Technical data
4 Network OS Message Reference
53-1002489-01
Configuring the syslog message destinations
1
System error message logging
The RASLog service generates and stores messages related to abnormal or erroneous system
behavior. It includes the following features:
• All RASLog error messages are saved to nonvolatile storage by default.
• The system error message log can save a maximum of 4096 messages.
• The system message log is implemented as a circular buffer. When more than the maximum
entries are added to the log file, new entries overwrite the old entries.
• Messages are numbered sequentially from 1 through 2,147,483,647 (0x7ffffff). The sequence
number continues to increase after the message log wraps around. The sequence number can
be reset to 1 using the clear logging raslog command. The sequence number is persistent
across power cycles and switch reboots.
• By default, the show logging raslog command displays all the system error messages.
• Trace dump, FFDC, and core dump files can be uploaded to the FTP server using the copy
support ftp command.
• It is recommended to configure the syslogd facility as a management tool for error logs. This is
important for dual-domain switches because the syslogd facility saves messages from two
logical switches as a single file and in sequential order. For more information, refer to “System
logging daemon” on page 4.
Configuring the syslog message destinations
You can configure the Network OS to send the syslog messages to the following output locations:
syslog daemon, system console, and SNMP management station.
System logging daemon
The system logging daemon (syslogd) is a process on UNIX, Linux, and some Windows systems that
reads and logs messages as specified by the system administrator.
Network OS can be configured to use a UNIX-style syslogd process to forward system events and
error messages to log files on a remote host system. The host system can be running UNIX, Linux,
or any other operating system that supports the standard syslogd functionality. All the RASLog
system error messages and Audit messages are forwarded to the syslogd. Configuring for syslogd
involves configuring the host, enabling syslogd on the Brocade model, and, optionally, setting the
facility level.
WARNING Warning-level messages highlight a current operating condition that must be checked or it
may lead to a failure in the future. For example, a power supply failure in a redundant system
relay a warning that the system is no longer operating in redundant mode unless the failed
power supply is replaced or fixed.
INFO Info-level messages report the current non-error status of the system components; for
example, detecting online and offline status of an interface.
TABLE 2 Severity levels of the system messages (Continued)
Severity level Description