Appendix C Troubleshooting
Troubleshooting the Boot Process
SCM Boot and Verification of the Modules
After the CSS 11503 or CSS 11506 completes the OffDM boot process, it displays the main banner and starts the Online Diagnostic Monitor (OnDM). During OnDM, the SCM downloads software to each of the modules and boots the modules. Then, the SCM verifies that each module is functioning.
If there is a failure on a module, the SCM attempts to boot the module three times. If the SCM is unsuccessful, the CSS generates the following log message and saves it in the boot.log file:
CHMGR: Slot slot/subslot had diagnostic failures - NOT STARTING UP
Then the SCM shuts down the slot and no longer recognizes it. If you use the show chassis command, the slot does not appear. If a module failure occurs:
1.Power down the CSS.
2.Reseat the module.
3.Power on the CSS.
If reseating the module does not correct its failure, replace the module.
For additional information on troubleshooting the modules during normal CSS operation, see “Troubleshooting the CSS 11501”. For information on log files, see “Log File Information”.
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