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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 22 Administering the Switch
Displaying System Status Information for Technical Support
Generating a System Status Report
Using a single command, you can generate a report that contains status information about your switch.
The generated information is useful if you need to report a problem to the Cisco Technical Assistance
Center (TAC). This command is a combination of several show system status commands. You can
upload the output of the command to a TFTP server, where you can send it to TAC.
You can use keywords to limit the output to certain areas, such as the specific modules, VLANs, ports,
and so forth. If you do not specify any keywords, a report for the entire system is generated.
To generate a report and upload the report to a TFTP server, perform this task in privileged mode:
This example shows a report that is sent to host 172.20.32.10 to a filename that you supply. No keywords
are specified, so the complete status of the switch is included in the report.
Console> (enable) write tech-support 172.20.32.10 tech.txt
Upload tech-report to tech.txt on 172.20.32.10 (y/n) [n]? y
Finished network upload. (67784 bytes)
Console> (enable)
Using System Dump Files
The core dump and the stack dump generate reports that contain the status information about your
switch. Send the images that are captured by the core dump or the stack dump to Cisco TAC for analysis.
Enabling and Disabling the Core Dump
A core dump produces a comprehensive report of images when your system fails due to a software error.
This report contains the system memory content, including the text, code, and stack segments. The core
image is produced in Cisco core file format and is stored in the file system. By examining the core dump
file, TAC can analyze the error condition of a terminated process.
Enter the set system core-dump command to enable or disable the core dump. If the switch has a
redundant supervisor engine, the standby supervisor engine takes over automatically before the core
dump occurs. The previously active supervisor engine resets itself after the core dump is complete.
To enable or disable the core dump, perform this task in privileged mode:
This example shows how to enable the core dump:
Console> (enable) set system core-dump enable
(1) In the event of a system crash, this feature will
cause a core file to be written out.
(2) Core file generation may take up to 20 minutes.
(3) Selected core file is slot0:crash.hz
Task Command
Generate a system status report that
you can send to TAC.
write tech-support {host} {filename} [module mod] [port
mod/port] [vlan vlan] [memory] [config]
Task Command
Enable or disable the core dump. set system core-dump {enable | disable}
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