Information Classification

The device generates three types of messages: logs, traps, and debugging messages. Table 1 describes these three types of information.

**Table 1** Classification of information
Information Type	Description
Log	Logs record user operations, system faults, and system security, including user logs, security logs, and diagnostic logs. User logs record user operations and system operating information. Security logs record security information, including user account management, protocols, attack defense, and status. Diagnostic logs record information used for fault location.
Trap	Traps are notifications generated when the device detects faults. They record system status information. Unlike logs, traps need to be notified to administrators in a timely manner.
Debugging message	Debugging messages show internal operating information of the system. They are mainly used to trace the device running status. Debugging messages are generated only after the debugging of a module is enabled.