Allied Telesis AT-8550 - Manual (Page 227)

AT-9108, AT-8518, AT-8525, and AT-8550 User’s Guide
13-7
Logging
The switch log tracks all configuration and fault information
pertaining to the device. Each entry in the log contains the following
information:
❑ Timestamp — The timestamp records the month and day of
the event, along with the time (hours, minutes, and seconds)
in the form HH:MM:SS. If the event was caused by a user, the
user name is also provided.
❑ Fault level — Table 13-3 describes the three levels of
importance that the system can assign to a fault.
By default, log entries that are assigned a critical or warning
level remain in the log after a switch reboot. Issuing a clear log
command does not remove these static entries. To remove log
entries of all levels (including warning or critical), use the
following command:
clear log static
❑ Subsystem — The subsystem refers to the specific functional
area to which the error refers. Table 13-4 describes the
subsystems.
Table 13-3 Fault Levels Assigned by the Switch
Level Description
Critical A desired switch function is inoperable. The switch
may need to be reset.
Warning A noncritical error that may lead to a function
failure.
Informational Actions and events that are consistent with
expected behavior.
Table 13-4 Fault Log Subsystems
Subsystem Description
Syst General system-related information. Examples
include memory, power supply, security violations,
fan failure, overheat condition, and configuration
mode.
STP STP information. Examples include an STP state
change.