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 t he system after a critica l 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 — Table49 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. Table50
describes the subsystems.
Table 4 9: 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 performi ng detaile d
troubleshooting procedures.
Table 5 0: 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.