Specifications
Appendix C Troubleshooting
Log File Information
C-6
Content Services Switch Getting Started Guide
78-11766-01
Log File Information
The CSS provides logging capabilities for debug and system monitoring by 
generating the log files described in Table C-6.
Table C-6 CSS Log File Descriptions
Log File
Log File Destination
Records
Default 
Location
Alternate
Location
Boot.log Hard disk 
and console 
or flash disk 
and console
None Results of the boot process. 
Boot.bak Hard disk 
and console 
or flash disk 
and console
None Backup of a boot log file. Each time you 
reboot the CSS, the software renames 
the current boot log file to boot.log.prev 
and starts a new boot log file. The CSS 
overwrites an existing backup boot log 
file when a boot log file is renamed.
Sys.log Hard disk or 
flash disk
Console
syslogd
VTY1
VTY2
Log information for user-defined 
subsystem or CLI commands. By 
default, logging is enabled and logs 
subsystem all with level warning. The 
CSS creates sys.log to record this log 
information.
Sys.log.pr
ev
Hard disk or 
flash disk
Console
syslogd
VTY1
VTY2
Backup of a system log file. When a 
system log file reaches its maximum size 
(50 MB, for a hard disk-based CSS; 10 
MB, for a flash disk-based CSS), the 
software renames the system log file to 
sys.log.prev and starts a new system log 
file. The CSS overwrites an existing 
backup system log file when a system 
log file is renamed. When time you 
reboot a CSS, the software continues to 
use the existing system log file until it 
reaches its maximum size.










