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22-8
Catalyst 2940 Switch Software Configuration Guide
78-15507-02
Chapter 22 Configuring System Message Logging
Configuring System Message Logging
This example shows part of a logging display with sequence numbers enabled:
000019: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
Defining the Message Severity Level
You can limit messages that appear for the selected device by specifying the severity level of the
message, as described in Table 22-3.
Beginning in privileged EXEC mode, follow these steps to define the message severity level:
Note Specifying a level causes messages at that level and numerically lower levels to appear 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 22-3 describes the level keywords. It also lists the corresponding UNIX syslog definitions from
the most severe level to the least severe level.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
logging console level Limit messages logged to the console.
By default, the console receives debugging messages and numerically
lower levels (see Table 22-3 on page 22-8).
Step 3
logging monitor level Limit messages logged to the terminal lines.
By default, the terminal receives debugging messages and numerically
lower levels (see Table 22-3 on page 22-8).
Step 4
logging trap level Limit messages logged to the syslog servers.
By default, syslog servers receive informational messages and
numerically lower levels (see Table 22-3 on page 22-8).
For complete syslog server configuration steps, see the “Configuring
UNIX Syslog Servers” section on page 22-10.
Step 5
end Return to privileged EXEC mode.
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.
Table 22-3 Message Logging Level Keywords
Level Keyword Level Description Syslog Definition
emergencies 0 System unstable LOG_EMERG
alerts 1 Immediate action needed LOG_ALERT