26-9
Catalyst 3550 Multilayer Switch Software Configuration Guide
78-11194-09
Chapter 26 Configuring System Message Logging
Configuring System Message Logging
Note Specifying a level causes messages at that level and numerically lower levels to be displayed at the
destination.
To disable logging to the console, use the no logging console global configuration command. To disable
logging to a terminal other than the console, use the no logging monitor global configuration command.
To disable logging to syslog servers, use the no logging trap global configuration command.
Table 26-3 describes the level keywords. It also lists the corresponding UNIX syslog definitions from
the most severe level to the least severe level.
The software generates four other categories of messages:
• Error messages about software or hardware malfunctions, displayed at levels warnings through
emergencies. These types of messages mean that the functionality of the switch is affected. For
information on how to recover from these malfunctions, refer to the system message guide for this
release.
• Output from the debug commands, displayed at the debugging level. Debug commands are
typically used only by the Technical Assistance Center.
• Interface up or down transitions and system restart messages, displayed at the notifications level.
This message is only for information; switch functionality is not affected.
• Reload requests and low-process stack messages, displayed at the informational level. This
message is only for information; switch functionality is not affected.
Step 6
show running-config
or
show logging
Verify your entries.
Step 7
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Table 26-3 Message Logging Level Keywords
Level Keyword Level Description Syslog Definition
emergencies 0 System unstable LOG_EMERG
alerts 1 Immediate action needed LOG_ALERT
critical 2 Critical conditions LOG_CRIT
errors 3 Error conditions LOG_ERR
warnings 4 Warning conditions LOG_WARNING
notifications 5 Normal but significant condition LOG_NOTICE
informational 6 Informational messages only LOG_INFO
debugging 7 Debugging messages LOG_DEBUG
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