Chapter 3 Troubleshooting
Troubleshooting Common System Problems
Step 8 The console can be frozen if the
If the cable, connections, power, and terminal settings all check out and you still cannot connect to the console port on the module, replace the module in question. If the problem persists, contact the Cisco TAC for further assistance.
Troubleshooting Common System Problems
This section describes how to troubleshoot the following common system problems on the
Cisco uBR10012 router:
•Troubleshooting System Crashes, page
•High CPU Utilization Problems, page
•Bus Errors, page
•Memory Problems, page
Troubleshooting System Crashes
System crashes occur when the router experiences an unexpected situation from which it cannot recover. In response, the router stops all processes and reloads. Crashes can result from either hardware or software problems.
When the router crashes, it is extremely important to gather as much information as possible about the crash before doing a manual reload or
In particular, use the following commands to gather more information about the crash:
•All console, system, and message logs.
•Crashinfo file, if one was generated at the time of the crash.
•All output from the following commands:
–show version
–show context
–show stacks
–show tech-support
Note Registered Cisco.com users can decode the output of these show commands by using the Output Interpreter tool, which is at the following URL:
Cisco uBR10012 Universal Broadband Router Troubleshooting Guide
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