Extreme Networks Summit 300-48, Руководство пользователя программного обеспечения

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138 Summit 300-48 Switch Software User Guide
Status Monitoring and Statistics
NOTE
Extreme Networks recommends that you set the system recovery level to
critical
. This allows
ExtremeWare to log an error to the syslog and automatically reboot the system after a critical exception.
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 49 describes the four 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 50
describes the subsystems.
Table 49: 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.
Debug Information that is useful when performing detailed
troubleshooting procedures.
Table 50: 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.
Brdg Bridge-related functionality. Examples include low table space
and queue overflow.
SNMP SNMP information. Examples include community string
violations.
Telnet Information related to Telnet login and configuration performed
by way of a Telnet session.
VLAN VLAN-related configuration information.