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Chapter 33
Configuring System Message Logging
Table 33-2 System Message Log Severity Level Definitions
Severity
Level
0
1
2
3
4
5
6
7
System Log Message Format
System log messages begin with a percent sign (
displayed in the following format:
mm/dd/yyy:hh/mm/ss:facility-severity-MNEMONIC:description
Table 33-3
Table 33-3 System Log Message Elements
Element
mm/dd/yyy:hh/mm/ss
facility
severity
MNEMONIC
description
This example shows typical switch system messages (at system startup):
1999 Apr 16 10:01:26 %MLS-5-MLSENABLED:IP Multilayer switching is enabled
1999 Apr 16 10:01:26 %MLS-5-NDEDISABLED:Netflow Data Export disabled
1999 Apr 16 10:01:26 %SYS-5-MOD_OK:Module 1 is online
1999 Apr 16 10:01:47 %SYS-5-MOD_OK:Module 3 is online
1999 Apr 16 10:01:42 %SYS-5-MOD_OK:Module 6 is online
1999 Apr 16 10:02:27 %PAGP-5-PORTTOSTP:Port 3/1 joined bridge port 3/1
1999 Apr 16 10:02:28 %PAGP-5-PORTTOSTP:Port 3/2 joined bridge port 3/2
78-12647-02
Keyword
emergencies
alerts
critical
errors
warnings
notifications
informational
debugging
describes the elements of syslog messages.
Description
Date and time of the error or event. This information appears only if
configured using the set logging timestamp enable command.
Indicates the facility to which the message refers (for example, SNMP, SYS,
etc.).
Single-digit code from 0 to 7 that indicates the severity of the message.
Text string that uniquely describes the error message.
Text string containing detailed information about the event being reported.
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
Description
System unusable
Immediate action required
Critical condition
Error conditions
Warning conditions
Normal but significant
conditions
Informational messages
Debugging messages
) and can contain up to 80 characters. Messages are
%
System Log Message Format
33-3
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