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4
Command Line Interface
Default Setting
None
Command Mode
Global Configuration
Command Usage
The logging process controls error messages saved to switch memory. You
can use the logging history command to control the type of error messages
that are stored.
Example
Console(config)#logging on
Console(config)#
Related Commands
logging history (4-44)
clear log (4-47)
logging history
This command limits syslog messages saved to switch memory based on severity.
The no form returns the logging of syslog messages to the default level.
Syntax
logging history {flash | ram} level
no logging history {flash | ram}
• flash - Event history stored in flash memory (i.e., permanent memory).
• ram - Event history stored in temporary RAM (i.e., memory flushed on
power reset).
• level - One of the levels listed below. Messages sent include the selected
level down to level 0. (Range: 0-7)
Level
Severity Name
7
debugging
6
informational
5
notifications
4
warnings
3
errors
2
critical
1
alerts
0
emergencies
* There are only Level 2, 5 and 6 error messages for the current firmware release.
4-44
Table 4-18 Logging Levels
Description
Debugging messages
Informational messages only
Normal but significant condition, such as cold start
Warning conditions (e.g., return false, unexpected return)
Error conditions (e.g., invalid input, default used)
Critical conditions (e.g., memory allocation, or free
memory error - resource exhausted)
Immediate action needed
System unusable
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