NOTE:
Information center assigns log, trap, and debugging information to 10
information channels accordin
to
ei
ht severity levels and then outputs the information to different destinations. The followin
describes the
working process in details.
Classification of system information
The system information of the information center is categorized into the following types:
• Log information
• Trap information
• Debugging information
Levels of system information
The information is classified into eight levels by severity. The severity levels in the descending order are
emergency, alert, critical, error, warning, notice, informational and debug. When the system information
is output by level, the information with severity level higher than or equal to the specified level is output.
For example, in the output rule, if you configure to output information with severity level being
informational, the information with severity level being emergency through informational will be output.
Table 4 Severity description
Severity Severity value Description
Corresponding keyword
in commands
Emergency 0 The system is unusable. emergencies
Alert 1 Action must be taken immediately alerts
Critical 2 Critical conditions critical
Error 3 Error conditions errors
Warning 4 Warning conditions warnings
Notice 5 Normal but significant condition notifications
Informational 6 Informational messages informational
Debug 7 Debug-level messages debugging
Output destinations and channels of system information
The system supports ten channels. The channels 0 through 6 are configured with channel names and
output rules, and they are associated with output destinations by default. The channel names, output rules
and the associations between the channels and output destinations can be changed through commands.
You can configure channels 7, 8 and 9without changing the default configuration of the channels.
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