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1 Information Center
Information Center Overview
Introduction to Information Center
Acting as the system information hub, information center classifies and manages system information.
Together with the debugging function (the debugging command), information center offers a powerful
support for network administrators and developers in monitoring network performance and diagnosing
network problems.
The information center of the system has the following features:
Classification of system information
The system is available with three types of information:
z Log information
z Trap information
z Debugging information
Eight levels of system information
The information is classified into eight levels by severity and can be filtered by level. More emergent
information has a smaller severity level.
Table 1-1 Severity description
Severity Severity value Description
emergencies 1 The system is unavailable.
alerts 2 Information that demands prompt reaction
critical 3 Critical information
errors 4 Error information
warnings 5 Warnings
notifications 6 Normal information that needs to be noticed
informational 7 Informational information to be recorded
debugging 8 Information generated during debugging
Information filtering by severity works this way: information with the severity value greater than the
configured threshold is not output during the filtering.
z If the threshold is set to 1, only information with the severity being emergencies will be output;
z If the threshold is set to 8, information of all severities will be output.
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