D-Link DGS-6600-48TS Configuration Guide - Page 580
Logging System Messages, Overview, An Introduction to Logging System Messages
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Volume 12-Troubleshooting / Chapter 59-Logging System Messages Chapter Overview Chapter 59 Logging System Messages Chapter Overview The following topics are included in this chapter, please go to the topic for more detailed information: • Chapter Overview • An Introduction to Logging System Messages • Logging System Messages Configuration Commands • Logging System Messages Configuration Commands • Managing Messages in the Local Buffer • Logging System Messages to a Syslog Server • List of Constants and Default Settings An Introduction to Logging System Messages During operation, the Switch will record any pre-defined events that have occurred on the Switch in the form of system messages. These messages can provide the administrator with information that may be useful for understanding what is happening on the network, therefore helping the administrator to troubleshoot any potential problems. Due to the broad coverage of reported events, the system messages enable the administrator to isolate many kinds of problems, regardless of whether they are hardware or software related. The system messages are associated with a severity level. Distinguishing messages with different severity levels, allows the administrator to efficiently manage the system messages. Whenever an event occurs on the Switch, a message that describes the event will be sent to the Syslog process. On receiving the Syslog message, the Syslog process will add a time stamp to the message. The user can choose to log the system messages in the local buffer and can also specify if system messages should be reported to a Syslog server. The system message can be reported by many functional modules operating on the Switch. A system message will encode the date, time, and message content. Every system message has a severity, it represents the severity level of the message. (The different severity levels for messages are described in Table 59-1 ) Level Number 0 1 2 3 4 5 Severity Level Description Emergency System is unusable. Alert Critical Error Action must be taken immediately. Critical conditions. Error conditions. Warning Warning conditions. Notice Normal but significant conditions. Table 59-1 Descriptions of Severity Levels for Syslog Error Messages DGS-6600 Configuration Guide 580