are green, and the module POST starts automatically. If the ATM module passes the POST, the expansion slot LED remains green; if the module fails, the LED turns amber. The "Physical Description" section of the "Overview" chapter describes how to use the module LEDs to interpret the POST failures for the ATM module.
If the module LED does not illuminate, use Table 4-1 to determine the appropriate corrective action.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
Module LED is off. | No cable connected. | Connect both ends of a cable to a device. |
| Device has no power. | Ensure that both devices have power. |
| Wrong cable type. | Verify the cable type. The ATM 155 MM Fiber module typically uses an orange fiber-optic cable and the ATM 155 SM Fiber module typically uses a yellow fiber-optic cable; the ATM 155 UTP module uses Category 5 UTP cable. |
| Bad cable. | Replace with known good cable. |
Switch expansion slot LED is off. | Module not installed properly. | Remove module and reinstall. |
Module software can be corrupted. If the software is corrupted, the module does not pass POST, and there is no connectivity. Use the following procedure to recover from a corrupt or wrong image file:
Step 1 At the switch prompt, change to privileged EXEC mode by entering the enable command:
Switch> enable
Step 2 Enter the switch password, if applicable.
Password: <password>
Switch#
Step 3 Enter the copy command to copy the image.
Switch# copy tftp://server//filename slot1:boot
If this command is successful, go to the next step. Otherwise, skip Step 4 and go to Step 5.
Step 4 Restart the module using the following command:
Switch# hw-module 1 restart
If this Step is successful, the remaining Steps are not necessary. Otherwise, go to Step 5.
Step 5 (Optional) If Steps 1 through 4 did not provide successful results, enter the following command to ensure that the defective IOS image does not come up:
Switch# hw-module 1 maint
Using this command allows you to bypass the IOS image and connect to the module through the boot loader when you restart the module.
Step 6 Restart the module using the following command:
Switch# hw-module 1 restart
Step 7 (Optional) Enter the copy command to copy the image.
Switch# copy tftp://server//filename slot1:boot
Step 8 (Optional) Restart the module by entering the following command:
Switch# hw-module 1 restart
Step 9 If there is still a problem, do one of the following:
Switch> reload
Switch> dir slot1
Switch> dir slot2
Follow the steps in this procedure if you have forgotten or lost the module password.
Step 1 At the switch prompt, change to privileged EXEC mode by entering the enable command:
Switch> enable
Step 2 Enter the switch password, if applicable.
Password: <password>
Switch#
Step 3 Rename the configuration file as shown in the following example:
Switch# rename slot1:config.text slot1:config.text.old
Switch# rename slot2:config.text slot2:config.text.old
Step 4 Restart the switch and module by entering the following command at the switch prompt:
Switch# reload
Step 5 At the switch prompt, change to privileged EXEC mode by entering the enable command:
Switch> enable
Step 6 Enter the switch password, if applicable.
Password: <password>
Switch#
Step 7 Start a session on the module:
Switch# session ATM#
Step 8 At the module prompt, change to configuration mode by entering the configure terminal command.
ATM# configure terminal
Enter configuration commands, one per line. End with CNTL/Z. ATM(config)#
Step 9 Rename the configuration file to its original name by entering the rename command:
ATM# rename flash:config.text.old flash:config.text
Step 10 Copy the configuration file into memory with the copy command:
ATM# copy flash:config.text system:running-config Source filename [config.text]? Destination filename [running-config]? ATM(config)#
Press Return in response to the confirmation prompts. The configuration file is now reloaded, and you can use the normal commands to change the password.
Step 11 Enter the enable password command to change the password:
ATM(config)# enable <password string> ATM#
(where string is the password)
Step 12 Exit configuration mode by using the end command.
ATM# end
Step 13 Enter the write mem command to save the configuration.
ATM# write mem
The new password is now included in the startup configuration.
Follow these steps to download the new software and TFTP server application:
Step 1 Display the Cisco home page by pointing your browser to one of the following URLs:
Step 2 Log into CCO. You might need to register the first time you log in.
Step 3 To locate the software files from the home page, select Service and Support > Software Center > Cisco IOS Software > Cisco IOS 12.0 > 2900atm.
Step 4 Follow the instructions on the page to download the IOS image.
Step 5 Follow the instructions on the page to download and configure the TFTP server.
Before you can download new software to your module, you need to enter the IP address of your PC or workstation on the System Management page. If you are running the Cisco TFTP server, the PC IP address is displayed on the application title bar.
If you do not know the IP address, follow these steps to display it:
Follow these steps to upgrade the module software:
Step 1 At the switch prompt, change to privileged EXEC mode by entering the enable command:
Switch> enable
Step 2 Enter the switch password, if applicable.
Password: <password>
Switch#
Step 3 Enter the copy command to copy the image in slot 1 or slot 2.
Switch# copy tftp://server//filename slot1:boot
Switch# copy tftp://server//filename slot2:boot
Step 4 Restart the switch using the reload command:
Switch# reload
To upgrade the module software using CVSM, do the following from the CVSM System Configuration page:
Step 1 In the Combined Cisco IOS and Visual Switch Manager Upgrade section, enter the IP address of your TFTP server into the Server IP Address or Name of TFTP Server field.
Step 2 In the Cisco ATM Upgrade Filename field, enter the name of the image file that you downloaded from CCO.
This might be a name like C29atm-m-m-120-2.bin. Do not enter the path.
Step 3 Click Upgrade ATM Module on Slot 1 or Upgrade ATM Module on Slot 2.
The upgrade can take several minutes. The TFTP server window displays a successful message when the upgrade is complete.
Step 4 Click Reboot System to restart the switch.
Posted: Mon Mar 20 15:36:07 PST 2000
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