Reference Guide

Debugging and Diagnostics
Use the debugging and diagnostics commands described in this chapter to troubleshoot switch operation.
This chapter contains the following sections:
● Offline Diagnostic Commands
● Buffer Tuning Commands
● Hardware Commands
Topics:
• Diagnostics and Monitoring Commands
• Offline Diagnostic Commands
• Buffer Tuning Commands
• Hardware Commands
Diagnostics and Monitoring Commands
The following section describes the diagnostics and monitoring commands.
For similar commands, refer to the Control and Monitoring chapter.
logging coredump
Enable a core dump.
Syntax
logging coredump {cp | linecard {slot-number |all} } rps}
Parameters
cp Enter a core dump for the Control Processor.
linecard Enter a core dump for a line card.
rps Enter a core dump for Route Processor 1 or 2.
Defaults The kernal core dump is enabled by default for the Route Processor (RP 1 and 2 on the E-Series). The
kernel core dump for the Control Processor and application core dump are disabled on all systems by
default.
Command Modes CONFIGURATION
Command
History
Version 9.7(0.0) Introduced on the Z9500.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.7.1.0 Restructured the command to accommodate core dumps for CP. Introduced on the
C-Series and S-Series.
Version 6.5.1.0 Application coredump naming convention enhanced to include application.
Version 6.1.1.0 Introduced
Usage
Information
The kernel core dump can be large and may take up to five to 30 minutes to upload. The system does not
overwrite application core dumps so you should delete them as necessary to conserve space on the flash.
If the flash is out of memory, the core dump is aborted. The system completes the core dump process
and waits until the upload is complete before rebooting the system.
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