H3C Technologies H3C SR8800 - Manual (Page 184)

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NOTE:
By default, the information center is enabled. An enabled information center affects the system
performance in some degree due to information classification and output. Such impact becomes more
obvious in the event that there is enormous information waiting for processing.
Classification of system information
The system information of the information center falls into the following types:
• Log information
• Trap information
• Debugging information
Eight 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 6 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
Eight output destinations and ten channels of system
information
The system supports eight information output destinations, including the console, monitor terminal
(monitor), log buffer, log host, trap buffer, SNMP module, web interface (syslog), and log file.
The system supports ten channels. The channels 0 through 5, and channel 9 are configured with channel
names, output rules, and 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. In addition, you can configure channels 6, 7, and 8 without changing the default
configuration of the eight channels.