Reference Guide

Debugging and Diagnostics | 343
logging coredump stack-unit
s z
Enable coredump on a stack.
Syntax
logging coredump stack-unit {0-5/all}
Parameters
Defaults
Enabled by default on customer builds.
Command Modes
CONFIGURATION
Command History
Usage Information
The Kernel core dump can be large and may take up to 5 to 30 minutes to upload. FTOS 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 coredump is aborted. On the S-Series, if the FTP server is not
reachable, the application coredump is aborted. FTOS completes the coredump process and wait until
the upload is complete before rebooting the system.
Related
Commands
tcpdump
s z
Enable a TCP dump for CPU bound traffic.
Syntax
tcpdump cp [capture-duration time | filter expression | packet-count value | snap-length value |
write-to path]
To disable the TCP dump, use no tcpdump
Parameters
S6000
0-5
Enter the stack-unit id.
Range: S4810 - 0 to 11
Z9000 - 0
S6000 - 0 to 5.
all
Enable coredump on all stack- unit.
Version 9.0.2.0 Introduced on S6000
Version 8.3.11.1 Introduced on Z9000.
Version 8.3.10.1 Introduced on S4810.
logging coredump server
Designate a server to upload kernel core-dumps.
S6000
capture-duration
Enter the time for packet capturing. The timer begins as soon as the
command is enabled.
Range: 20-9000 seconds
filter
Specify the packet that will be dumped. If no filter is entered, all packets
are dumped. Filter expressions usually consist of an id (name or number)
preceded by one or more qualifiers. There are three different kinds of
qualifier: type, direction, or protocol.
Enclose the filter option with double quotes: “port 20.”
Range: 1-100 characters.