Users Guide

file, you must perform an FTP to the Control Processor CPU flash directory where the application core
dump is stored in the following formats:
• An application core dump generated from CP of the RPM:
f10Ch<Chassis ID>_rpm<0/1>_cp_<ProcessName>_<timestamp>.acore.gz
• An application core dump from RP application:
f10Ch<Chassis ID>_rpm<0/1>_rp_<ProcessName>_<timestamp>.acore.gz
• An application core dump from LP application:
f10Ch<Chassis ID>_lp<slot#>_<Process Name>_<timestamp>.acore.gz
• An application core dump generated from LM:
f10Ch<Chassis ID>_lp<slot#>_<Process Name>_<timestamp>.acore.gz
Where cpu specifies a system’s CPU and is one of the following values: cp (Control Processor), rp (Route
Processor), lp0 (line-card processor 0), lp1 (line-card processor 1), or lp2 (line-card processor 2);
application specifies the name of the executable that has crashed;
timestamp is a text string in the format: yymmddhhmmss (YearMonthDayHourMinuteSecond).
You can also configure the system to automatically move (upload) an application core dump to an
external FTP server. Use the logging coredump server server-ip-address username ftp-
username password ftp-password command in global configuration mode to configure an FTP
server.
When you enter the logging coredump server command, you are required to enter a password. Use
the password of the FTP server where the core files are to be copied. The password can be up to 15
characters; special characters are allowed. After you enter the password, an FTP URL is created with the
credentials in the operating system. The CLI monitors application core dumps in the unit.
NOTE: On the system, when you enable core dumps of application crashes to be uploaded to an
FTP server, only core dumps from the Control Processor are uploaded to the server. Application
core-dump files from the Route Processor and line-card CPUs are moved to flash memory on the
Control Processor CPU and can be accessed by performing an FTP to the Control Processor (CP)
core-dump directory:
• The application core-dump file for the Route Processor is stored at: flash:/CORE_DUMP_DIR/
f10rp_application_timestamp.acore.gz
• The application core-dump file for a line-card processor is stored at:flash:/CORE_DUMP_DIR/
f10lpslot-number_application_timestamp.acore.gz
To disable the automatic uploading of application core dumps, enter the no logging coredump
server
command.
Mini Core Dumps
Dell Networking OS supports mini core dumps for kernel crashes. The mini core dump applies to Master
units.
Kernel mini core dumps are always enabled. The mini core dumps contain the stack space and some
other very minimal information that can be used to debug a crash. These files are small files and are
written into flash until space is exhausted. When the flash is full, the write process is stopped.
Debugging and Diagnostics
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